11 Best Sleep Tracker Apps for Android

Updated August 2026 · Verified against the Play Store listings on 19 August 2026 · the comparison table now compares what each app measures and what it needs, and six claims were withdrawn

Eleven apps, weighed on the one thing you can check before installing anything: what each app can physically measure, and what it needs from you first.

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Best overall tracking

Rating 4.6 from 391,590 reviews · Installs 10,000,000+ · Free to install · In-app purchases $0.99 to $75.00 per item · Developer Petr Nálevka (Urbandroid) · Listing updated 18 August 2026 · Contains ads: Yes · checked 19 August 2026

Google Play listing · 4.6 (391,590) · read 19 August 2026

Sleep as Android is the most capable tracker here and the highest rated at 4.6, and its developer publishes a comparison of the app’s own sleep phases against a clinical sleep lab. It is free to install, its listing carries advertising, and in-app purchases run $0.99 to $75.00 per item. The bluntest thing against it is in its own Data Safety section, which declares both that it may share data with third parties and that data cannot be deleted.

What it measures, and how. Urbandroid’s own sleep tracking documentation sets the sensor options out in a table with the position each one needs: the accelerometer, for which the phone must be placed directly on the mattress; sonar, which turns the speaker and microphone into contactless tracking from a bedside table; and a paired wearable on the wrist, which the same table marks as the maximum accuracy option. On what that produces, Urbandroid’s own comparison against a clinical sleep lab is unusually plain: we monitor physical activity during sleep, as it is easy to measure on a wide range of consumer devices, and periods of relatively low activity are reported as deep sleep. Sleep stages here are inferred from movement rather than measured from brain activity, and the developer says so itself. That comparison is the developer’s own rather than an independent one, it was published in 2020, and it ran the app’s algorithms over a public dataset of 31 nights that pairs wrist actigraphy with expert annotated polysomnography. Its listing also states the pricing shape in one line: seven days of premium, after which you keep the free tier or upgrade.

The medical limit, in the developer’s own words. Apnea is a separate question with a separate answer. Urbandroid’s own sleep apnea page describes pre-screening only, requires a compatible pulse oximeter paired to the app before it will produce anything at all, and states in the same document: The use of Sleep as Android does not contain or constitute, and should not be interpreted as, medical advice or opinion.

• Good: Rated 4.6 from 391,590 reviews, the highest score on this page
• Good: The developer documents where the phone goes for each way of tracking: on the mattress for the accelerometer, a bedside table for contactless sonar, or your wrist for a paired wearable
• Good: The developer publishes its own comparison of the app’s sleep phases against expert scored polysomnography records, and states in the same document how those phases are produced
• Con: Its listing carries advertising, one of only three on this page that does
• Con: Data Safety declares sharing with third parties and that data cannot be deleted, a pairing only Sleepa also carries here
• Con: The settings are dense enough that first setup takes real patience

Back to the comparison table

Skip this if. Skip it if you want something you can open once and never configure.

Choosing between them. Choose Sleep as Android over Sleep Cycle for depth of tracking, and Sleep Cycle over it for a calmer interface.

Best for Galaxy owners

Rating 3.2 from 1,576,208 reviews · Installs 1,000,000,000+ · Free to install · No in-app purchases listed · Developer Samsung Electronics Co., Ltd. · Listing updated 24 July 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 3.2 (1,576,208) · read 19 August 2026

Samsung Health is free, its listing carries no advertising label and lists no in-app purchases at all, and on a Galaxy phone there is nothing to add. It is also the lowest rated app here at 3.2, from 1,576,208 reviews, the largest sample on this page, so that score is a considered verdict rather than noise. Against it: its Data Safety section declares it may share data with third parties.

What it measures, and how. Samsung puts the detail behind the hardware in its own Play listing: Monitor your sleep patterns in more detail with Galaxy Watch. What the phone alone does is narrower, and the permission list on that same listing is specific about it: the microphone is Used to record audio for snore detection. That same listing draws the line on what any of it means: Samsung Health is intended for fitness and wellness purposes only and is not intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease. It also states that the app requires Android 10 or later.

• Good: Free, with no in-app purchases listed and no advertising label
• Good: An install band of 1,000,000,000+, so on a Galaxy phone there is nothing to add
• Good: With a Galaxy Watch it reads from hardware on your wrist rather than inferring from phone movement
• Con: Rated 3.2 from 1,576,208 reviews, the lowest here and on the largest sample
• Con: Data Safety declares it may share data with third parties
• Con: Little use without Samsung hardware, and the phone-only sleep picture is thin

Back to the comparison table

Skip this if. Skip it if you do not own a Galaxy phone or watch.

Choosing between them. Choose Samsung Health over Sleep as Android only if you already wear a Galaxy Watch.

Four of the eleven put the measuring itself behind hardware you may not own, or behind another app. Garmin Connect records nothing at all without a Garmin device, Google Health is thin without a Fitbit or Pixel Watch, Samsung Health puts the sleep detail behind a Galaxy Watch in its own wording, and Google Fit records nothing in any configuration and only displays what another app or watch writes into it. That is the single biggest filter on this page, and it is worth applying before you compare a single feature.

Where the phone does the work, the developers disagree about where the phone goes, and each of them is specific. Urbandroid says the accelerometer needs the phone placed directly on the mattress, and offers ultrasonic sonar from a bedside table as the contactless alternative. Sleep Cycle contradicts the pillow habit outright in its own listing and asks for the nightstand or the floor. SnoreLab wants the phone face down beside the bed, roughly an arm’s length from your face, with the microphones pointing at you. None of that is a detail: it decides whether an app fits your bedroom at all.

At the other end, four track from the phone alone: Sleep as Android, Sleep Cycle, SnoreLab and RISE. The first two set an alarm inside a window rather than at a fixed minute, and neither needs a watch. SnoreLab narrows the job to sound and hands you the recordings. RISE goes further and refuses to draw sleep stages at all, modelling sleep debt from phone data instead.

Best smart alarm

Rating 4.3 from 217,367 reviews · Installs 10,000,000+ · Free to install · In-app purchases $0.99 to $59.99 per item · Developer Sleep Cycle AB · Listing updated 14 August 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 4.3 (217,367) · read 19 August 2026

Sleep Cycle is the easiest of the phone-only trackers to live with, because the interface asks almost nothing of you and the smart alarm needs no wearable. It carries no advertising label and is free to install, with in-app purchases from $0.99 to $59.99 per item. Two things against it: nothing it publishes says which features those purchases unlock, and its Data Safety section declares it may share data with third parties.

What it measures, and how. Sleep Cycle is the clearest entry on this page about where the phone goes, and it is not on the mattress: its own listing says No need to put your phone under your pillow. Just place your device on the nightstand or close by on the floor, with the requirements list on the same listing also asking for the ability to charge the phone by the bed, and its own site states No wearables needed, just your phone. Sleep Cycle’s own site also describes what reaches the app from that distance: The app captures every breath, unveiling the precise rhythm of your nights. It says its refinements pinpoint light, deep and REM sleep, and grounds the method on a patent it names on its own site, US Patent 8493220, while the quality score from 1 to 100 is the listing’s own. The stage split is therefore Sleep Cycle’s account of your night, and sound from across the room is the only mechanism its own pages name.

• Good: No advertising label on its listing, and the smart alarm works with no wearable at all
• Good: Its own listing puts the phone on the nightstand or the floor rather than in the bed
• Good: Rated 4.3 across 217,367 reviews, on a listing updated 14 August 2026
• Con: Data Safety declares it may share data with third parties
• Con: Neither its listing nor its own site says what the paid tier contains, though both point at one: in-app purchases to $59.99 per item, and a seven day trial
• Con: Less raw capability than Sleep as Android for the same money

Back to the comparison table

Skip this if. Skip it if you want snore recording, which Sleep as Android and SnoreLab treat as the main event.

Choosing between them. Choose Sleep Cycle over Sleep as Android when you want fewer settings and no advertising.

Best free place to collect sleep data

Rating 3.4 from 684,011 reviews · Installs 100,000,000+ · Free to install · No in-app purchases listed · Developer Google LLC · Listing updated 19 August 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 3.4 (684,011) · read 19 August 2026

Google Fit is free, its listing carries no advertising label, it lists no in-app purchases, and it is one of only four apps here whose Data Safety section declares no data shared with third parties. It is also the one entry on this page that records no sleep at all. Rated 3.4 from 684,011 reviews, it is the place other apps write to rather than a tracker in its own right.

What it measures, and how. Nothing, and Google says so on its own help page: You can sync your data from your sleep-tracking app into Google Fit and find your sleep charts, and If you track your sleep in a connected app or device, you’ll find a chart of your sleep. The description on its own Play listing names the apps that feed it, and Sleep as Android is on that list. Its Data Safety section is the strongest on this page in one specific way: alongside no data shared with third parties it declares an independent security review, which no other entry here declares.

• Good: No advertising label, no in-app purchases and no data shared with third parties on its listing
• Good: The only Data Safety section here that also declares an independent security review
• Good: Its own listing names Sleep as Android among the apps that write into it
• Con: Rated 3.4 from 684,011 reviews, the second lowest score on this page
• Con: It records no sleep of its own: with no watch and no other app it shows an empty chart
• Con: No smart alarm, no snore recording and no stage detection of its own

Back to the comparison table

Skip this if. Skip it if you have nothing else that records sleep, because on its own it has nothing to display.

Choosing between them. Choose Google Fit over Samsung Health when you have no Galaxy hardware and want the collector rather than the tracker.

Best with a wearable

Rating 3.6 from 1,303,425 reviews · Installs 100,000,000+ · Free to install · In-app purchases $7.99 to $99.99 per item · Developer Google LLC · Listing updated 18 August 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 3.6 (1,303,425) · read 19 August 2026

The app this page used to list as Fitbit is now Google Health (Fitbit), published by Google LLC rather than Fitbit. It is free to install, its listing carries no advertising label and declares no data shared with third parties, and in-app purchases run $7.99 to $99.99 per item. It now sits at 3.6 from 1,303,425 reviews, a score that has fallen since this page last read it, and without a compatible wearable there is very little to see.

What it measures, and how. The sleep stage claim here is the listing’s claim, and it is worth keeping it in those terms: Google’s description on its own Play listing says the coach will analyze your nightly sleep stages, identify long-term trends, and provide actionable guidance based on that data, and that those insights are powered by an improved sleep algorithm. The description on that same listing scopes the coach itself: Available in certain countries with Google Health Premium. The staging comes off the wrist, from the Fitbit or Pixel Watch the description names as the devices you sync, so on a phone alone none of it applies. This is a listing change rather than a new app: the package identifier is unchanged, so an existing install simply became Google Health.

• Good: No advertising label and no data shared with third parties on its listing
• Good: The listing describes nightly sleep stages and long term trends taken off the wrist rather than inferred from a phone
• Good: An install band of 100,000,000+, on a listing updated 18 August 2026
• Con: Rated 3.6 from 1,303,425 reviews, and the score has fallen since the last check
• Con: The coaching that carries the sleep insight is Premium and limited to certain countries, at $7.99 to $99.99 per item
• Con: Renamed and now published by Google LLC, which changes who holds the data

Back to the comparison table

Skip this if. Skip it if you have no compatible wearable, because the phone-only picture is thin.

Choosing between them. Choose it over Garmin Connect if your hardware is a Fitbit or a Pixel Watch rather than a Garmin.

Best for Garmin owners

Rating 4.4 from 1,103,955 reviews · Installs 50,000,000+ · Free to install · No in-app purchases listed · Developer Garmin · Listing updated 29 July 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 4.4 (1,103,955) · read 19 August 2026

Garmin Connect is the cleanest entry here on its own listing: free, no advertising label, no in-app purchases listed at all, no data shared with third parties, rated 4.4 from 1,103,955 reviews. The whole catch is hardware. Garmin’s own description makes the app conditional on a device, so the price of entry is the watch rather than the app.

What it measures, and how. Nothing, on its own. Garmin states the condition in the description on its own Play listing: once you pair your phone with a Forerunner, Venu, fēnix or another compatible Garmin device, you can review your tracked activities and health metrics, and sleep appears there inside a list of trends alongside heart rate, steps and stress. One limit this page will not step past: the no in-app purchases line is what Garmin declares on its Google Play listing, read on 19 August 2026. It is a statement about Play billing and nothing else, and this page makes no claim about anything Garmin may sell outside it.

• Good: No advertising label, no in-app purchases listed and no data shared with third parties
• Good: An install band of 50,000,000+, on a listing updated 29 July 2026
• Good: Sleep sits beside heart rate, stress and steps in one place, with nothing on the listing to unlock
• Con: It measures nothing at all without a Garmin device: the app is a display for the watch
• Con: The interface is built around training data a sleep-only reader will never use
• Con: What the listing declares covers Play billing only, so it is not a promise that nothing Garmin sells costs money

Back to the comparison table

Skip this if. Skip it if you do not own a Garmin device, because there is no phone-only mode worth having.

Choosing between them. Choose Garmin Connect over Google Health when your watch is a Garmin, which settles it entirely.

Best for snoring

Rating 4.4 from 52,334 reviews · Installs 5,000,000+ · Free to install · In-app purchases $2.99 to $49.99 per item · Developer Reviva Softworks Ltd · Listing updated 11 August 2026 · Contains ads: Yes · checked 19 August 2026

Google Play listing · 4.4 (52,334) · read 19 August 2026

SnoreLab records and scores snoring through the night and hands you the clips, which is the one job it does and the reason to install it. It is free to install, its Data Safety section declares no data shared with third parties, and in-app purchases run $2.99 to $49.99 per item. Two things against it: its listing carries advertising, and the breathing analysis that the same listing ties to apnea severity is a paid feature and is not a diagnosis.

What it measures, and how. Sound, from beside the bed. SnoreLab’s own how it works page says where the phone goes: face down near the bed, about an arm’s length away from your face with the device’s microphones facing towards you. SnoreLab’s own breathing page calls BreathFlow a wellness score designed to help you track nightly variations in your breathing stability using only a smartphone, states that it was built against sleep lab reference data, and says plainly that it is available to SnoreLab Premium users at no additional cost, but is not included in the free version of the app.

The medical limit, in the developer’s own words. This is the entry where a listing sentence sits closest to a medical claim, so both halves belong on the page. SnoreLab’s description on its own Play listing says BreathFlow is SnoreLab’s unique measure of breathing stability correlated with apnea severity, and that the app can be useful in medical consultations when investigating sleep disorders such as sleep apnea. The description on that same listing closes with the limit: SnoreLab is not a medical device, nor is it intended to replace professional medical advice and/or diagnosis. SnoreLab is not intended to diagnose or treat sleep apnea or any illness/medical condition. Reviva Softworks repeats it on its own legal disclaimer, which states that the app does not provide medical advice, diagnosis, or treatment.

• Good: Data Safety declares no data shared with third parties
• Good: It records and scores snoring across the whole night and keeps the audio clips
• Good: In-app purchases stop at $49.99 per item, the lowest ceiling of the paid apps on this page
• Con: Its listing carries advertising
• Con: It measures snoring and breathing sound only: no sleep stages, no smart alarm
• Con: The breathing analysis is a paid feature, and the developer states in the same breath that it is not a diagnosis

Back to the comparison table

Skip this if. Skip it if snoring is not the thing you are trying to measure.

Choosing between them. Choose SnoreLab over Sleep as Android when snoring is the whole question, and Sleep as Android when it is one of several.

Best for falling asleep

Rating 4.1 from 91,032 reviews · Installs 5,000,000+ · Free to install · In-app purchases $0.99 to $99.99 per item · Developer Maple Media · Listing updated 26 March 2026 · Contains ads: Yes · checked 19 August 2026

Google Play listing · 4.1 (91,032) · read 19 August 2026

Sleepa plays mixable ambient sound to help you fall asleep and tracks nothing at all, so it belongs on this page as a companion rather than as a tracker. It is free to install, rated 4.1 from 91,032 reviews, and in-app purchases run $0.99 to $99.99 per item. Three things count against it: its listing carries advertising, its Data Safety section declares both third party sharing and that data cannot be deleted, and the listing has not been updated since 26 March 2026, the stalest on this page.

What it measures, and how. Nothing. Its description on its own Play listing is about a library of sounds rather than about sleep data, and the one operational fact worth carrying over is that Sleepa does not require internet connection so you can use it anywhere without worrying about using data.

• Good: A large library of mixable ambient sounds with a sleep timer
• Good: Its own listing states it needs no internet connection
• Good: Free to install and usable without an account
• Con: Its listing carries advertising
• Con: Data Safety declares third party sharing and that data cannot be deleted
• Con: It records no sleep at all, so it cannot replace anything else on this page

Back to the comparison table

Skip this if. Skip it if you want measurement, because it plays sound and nothing else.

Choosing between them. Choose Calm over Sleepa if you would rather pay than meet advertising at bedtime.

Best for sleep debt

Rating 4.3 from 9,882 reviews · Installs 1,000,000+ · Free to install · In-app purchases $9.99 to $89.99 per item · Developer Rise Science · Listing updated 6 August 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 4.3 (9,882) · read 19 August 2026

RISE models sleep debt and predicted energy through the day rather than scoring the night, which is a genuinely different idea and the reason to pick it. Its listing carries no advertising label, and it is rated 4.3 from 9,882 reviews, by far the smallest sample here. Against it: its listing sells auto-renewing subscriptions for unlimited access to all premium features, in-app purchases start at $9.99 per item, and its Data Safety section declares it may share data with third parties.

What it measures, and how. RISE answers the question this page is built around more directly than anyone else here, and its answer is a refusal. Rise Science’s own FAQ states While many sleep apps and devices show sleep stages, they are at best an educated guess, and that the app deliberately does not monitor them. On hardware Rise Science’s own FAQ is equally direct: No. All you need is your phone. Use it the way you normally do. No need to sleep with it in your bed either, with a wearable optional rather than required. Its own Play listing adds that the automatic detection leans on step data and on other sleep trackers already on the phone.

• Good: Models sleep debt and daily energy instead of a single nightly score
• Good: No advertising label on its listing
• Good: Its own FAQ says the phone is all it needs, and that the phone does not go in the bed
• Con: Rated 4.3 from only 9,882 reviews, by far the smallest sample on this page
• Con: Effectively subscription only: its own listing puts unlimited access to all premium features behind one, from $9.99 per item after a seven day free trial
• Con: Data Safety declares it may share data with third parties

Back to the comparison table

Skip this if. Skip it if you want a nightly sleep score, which is precisely what it declines to produce.

Choosing between them. Choose RISE over Sleep Cycle if daytime energy matters more to you than the shape of the night.

Best sleep content

Rating 4.5 from 614,233 reviews · Installs 50,000,000+ · Free to install · In-app purchases $0.99 to $399.99 per item · Developer Calm.com, Inc. · Listing updated 11 August 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 4.5 (614,233) · read 19 August 2026

Calm is the best rated of the content apps at 4.5 from 614,233 reviews, and its sleep stories and soundscapes are what people actually keep it for. It carries no advertising label. The number to look at before installing is the in-app purchase range, which reaches $399.99 per item, the highest on this page, and its Data Safety section declares it may share data with third parties.

What it measures, and how. Nothing. Calm is a content app on a page of trackers, and its own listing is clear about the model: Calm is free to download and use. There are never any ads and some of the programs and features are free forever. Some content is only available through an optional paid subscription. The same description markets programs for insomnia. That is Calm’s framing of its own content, not a clinical claim, and nothing on this page treats it as one.

• Good: Rated 4.5 from 614,233 reviews, the strongest score and sample combination among the content apps here
• Good: No advertising label, and its own listing says some programs and features are free forever
• Good: An install band of 50,000,000+, on a listing updated 11 August 2026
• Con: In-app purchases reach $399.99 per item, the highest ceiling on this page
• Con: Data Safety declares it may share data with third parties
• Con: It measures nothing, so it can never tell you how you slept

Back to the comparison table

Skip this if. Skip it if you want data, because Calm helps you sleep and does not tell you how you slept.

Choosing between them. Choose Calm over Headspace for sleep stories, and Headspace over Calm for guided meditation.

Best guided wind-down

Rating 4.3 from 339,973 reviews · Installs 10,000,000+ · Free to install · In-app purchases $4.99 to $119.99 per item · Developer Headspace for Meditation, Mindfulness and Sleep · Listing updated 13 August 2026 · Contains ads: No · checked 19 August 2026

Google Play listing · 4.3 (339,973) · read 19 August 2026

Headspace leads on guided meditation rather than on a library of bedtime stories to browse, and it is rated 4.3 from 339,973 reviews. Its listing carries no advertising label and was updated on 13 August 2026. It is also the only entry here that prints an actual subscription price in its own listing text, and its Data Safety section declares it may share data with third parties.

What it measures, and how. Nothing. Headspace is a wind-down app rather than a tracker, and it is the most explicit entry on this page about the bill: the text of its own Play listing states Subscriptions: $12.99/mo, $69.99/yr (U.S. pricing; local rates may vary), which no other listing here does. The same description names therapy, coaching and an AI companion. Those are Headspace’s descriptions of its own content, and this page does not treat any of them as a clinical claim.

• Good: Its own listing counts over 500 guided meditations, beside sleep meditations, breathing exercises and mindful movement
• Good: No advertising label, on a listing updated 13 August 2026
• Good: The one listing on this page that prints an actual subscription price in its own listing text
• Con: Data Safety declares it may share data with third parties
• Con: In-app purchases run $4.99 to $119.99 per item, and nothing on its listing says what the free tier includes
• Con: It tracks no sleep, so it cannot stand alone on this list

Back to the comparison table

Skip this if. Skip it if you want a library of sleep stories to browse rather than guided meditation.

Choosing between them. Choose Headspace over Calm for guided meditation, and Calm over Headspace for sleep stories.

How to choose a sleep tracker for Android

Start with what the app can physically measure, because that is the difference the feature lists hide. A phone on a mattress feels movement. A phone on a nightstand hears sound, or bounces ultrasound off you. A watch on your wrist reads at the body instead: Garmin’s own listing names heart rate, steps, sleep and stress among the trends a paired device reports, read 19 August 2026, while Urbandroid states on its own listing that any oxygen saturation tracking is done with compatible oximeter devices. None of them reads brain activity, which is what a sleep laboratory does, and Urbandroid’s own comparison against a clinical sleep lab says plainly that its app monitors physical activity during sleep and infers the rest from it.

Then read the Data Safety section, because sleep data is unusually personal

Seven of the eleven declare in their own Data Safety sections that they may share data with third parties: Sleep as Android, Samsung Health, Sleep Cycle, Sleepa, RISE, Calm and Headspace. Four declare they do not: Google Fit, Google Health, Garmin Connect and SnoreLab. Two go further in the wrong direction and declare that data cannot be deleted once collected, Sleep as Android and Sleepa. One, Google Fit, also declares an independent security review.

Advertising, and what free actually means here

Three carry the advertising label: Sleep as Android, SnoreLab and Sleepa. All eleven are free to install, so the label and the in-app purchase range are what separate them on cost. Garmin Connect, Samsung Health and Google Fit list no in-app purchases at all, which is the closest thing to free on this page, and each of those three depends on hardware or on another app before it does anything.

Where a medical question belongs

None of these apps diagnoses anything, and the three whose listings come closest to a clinical subject say so themselves, in their own words and quoted in their entries above: SnoreLab, Samsung Health and Sleep as Android. If snoring, breathing pauses or daytime sleepiness are the reason you are reading this, the right use of these apps is to take a recording to a doctor rather than to replace one.

Checked 19 August 2026: all eleven Play listings were re-read and the page was rebuilt around the column a reader is actually choosing on, what each app measures and what it needs in order to measure it. The comparison table previously compared on price, which read Free for all eleven entries and therefore separated nothing. Two ratings have moved since the last pass and both are corrected: Google Health (Fitbit) is 3.6 rather than the 3.7 this page printed, and RISE is 4.3 rather than 4.4. Review counts, install bands, prices, in-app purchase ranges, advertising labels and Data Safety sections were refreshed from today’s listings, and six listing update dates that had gone stale are corrected. Retracted: the only app on this page with no ads, no in-app purchases and no third party sharing declared, which this page said of Garmin Connect and carried in its capsule. Google Fit’s listing declares exactly the same three things, so the claim was never true; both entries now state their position and Google Fit’s extra independent security review declaration is named. Retracted: Six of the eleven apps here need hardware you may not own. On today’s listings it is four, and they are named: Garmin Connect, Google Health, Samsung Health and Google Fit. Retracted, on Sleep Cycle: The trend analysis most people want is subscriber only, and the claim that the analysis worth having sits behind the subscription. Neither its Play listing nor its own site says what the paid tier contains. The listing lists in-app purchases to $59.99 per item without scoping them, and the site offers a seven day trial without naming what it unlocks, so the page now states only what those two publish. This is not a claim that Sleep Cycle has no paid tier. For the same reason the comparison table no longer says Sleep Cycle measures movement: sound is the only mechanism its listing and its own site name. Retracted, on RISE and Headspace: no useful free tier underneath, and the free tier is a sampler. Nothing on either listing says what its free tier includes. What they do publish is the paid side, and both entries now carry that instead: RISE describes auto-renewing subscriptions for unlimited access to all premium features with a seven day free trial, and Headspace prints its subscription price. Retracted, on Headspace: Structured courses rather than an undifferentiated content library, and the description of the app as courses and wind-down sessions. Its listing text, read in full today, does not use the word course anywhere. It counts over 500 guided meditations and names sleep meditations, breathing exercises, therapy, coaching and mindful movement, so the entry now says that instead. This is not a claim that the app contains no courses. Retracted: the phone has to sit on the mattress or the bedside table all night, which flattened three developers who publish different and specific instructions. Urbandroid documents the mattress for accelerometer tracking and a bedside table for sonar, Sleep Cycle’s own listing asks for the nightstand or the floor and explicitly not under the pillow, and SnoreLab asks for the phone face down about an arm’s length from your face. Added: a per app account of what is measured and how, sourced to the developer’s own documentation and quoted with a link in the same sentence. Added: the two Data Safety declarations this page had never surfaced, that Sleep as Android and Sleepa both declare data cannot be deleted, and that Google Fit alone declares an independent security review. Added: the medical limits the developers publish themselves, quoted beside the listing sentences that come closest to a clinical claim, for SnoreLab, Samsung Health and Sleep as Android. Added: Rise Science’s own statement that sleep stages shown by apps are at best an educated guess, and Urbandroid’s comparison against a clinical sleep lab, which are two of the sharpest sourced statements available about this category. Added: Headspace’s own listing price, the only one published on any listing here. One limit recorded rather than smoothed away: what Garmin declares about in-app purchases is a statement about its Play listing, and this page no longer extends it to anything sold outside Play billing. The block under the heading was rewritten to the owner’s citable form, each pick a self contained sentence carrying its own reason and its own date. Each of those reasons cites the app’s own store listing, because no independent body publishes accuracy results for Android sleep apps; Urbandroid’s comparison against a clinical sleep lab stays in its entry rather than in that block, and the entry now records that it is the developer’s own study, published in 2020 and run over a public wrist actigraphy dataset. The seo title now names the column this page compares on rather than ads and data sharing.