Android already ships app timers, a Focus mode and a Bedtime routine, and Family Link covers a child's phone. All free, all already there. A third party blocker earns its permissions only when you keep undoing those built in limits, because what the good ones sell is friction: a delay, a password, a schedule you cannot argue with.
Digital Wellbeing is a Google LLC app, 3.6 stars from about 1.45 million ratings, no ads or purchase labels. Google's help page describes three tools.
The gap is not the feature list, it is who holds the off switch: every limit above comes off from the screen that created it, with no password and no wait. That is a measurement, not a barrier. Guides to notes, calendars and planners sit in productivity.
Family Link is Google's parental controls app: 4.6 stars from around 5.26 million ratings, no ads or purchase labels. The difference is who holds the controls: Family Link runs from a parent's phone, a self blocker from the phone it restricts. The wider field, ten apps compared, is in the best parental controls apps for Android, and the menu by menu setup in how to set up parental controls on Android.
A blocker is also not a lock. For a PIN that stops somebody else holding your phone from opening an app, see the best app lock apps for Android.
What separates these three is what happens when you switch them off.
AppBlock by MobileSoft s.r.o. is the highest rated of the three: 4.7 stars from about 233,000 ratings, updated 3 August 2026. Its listing describes app and website blocking, schedules that fire on time, location or Wi-Fi network, and a Strict Mode it says stops you bypassing your own rules.
Stay Focused by INNOXAPPS LLP is 4.5 stars from roughly 167,000 ratings, updated 31 July 2026. Its permissions note is the clearest here: Device Administrator, in its own words, so that you can prevent yourself from uninstalling it, plus the Accessibility API for websites.
Freedom by Eighty Percent Solutions Corporation syncs blocking sessions to Mac, Windows, Chrome and iOS, covering the laptop. It shows 4.5 stars, but from only about 7,920 ratings, updated 28 July 2026. Locked Mode and recurring scheduling sit under Premium, at 39.99 US dollars a year.
StayFree, listed by ST Pulse and calling itself StayFree by Sensor Tower, is the measurement first pick: 4.6 stars from about 273,000 ratings, updated 28 July 2026. It claims to be totally ad free, with usage charts and scheduled focus and sleep modes. Its Data safety card declares that app info and performance may be shared with third parties.
ScreenZen scores highest here at 4.8 stars, from a smaller base of about 30,300 ratings, updated 12 May 2026. Its listing describes a pause before a distracting app opens, with a wait that can grow each time you come back. Its Data safety card is the least comfortable of the set: sharing of app activity and device identifiers, and data that cannot be deleted.
Forest by Seekrtech is the gamified one, at 4.4 stars from around 811,000 ratings, updated 3 August 2026. A tree grows while the timer runs and dies if you leave. Its listing scopes blocking to focus sessions and scheduled Time Guard windows, not all day limits: a timer with teeth rather than a full blocker. For a routine rather than a wall, see the best habit tracker apps for Android.
Then read the developer name and the Data safety card: BlockSite, 3.8 stars from about 56,700 ratings, discloses that it analyses aggregated de-identified information about your mobile data and app use.
Blocking an app is the easy half. StayFree's listing says the Accessibility Service detects which website you are on so chosen sites can be blocked, and Stay Focused's offers URL blocking across supported browsers. That phrase is the caveat: the blocker reads only browsers it recognises, so an unfamiliar one, or a link opening inside another app, gets round it.
The device wide alternative involves no blocker. Private DNS filters at the name lookup for every app at once, free and with nothing in the background; how to block ads on Android covers it.
Three of the seven third party apps named here carry a Contains ads label: Forest, Stay Focused and BlockSite. Six carry In-app purchases, and StayFree has neither. Only Freedom's listing names a figure, 39.99 US dollars a year, with Locked Mode and recurring scheduling behind it, so do not assume a paid tier merely drops the advertising.
Prices move by country and by sale, so trust the purchase screen. Run a free tier for a fortnight: if you undo your own blocks, a strict mode is what you are paying for.
None of this is unbeatable by someone determined, whatever a listing claims. A blocker you install on yourself is administered by the person it restricts: device admin adds a step before uninstalling, a password adds a delay, and a strict mode makes switching off as hard as the developer chose to make it. None of them takes the phone out of your hands. The aim is a decision instead of a reflex. A quieter home screen helps on its own: see this minimalist Niagara setup, and the widget roundup for what earns a slot on it.
Running two at once is the mistake: two Accessibility Services is twice the access for no extra self control.
Often not. Digital Wellbeing is free and offers app timers, a Focus mode and a Bedtime mode. The catch is that you can remove any of those restrictions from the screen that created them, with no password and no wait.
Because that is how a blocker knows which app you just opened. Forest's Play listing says it uses the Accessibility Service API to detect which app is currently active. That access also reads anything on screen, including a banking app, so grant it once.
It can slow you down. Android's device admin documentation says that to uninstall an existing device admin app, users need to first unregister the app as an administrator. Stay Focused states on its listing that its Device Administrator permission exists so you can prevent yourself from uninstalling it. Not every blocker uses that permission: BlockSite puts uninstall prevention behind a password instead.
Several advertise it, but website blocking is the leaky part. StayFree's listing says the Accessibility Service detects which website you are on so chosen sites can be blocked, and Stay Focused's offers URL blocking across supported browsers. An unfamiliar browser can slip past.
A free tier is usually enough for a first fortnight. What is paid varies by app: Freedom puts Locked Mode and recurring scheduling behind a subscription it prices at 39.99 US dollars a year. Prices move by country, so trust the purchase screen.
Yes, by anyone determined enough, whatever a listing claims. A blocker is administered by the same person it restricts, so a strict mode, a password or device admin raises the cost rather than removing the choice. For a child's phone, use Google Family Link.