Best Call Blocker Apps for Android (2026)
Few things sour your morning like three spam calls before your coffee is even ready. The good news is that a solid call blocker can hand you back your peace and quiet, filtering robocalls, scammers, and those relentless warranty reminders. We spent weeks living with the apps below on real Android phones, and these are the ones we kept coming back to. For more ways to tame your phone, browse our full communication apps hub, and if you also want to record the calls you do answer, see the best call recorder apps for Android.
1. Truecaller
Truecaller is the heavyweight here, and for good reason. Its community reported database is enormous, so an unknown number usually arrives with a name and a spam score before you answer. We found the caller ID genuinely accurate in testing, flagging warranty scams instantly. The free tier handles blocking well, while Premium adds ghost call protection and ad removal for a yearly fee.
2. Hiya
Hiya feels lighter and cleaner than Truecaller, which is exactly why some people prefer it. It quietly blocks known spam and fraud numbers without nagging you for permissions every five minutes. We liked how unobtrusive it was day to day, just silently catching the junk. The free version covers the essentials, and Hiya Premium adds a personal block list and more aggressive auto blocking for a modest monthly cost.
3. Should I Answer?
This is the privacy lover's pick. Should I Answer? works largely offline using a local database, so it does not upload your contacts or constantly phone home. In our testing it reliably flagged nuisance numbers and let us block entire ranges. It is completely free with no real paywall, which is rare. If you distrust apps that hoover up data, this one earns a permanent spot on your phone.
4. Call Control
Call Control leans on a community blacklist and smart reverse number lookup to stop spam before your phone even buzzes. We appreciated the personal blacklist and the option to block by area code, handy when one region keeps spamming you. It also screens spam texts. The free version is generous, and the paid upgrade unlocks reverse lookups and a cleaner, ad free experience for power users.
5. RoboKiller
RoboKiller is the one that fights back. Beyond blocking, it deploys hilarious Answer Bots that keep telemarketers talking to a recording while you get on with your life. During testing the spam catch rate was impressive, and listening to the bot waste a scammer's time is oddly satisfying. There is no free ride here, it is subscription only, but for relentless robocall victims the monthly fee feels fair.
6. Google Phone
Do not overlook the dialer already on many Pixel and Android One devices. Google Phone has built in Call Screen and a spam filter that quietly sends suspected robocalls to voicemail. On a Pixel, the assistant can even answer and ask who is calling for you. It is free, deeply integrated, and needs zero setup. For a lot of people, this is genuinely all the call blocking they need.
7. Calls Blacklist
Calls Blacklist keeps things refreshingly simple. There is no giant cloud database, just a tidy app that lets you blacklist specific numbers, private callers, or anything not in your contacts. We found it perfect for blocking one persistent ex coworker or a single annoying number. It blocks texts too, runs light on resources, and the free tier covers almost everything. A small premium removes ads.
8. Mr. Number
From the makers of Hiya, Mr. Number focuses on letting you block whole groups of numbers at once, like every caller from a certain area code or country. That made it a lifesaver when one prefix kept spamming us repeatedly. It identifies unknown callers and reports spam to a shared community. The core app is free, with optional extras, and the interface stays clean and beginner friendly.
9. Nomorobo
Nomorobo built its name catching robocalls before they ring, and the Android app brings that reputation to your dialer. Setup is quick and the blocking is dependable, especially against the automated dialers that plague mobiles. It runs on a low monthly subscription with a free trial so you can test it first. We found it a no fuss option for people who just want the spam to stop.
10. TrapCall
TrapCall does something the others do not, it unmasks blocked and private numbers so you can finally see who keeps hiding behind No Caller ID. For anyone dealing with harassment, that is a genuine relief, and it can blacklist those numbers afterward. It also records calls and transcribes voicemail. This is a paid subscription service, but the unmasking feature is worth it if anonymous callers are the real problem.
11. Showcaller
Showcaller blends caller ID with straightforward call blocking in one tidy package. It identifies incoming spam, lets you build a personal block list, and even shows business numbers with logos so you know who is calling. We liked the clean layout and how lightweight it felt on older phones. The free version is fully usable, and a cheap premium tier strips ads and unlocks unlimited lookups.
Frequently asked questions
Do call blocker apps actually stop spam calls?
Yes, the good ones make a real difference. Apps that tap into large shared databases, like Truecaller and Hiya, catch the vast majority of known spam and robocalls automatically. No app blocks one hundred percent, since scammers spin up new numbers daily, but in our testing a decent blocker cut the noise dramatically within the first week.
Are free call blocker apps good enough?
For most people, absolutely. Free tiers from Should I Answer?, Calls Blacklist, and even the built in Google Phone dialer handle everyday blocking without costing a penny. You generally only need a paid plan if you want extras like reverse number lookups, answer bots that waste scammers' time, or the ability to unmask private callers.
Will a call blocker drain my battery or slow my phone?
Not noticeably with the well built ones. Lightweight apps such as Calls Blacklist and Should I Answer? barely register on battery use because they check numbers locally. Heavier apps with constant cloud syncing use a little more, but on any modern Android phone the impact during our testing was small enough that we never thought about it.
Can I block calls without giving an app my contacts?
You can. Should I Answer? works mostly offline and does not upload your address book, and simple tools like Calls Blacklist only need access to the dialer to function. If privacy matters to you, look for apps with a clear policy and avoid anything that insists on uploading contacts before it will block a single number.