18.9
Whoscall is an Android and iOS app for identifying callers and blocking spam and scam calls.
Free planAndroidiOSWeb
Best Call Blocker Apps in 2026
Call blocker apps help identify or stop unwanted calls. On Android, check that the app supports your phone before installing; this category also covers iOS, web, API, macOS and self-hosted options. Compare platform support, pricing, free plans and trial terms. If open-source code or hosted control matters, check the product details for that option.
28.8
Getcontact is a caller ID and spam-blocking app that identifies calls from numbers outside your contacts and alerts you to unwanted calls.
Free planAndroidiOSWeb
38.8
YouMail combines robocall protection, privacy tools, and visual voicemail for Android, iOS, and the web.
Free planAndroidiOSWeb
- 4
RoboKiller
RoboKiller is an Android and iOS app for blocking spam calls and filtering spam texts.
Free planAndroidiOSWebAPI8.8From $31.99 a year - 5
NumBuster
NumBuster identifies unknown callers and helps protect against phone fraud, spam, and unwanted messages.
Free planAndroidiOSWeb8.4Free plan - 6
Hiya Spam Blocker
Hiya Spam Blocker is a mobile app for Android and iOS that identifies unknown callers and screens or blocks unwanted spam, telemarketing, and robocalls.
Free planAndroidiOS7.8From $24 a year - 7
T-Mobile Scam Shield
T-Mobile Scam Shield helps protect customers on T-Mobile’s network from scam calls, spam texts and harmful websites.
Free planAndroidiOS7.5From $4 a month - 8
Should I Answer?
Should I Answer? is a community-based service and mobile app for identifying and protecting against unwanted calls, telemarketing, and expensive outgoing calls.
Free planAndroidiOSWebExtension7.4Free plan - 9
RealCall
RealCall is a mobile app for caller ID and blocking spam and scam calls, available on Android and iOS.
AndroidiOS7.4From $35.99 a year - 10
PhoneBlock
PhoneBlock helps users block advertising and spam calls using a shared database of reported numbers.
Free planAndroidiOSWebAPI7.3Free plan - 11
Who Called
Who Called filters unwanted calls using an official telemarketer prefix list and community reports.
Free planAndroidiOSWeb7.3Free plan - 12
CallApp
Free planAndroidiOS7.2Free plan - 13
Callfilter.app
Callfilter.app is a free, open-source Android app that rejects incoming calls according to rules you choose.
Free planAndroid7.1Free plan - 14
Truecaller
Truecaller identifies incoming calls and messages and helps users detect and block spam.
AndroidiOSWeb7.1From $74.99 a year - 15
Call Insider
Call Insider is a free service for identifying unknown phone numbers and sharing reports about callers.
Free planAndroidWeb7.0Free plan - 16
Call Assistant AI
Call Assistant AI is a call management app for handling incoming calls and reducing spam and robocalls.
AndroidiOSWeb7.0From $69.99 a year - 17
Verizon Content Transfer
Verizon Content Transfer moves personal data from an old device to a new one, including contacts, photos, videos, calendars, call logs, and audio.
Free planAndroidiOS6.9Free plan - 18
Call Control
Call Control blocks unwanted calls and text messages, including robocalls and telemarketing.
AndroidiOSWebAPI6.9$69.99 one-time - 19
Robocall Blocker
AndroidiOS6.9From $9.99 a month - 20
Nomorobo
AndroidiOS6.9From $19.99 a year - 21
Corta Spam
Corta Spam is a free, open-source Android app that screens incoming calls against rules before the phone rings.
Free planAndroid6.6Free plan - 22
SpamBlocker
SpamBlocker is a free Android app for screening unwanted calls and SMS while leaving the phone’s default call and messaging apps in place.
Free planAndroid6.6Free plan - 23
CallWall
CallWall is a free iOS app that uses a community-powered database to block spam calls and filter spam texts.
Free planiOS6.5Free plan - 24
HangUp
HangUp is a free standalone Android app from NordVPN that checks unknown calls in real time and screens incoming texts for threats.
Free planAndroid6.5Free plan - 25
DeepPurge
DeepPurge is a free Windows uninstaller and cleanup toolkit for reviewing installed software, tracing leftovers, and keeping track of recovery options before changes.
LinuxmacOSWindows6.5
Choosing well
Check Android support first
Android is a listed platform for this category, but support can differ by product. Confirm the app works on your Xiaomi, Redmi or POCO phone before signing up.
If Android is not your target, compare the listed iOS, web, API, macOS or self-hosted option instead.
Compare free plans and trials
A free plan is offered by products in this category. Pricing notes can also show a free trial, such as the seven-day trials listed for Getcontact, Whoscall and RoboKiller.
Should I Answer? lists a 30-day trial. Check the provider's current terms before a trial starts.
Match the platform to your setup
Choose an Android or iOS app for a phone, a web service for browser access, an API for integration, or a macOS or self-hosted option when those fit your setup.
YouMail, PhoneBlock and Callfilter.app are examples to compare by their published platform details rather than by name alone.
Look for open-source code
Callfilter.app is listed as open source. If readable code or self-hosting matters, check the licence and deployment details before choosing a tool.
Questions people ask
Do these call blocker tools support Android?
Android is a listed platform for this category, but support can differ by product. Check the product's platform details before installing.
Are free plans available?
Yes. Products in this category offer free plans, with freemium and free pricing models shown in their published notes.
Which other platforms are covered?
The category covers iOS, web, API, macOS and self-hosted platforms alongside Android.
Do any options offer trials?
Trial terms vary. Getcontact, Whoscall, Hiya Spam Blocker and RoboKiller list seven-day trials; Should I Answer? lists 30 days.
Is open-source software available?
Callfilter.app is listed as open source. Check its licence and hosting details if those affect your choice.