CallApp is described as 'Free Caller ID and Call Blocker app that allows mobile users to block phone calls, identify telemarketing calls, record phone calls, blacklist unwanted callers and much more' and is a unwanted call blocker in the security & privacy category. There are more than 25 alternatives to CallApp for a variety of platforms, including Android, iPhone, Web-based, F-Droid and Android Tablet apps. The best CallApp alternative is SpamBlocker, which is both free and Open Source. Other great apps like CallApp are Yet Another Call Blocker, Truecaller, Sereniphone and Silence: Block Unknown Callers.
Efficiently blocks unwanted calls and SMS on Android without replacing your default app. Utilizes regex rules, contact filtering, STIR attestation, repeated call checks, dialed number, recently used apps, and a time schedule for precise, customizable protection.
A free and open source application that can block unwanted calls or warn about probable intentions of callers using a third-party crowdsourced phone number database (from some other proprietary app).
Find a person by a name or phone number worldwide for free using Truecaller. Also available on Android, iPhone, Nokia Symbian and Blackberry.
Block unwanted calls, spam, fraud, and robocalls effortlessly. Enjoy privacy protection as Sereniphone respects your data, has no ads, and provides customizable caller ID labels. Premium options offer 24/7 updates and unlimited blocking for more convenience.
This application both blocks unwanted calls and SMS, and helps manage a blacklist. Easy and lightweight, it does not consume any of your device's battery power.
Should I Answer is free mobile security application protecting you against unsolicited, expensive, unwanted or unknown calls.
Caller ID, phone number tracker, call blocker, contacts location, works offline
Phone 2 Location is the best caller Id & tracker which allows to search, track and block any mobile number or fixed line (landline) phone number.
Orange Phone is a free application that allows you to detect and block unwanted calls, identify unknown numbers (reverse directory), check call prices to premium-rate numbers, and much more.
Sync.ME is the premier social caller id and contact management app, allowing you to identify the name and photo of nearly every caller and even link to their social network profile.
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