PhoneBlock
7.3#10 in call blocker appsFree planFree planAndroidiOSWebAPI
VisitPhoneBlock suits people seeking call screening on Android, landline setups, or phone systems that can use a blocklist or API. iPhone users should note that the documented setup relies on CardDAV rather than a native app.
Whoscall suits Android and iOS users who want caller identification, spam blocking, and checks for potentially risky numbers or links. Businesses can apply to display a verified company name and logo on caller ID.