NumBuster vs Should I Answer?

NumBuster identifies unknown callers and helps users screen phone fraud, spam, and unwanted messages. Its Android app can display caller information during a call and check numbers from the call log. The iPhone app also provides caller information on the call screen and call-log checks, and can block phone numbers. The homepage describes an anti-spam SMS client for Android, while a web app provides phone-number checks and help categories covering free and paid features.

Users can review and rate numbers, contributing community information that may help others assess potential threats. NumBuster says telephone-number information comes from registered users’ activity, not a purchased subscriber directory. A free mobile app is available alongside LIGHT, SMART, and PRO+ subscriptions, whose features vary. Depending on the tier, paid features include removing ads, page access blocking, AI reports, additional page cards, anonymous checks, visitor identification, and more monthly checks. The privacy policy describes safeguards including encryption, access controls, monitoring, backups, and vulnerability management. Non-users can submit privacy and deletion requests through supported website mechanisms without installing the app or creating an account. Feature availability can vary by country, operating system, app version, device, provider, platform capability, or legal circumstances. The terms say the service and mobile apps are not intended for residents of the EU, Bahrain, or the UAE.

Should I Answer? is a community-based service and mobile app for identifying and guarding against unwanted calls, telemarketing, and expensive outgoing calls. Its database combines community reviews with phone number ratings and is refreshed daily. On Android, the app can check a locally stored database without an internet connection and can optionally block unwanted calls automatically. The maker warns that automatic blocking may not work on every phone model. On iOS, number ratings appear in CallerID during calls or in Call History through the call blocking and identification extension. The service is also available on the web and as an extension. The Android app requires Android 4.1 or higher; Android 6 and newer require permissions for contacts, call information, and drawing over other apps. The Android manual says the local database stores phone numbers and statistics, while user reviews can be downloaded from the web service. The Android plan is free. An iOS automatic database updates plan has no listed price and includes a one-month trial period and free phone number information search.