NumBuster vs YouMail

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.

YouMail combines call protection, privacy tools, and visual voicemail for Android, iOS, and the web. It is intended to block robocalls and scammers and help keep a phone number private. Visual voicemail transcribes messages to text and is accessible on mobile and desktop. The Free plan costs nothing and includes 50 cloud messages, 100 voicemail-to-text transcriptions per month, and unlimited known-spammer blocking. Paid personal plans include unlimited call screening; the Free plan does not list that feature. For business use, Complete and Ultimate list virtual numbers and tools such as auto attendant, extensions, conference call recording, and business messaging. YouMail also lists voicemail notifications or transfers to Slack, Asana, Dropbox, Google Drive, and Trello. The company says it encrypts data at rest and in transit and describes vulnerability scans, code reviews, and third-party security audits and penetration tests in its development process. It works with major carriers including AT&T, T-Mobile, Verizon, Ting, and Mint.