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Who Called
Paris, France
What it is
Who Called filters unwanted calls using an official telemarketer prefix list and community reports. Its Android and iOS apps offer call filtering, and its website lets people check an unknown number’s reputation and submit a report. On Android, risky numbers can be blocked before the phone rings, while uncertain numbers may ring with a warning. Reports can be submitted anonymously without an account. An optional SMS shield hides notifications from unwanted messages without storing or transmitting their content. The maker says the apps have no account, advertising or third-party trackers, and that user data is not sold or shared. Blocking rules, settings and the local call-filter log remain on the device and are removed when the app is uninstalled. Number lookups and voluntary reports send information to the service; lookup requests are not stored, and reports are retained for at most 365 days. The maker says its API is hosted in the European Union and traffic is encrypted using HTTPS/TLS. The service is independent and is not affiliated with ARCEP or any government entity; it is provided as is, without a guarantee of results. Support is available by email in French or English, with a usual reply time of 48 business hours. The apps also include two mini-games, DEFENSE and TRACE, with an anonymous daily leaderboard. The maker describes the app as open source and links to a public source-code repository. The service is free.
For and against
For
- Uses an official telemarketer prefix list and community reports.
- Android can block risky numbers before the phone rings.
- Optional SMS shield hides unwanted-message notifications.
- Reports can be submitted anonymously without an account.
- Apps are available for Android and iOS.
Against
- The maker does not guarantee results.
- Lookup requests and voluntary reports send information to the service.
- Reports may be retained for up to 365 days.
- Support replies usually take 48 business hours.
The verdict
Who Called offers free call filtering, number lookups and optional SMS notification filtering. Keep in mind that the maker provides no guarantee of results and that lookups and reports send information to the service.
Who it suits
Who Called may suit people who want unwanted-call filtering on Android or iOS, or a website for checking and reporting unknown numbers. It also suits people who want an optional SMS shield or anonymous reporting.
Plans and prices
Free
Free app; no paid tiers stated
Read 8 Oct 2026 · who-called.com
On the record
- Additional features
- The apps include two mini-games, DEFENSE and TRACE, with an anonymous daily leaderboard.who-called.com · read 8 Oct 2026
- Call blocking
- On Android, risky numbers can be blocked before the phone rings; uncertain numbers can ring with a warning.who-called.com · read 8 Oct 2026
- Community reports
- People can report numbers anonymously without an account, and the maker says reports help protect the community.who-called.com · read 8 Oct 2026
- Data handling
- Voluntary number reports and number lookups send information to the service; lookup requests are not stored, and reports are retained for at most 365 days.who-called.com · read 8 Oct 2026
- Hosting and encryption
- The maker says its API is hosted in the European Union and traffic is encrypted using HTTPS/TLS.who-called.com · read 8 Oct 2026
- Limitations
- The maker says the service is independent and not affiliated with ARCEP or any government entity; the app is provided as is with no guarantee of results.who-called.com · read 8 Oct 2026
- Number lookup
- The service lets people check an unknown number’s reputation and report it.who-called.com · read 8 Oct 2026
- On-device data
- Personal blocking rules, settings, and the local call-filter log stay on the device and are removed when the app is uninstalled.who-called.com · read 8 Oct 2026
- Open source
- The maker describes the app as open source and links to its public source-code repository.who-called.com · read 8 Oct 2026
- Privacy
- The maker says the apps have no account, ads, third-party trackers, or sale or sharing of user data.who-called.com · read 8 Oct 2026
- Purpose
- Who Called filters unwanted calls using an official telemarketer prefix list and community reports.who-called.com · read 8 Oct 2026
- SMS filtering
- The app offers an optional SMS shield that hides notifications from unwanted messages without storing or transmitting their content.who-called.com · read 8 Oct 2026
- Support
- Support is available by email in French or English, with a usual reply time of 48 business hours.who-called.com · read 8 Oct 2026
