Corta Spam

What Corta Spam is

Corta Spam screens incoming calls on Android using rules you set before the phone rings. Depending on the matching rule, a call can be allowed, blocked, or answered with a greeting. Rules can cover specific allowed or blocked numbers, wildcard patterns, country codes, quiet hours, repeat callers, and the app’s own spam list. The call log identifies the rule behind each decision, while blocked-call statistics summarize activity by day, week, and month, calculated from local midnight.

You can make a manual JSON backup and inspect it before sharing. An optional experimental auto-responder answers blocked calls with a greeting you provide. The maker says the app declares no internet permission and opts out of Android automatic backup, keeping call logs on the device. Corta Spam lists Spanish, English, Brazilian Portuguese, and Hindi, and its project is open source under the MIT License. The maker says the Android APK builds; an iOS shell also builds and runs, but call blocking there is still pending a CallDirectory extension. The maker’s specification says iOS cannot support action-based blocking at call time or the scripted auto-responder. The Free plan costs nothing, with no ads or in-app purchases.

Who it suits

Corta Spam suits Android users who want incoming calls screened according to personal rules, with a log showing why each call was handled. It may also suit users who value local call logs, manual backups, and an open-source project.

Limits

The Free plan costs nothing and includes no ads or in-app purchases. On iOS, call blocking is pending a CallDirectory extension, and the specification rules out action-based blocking at call time and the scripted auto-responder.

Getting started

1. Visit the project’s GitHub repository.
2. Use the Android app; the repository says its APK builds.
3. Set allowed or blocked numbers, wildcard patterns, country codes, quiet hours, repeat-caller handling, or spam-list rules.
4. Review the call log to see which rule determined each call decision.
5. Optionally configure a greeting for the experimental auto-responder or create a manual JSON backup.

Verdict

Choose Corta Spam if you use Android and want configurable call screening with logs and blocked-call statistics. Look elsewhere if you need iOS call blocking or an iOS scripted auto-responder, which the maker’s specification does not support.