Groot – Open-source spam call blocking for iOS

Summary: Groot is an open-source iOS app that blocks spam calls entirely on-device without data collection or cloud use. It allows users to block specific numbers, entire regions, or patterns while whitelisting trusted contacts, preserving privacy and control.

What it does

Groot blocks unwanted calls by letting users add numbers, countries, or patterns to block lists and whitelist contacts. It runs fully on the device, ensuring no call data leaves the phone and provides a blocked call history for review.

Who it's for

It is designed for iOS users seeking a privacy-focused, customizable spam call blocker without relying on cloud services or data sharing.

Why it matters

Groot addresses privacy concerns by eliminating data transmission and offers granular control over spam blocking to reduce interruptions from unwanted calls.