CallWatch - Boost is a free Android application designed to enhance security in your communication by blocking unwanted calls. It offers features such as blocking known scammers, customizing protection levels, and providing caller identification. Users can also file complaints against abusive telemarketers and unlawful debt collectors directly through the app, ensuring a safer calling experience. The app collects user phone numbers and call information strictly for analytical purposes and to improve service functionality while maintaining user privacy.

The application provides a premium service trial for 7 days, allowing users to experience custom call protection and additional features like caller number lookup. After the trial, basic protection remains free, offering automatic blocking of known scammers. For those seeking more comprehensive features, a subscription is available at an affordable rate of $2 per month. CallWatch prioritizes user privacy, ensuring personal contact lists are never shared or sold.