Guardian Wall: the app that blocks spam calls and fraudulent SMS, 100% locally

Robocalls, telemarketing spam, and phishing texts have become a real plague. I built Guardian Wall to stop it, right from your pocket.

What the app does: automatic blocking of unwanted calls using a database of over 84,000 malicious numbers and domains updated in real time, smart SMS filtering with automatic quarantine of phishing links, and a personal blacklist you can manage in seconds.

Why local matters: unlike many security apps that send your data to remote servers, Guardian Wall never uploads your contacts anywhere. It only uses Android's VpnService API to filter malicious DNS requests, entirely on your device.

Free on the Play Store.

Play Store: https://play.google.com/store/apps/details?id=com.zerospam.app&hl=fr

Website: https://guardian-wall.netlify.app/

I'm the solo developer behind this project and I'd love your feedback: what's your worst robocall/spam story, and what would make you try an app like this?