1krBlocker is an SMS app for Android that works like a firewall for your text messages: it checks every message on your phone before you see it and keeps scams away from your inbox.
It follows three rules:
- Don't trust. Every message from someone new is checked. People in your contacts get more trust, never blind trust, because their numbers can be misused too.
- Don't open anything by itself. Links are never tappable straight away and attachments never open on their own. You always see where a link really goes first.
- Explain. Every decision has a Why? screen in plain words, so you can judge for yourself.
What happens to a message depends on how risky it looks:
- Safe messages go to Messages as usual.
- Messages with a few warning signs arrive with a warning bar.
- Risky messages go to Quarantine, quietly, without a sound.
- Very likely scams can be blocked automatically (you can still find them under Blocked in quarantine).
Everything is checked on the phone and works offline. The text of your messages, phone numbers and your contacts never leave the phone on their own. Online link checks and Deep check exist, but only when you turn them on or ask for them.
To do this, 1krBlocker has to be your default SMS app: Android only lets that app see messages before they reach you. See "Make 1krBlocker your SMS app".
No filter catches everything. Stay careful with unexpected requests for money, codes or passwords, even when 1krBlocker sees nothing wrong.