Security & Privacy · Open source
PINcredible - Secure PIN vault
Cyb3rKo
Modern and secure Android app to help you remember any PIN
Opens the official F-Droid page
About PINcredible - Secure PIN vault
About
Over time I've used several apps to store my PINs, unfortunately none of them really convinced me.
So here we are now, this is my own implementation of a secure PIN manager.
Features
🔢 PIN obfuscation 🔐 Local Encryption 🎨 Modern Design 🌐 No Internet Connection required 🎞️ No Ads 🗿 No Suspicious Permissions
The app obfuscates the PIN in a table layout surrounded by secure random numbers.
This brings two security benefits:
1. ❔ The app can not know where in the pattern the user given PIN is located at. Attackers can not extract the plaintext PIN.
2. 🕵️ This offers protection against Shoulder Surfing , for example while accessing your PIN in a super market or a bank.
Security Aspects
For technical details about the implemented security take a look at the GitHub repo readme .
Used Icons
Color-blindness-test icons created by Freepik - Flaticon
Grid icons created by prettycons - Flaticon
Random icons created by Uniconlabs - Flaticon
How to install PINcredible - Secure PIN vault
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open PINcredible - Secure PIN vault from your app drawer.


