Modern and secure Android app to help you remember any PIN
About this app
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
Licensed under Apache-2.0, by Cyb3rKo.
What's New in v1.0.1
Imported from the F-Droid repository index.
Version history
May 2, 2025 · 3.4 MB · Android API 23–35 · code 14
Imported from the F-Droid repository index.
SHA-256 69fedb4fcc538e40a73d6117a1e01a83d81fbdaf578e8c2f13329079a0f14300
Will it run on your device?
92%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
- Aligned with the latest Android target SDK expectations.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be de.cyb3rko.pincredible is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
No earlier build is on record for PINcredible - Secure PIN vault, so there is nothing to roll back to yet. When a second version is published, this section will explain how to move between them safely.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of PINcredible - Secure PIN vault, and a listing is removed when the evidence for it stops holding up.
Get PINcredible - Secure PIN vault
Every source we list for de.cyb3rko.pincredible is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
69fedb4fcc538e40a73d6117a1e01a83d81fbdaf578e8c2f13329079a0f14300
Signing certificate
771566403823382c74274efb33d1f2725b9e4e678b6b2faf3bcea9fee8f2a95e
Permissions Required
Previous Versions
No earlier build is on record — this is the first release we have listed.
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
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