Simple Android Cryptography Toolkit
About this app
CryptX is a student-driven project developed as part of an exploration into information security concepts. The application focuses on implementing encryption and steganography techniques, serving as a hands-on experiment with secure data handling. Built during academic studies in Information Technology, it showcases foundational knowledge in cryptography and secure communication practices.
Licensed under MIT, by PersonX.
What's New in v1.4.1
Imported from the F-Droid repository index.
Version history
Sep 25, 2025 · 33.6 MB · Android API 24–35 · code 10
Imported from the F-Droid repository index.
SHA-256 e60ec21323062273faffb3668f410005f10a767ce9c4cb3ac519d6d85e6bb723
Sep 3, 2025 · 33.6 MB · Android API 24–35 · code 9
Imported from the F-Droid repository index.
SHA-256 0c1ba8624eadb45babea4436a91fba9ea3bd72cdf08a92fc77d0142a0ae8c160
Jul 24, 2025 · 33.5 MB · Android API 24–35 · code 8
Imported from the F-Droid repository index.
SHA-256 6db0380eda5914856579cf77a5b290318735bf838827dcaf9aa6fa09206e5a5a
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 com.personx.cryptx 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
If the current release misbehaves, 1.4.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall CryptX first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
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 CryptX, and a listing is removed when the evidence for it stops holding up.
Get CryptX
Every source we list for com.personx.cryptx 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
e60ec21323062273faffb3668f410005f10a767ce9c4cb3ac519d6d85e6bb723
Signing certificate
2acbc0ae29d5c57882e5883e22b8f61693f4cff323b42c79c549a25fa7962a2b
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.