IYPS
IYPS is a free, open-source security app for Android. Evaluate passwords, predict crack times, and get tips for stronger passwords. It has 283 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid.
github.com/StellarSand/IYPS (opens in a new tab)
Data as of from the GitHub API and the F-Droid index; description from the project's repository or F-Droid listing. Report an error
About IYPS
A password strength app that evaluates and rates your password's robustness, estimates crack time, and provides helpful warnings and suggestions for stronger passwords. Features: - Fully open source - Material design 3 & Material You - Completely offline - Supports both light and dark theme - No ads - No collection of personal data
Privacy and F-Droid
F-Droid builds IYPS from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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Is IYPS free and open source?
Yes. IYPS's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install IYPS?
You can install IYPS from F-Droid (package com.iyps); the links are on this page. Its GitHub repository also publishes releases (latest: v1.6.1).
Is IYPS still maintained?
The repository's most recent commit was on Oct 8, 2026. Its F-Droid listing was last updated on Aug 3, 2026. appsgit only lists apps whose repository had a commit in the last six months.