Ruler (Privacy Friendly)
(SECUSO) On the fly measurements with your Smartphone as ruler or protractor.
- Developer
- SECUSO - Security Usability Society
- License
- GPL-3.0-only
- Package
org.secuso.privacyfriendlyruler- Category
- Multimedia
- Latest version
- 1.1.4 · Jul 21, 2025
- Minimum Android
- Android 4.2
Screenshots
Description
Privacy Friendly Ruler can display a ruler or protractor at the edge of the display. This enables on the fly measurements with the smartphone. It belongs to the Privacy Friendly Apps group developed by the research group SECUSO at Karlsruhe Institute of Technology. More information can be found an secuso.org/pfa/
What makes Privacy Friendly Ruler different from other similar apps?
1. No permissions
Privacy Friendly Ruler does not require any permissions.
2. No advertisement
Many other free apps in the Google Play Store dazzle annoying advertising and also shortens battery life.
Feel free to contact us via:
Bluesky - @secusoresearch.bsky.social https://bsky.app/profile/secusoresearch.bsky.social
Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/
Job opening - https://secuso.aifb.kit.edu/english/Job_Offers.php
What makes Privacy Friendly Ruler different from other similar apps?
1. No permissions
Privacy Friendly Ruler does not require any permissions.
2. No advertisement
Many other free apps in the Google Play Store dazzle annoying advertising and also shortens battery life.
Feel free to contact us via:
Bluesky - @secusoresearch.bsky.social https://bsky.app/profile/secusoresearch.bsky.social
Mastodon - @SECUSO_Research@bawü.social https://xn--baw-joa.social/@SECUSO_Research/
Job opening - https://secuso.aifb.kit.edu/english/Job_Offers.php
All versions
| Version | Released | Minimum Android | Size |
|---|---|---|---|
| 1.1.4 | Jul 21, 2025 | Android 4.2 | 6.1 MB |
| 1.1.3 | Apr 25, 2025 | Android 4.2 | 4.5 MB |
| 1.1.2 | Jan 6, 2025 | Android 4.2 | 2.8 MB |
| 1.1.1 | Oct 7, 2024 | Android 4.2 | 2.2 MB |
| 1.1 | Dec 23, 2016 | Android 4.2 | 1.8 MB |
| 1.0.1 | Dec 21, 2016 | Android 4.2 | 1.7 MB |
| 1.0 | Dec 14, 2016 | Android 4.2 | 1.8 MB |
How to install an older version of an Android app · How to install an APK file on Android
From the developer (GitHub)
APK files published by the developer on GitHub. They are signed by the developer and may not install over the other builds on this page (different signature). Links open github.com.
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