At a glance
- Latest version
- v2.40 (40)
- Updated
- Jul 31, 2026 (2 months ago)
- APK size
- 1.9 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Category
- Tools (app)
- Listed since
- Jul 13, 2021 (at least)
- Developer contact
- [email protected]
About this APK
Proportion-RuleOfThree-Percent is an app by Ledon in the Tools category, listed since at least July 2021. It has no native code, so it runs on any Android processor.
Since version 2.25, the APK shrank from 3.5 MB to 1.9 MB.
Description
From the listing uploaded by “appupdater”.
Version history
4 versions are listed, going back to v2.25. Since v2.38 it requires Android 5.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 31, 2026.
- Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified Jul 31, 2026
- Validated against Google Play Jul 31, 2026
- Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- Signing certificate (SHA-1)96:E0:3F:1D:CA:B0:7C:C4:4F:FA:05:F1:49:82:9E:BE:89:48:3E:27
- File MD5f237652224fb8465f02f501207a9611b
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Required hardware & features
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
Proportion-RuleOfThree-Percent APK: questions and answers
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is the Proportion-RuleOfThree-Percent APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is f237652224fb8465f02f501207a9611b.
