Ruler v2.1.4
APK · 2.3 MB · version code 214 · Android 4.0.3+ · uploaded Jan 29, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v2.1.7, uploaded Sep 2, 2026 — about 7 months after this one.
- Size: this file is 2.3 MB; the latest is 2.3 MB (6.5 KB smaller).
File information
- Version
- v2.1.4 (214)
- Uploaded
- Jan 29, 2026
- Size
- 2.3 MB
- Requires
- Android 4.0.3+ (API 15)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 596c8559bc70009ab2c68b2a30f038ee
- Signing certificate (SHA-1)
- 96:05:48:80:22:87:15:AC:B6:81:3A:2A:78:A2:60:C9:FC:34:36:0C
- Signed by
- CN=Babak Mozaffari, OU=Unknown, O=Metaworld Solutions, L=Los Angeles, ST=CA, C=US
- File name
- com-metaworldsolutions-android-ruler-214-73348365-596c8559bc70009ab2c68b2a30f038ee.apk
- Package
- com.metaworldsolutions.android.ruler
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v2.1.4
Android 10 support
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jan 29, 2026.
- Certificate issued to “Metaworld Solutions” This is the certificate of the Google Play version.
- Same certificate as the other version checked
Store checks
- Developer signature verified Jan 29, 2026
- Validated against Google Play Jan 29, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself.
How to install Ruler on Android 4.0.3+
You'll need about 4.6 MB of free space.
- Download the APK — tap Download APK above (2.3 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-metaworldsolutions-android-ruler-214-73348365-596c8559bc70009ab2c68b2a30f038ee.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 596c8559bc70009ab2c68b2a30f038ee. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Ruler — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.0.3+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.