Ruler
v2.3 · 4.8 MB · code 3
Verify you're human
Solve this to start the download.
File information
UpdatedDec 12, 2022
PublishedNov 19, 2021
Packagecom.bestapp.ruler
Versionv2.3 (3)
Size4.8 MB
MD59315ca2e076b21273fe7dc06e09308d9
Min SDK16
Malware scanTRUSTED
Signature SHA1C4:29:F1:2F:AE:68:11:C6:1B:84:44:86:EC:31:15:26:41:F9:29:B1
SignerCN=Best App LTD., OU=Best App LTD., O=Best App LTD., L=Hanoi, ST=Hanoi, C=VN
Total downloads50,000
This version50,000
DeveloperHỌC TỐT
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2022-12-12
- Scanned for malware 2022-12-12 22:23:22
- Signature SHA1 C4:29:F1:2F:AE:68:11:C6:1B:84:44:86:EC:31:15:26:41:F9:29:B1
- File MD5 9315ca2e076b21273fe7dc06e09308d9
How to install Ruler v2.3 on Android API 16+
Takes about 2 minutes. You'll need roughly 4.8 MB of free storage.
- Grab com.bestapp.ruler_3.apk — hit the Download button above (4.8 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 9315ca2e076b2127…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.bestapp.ruler_3.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Best App LTD., OU=Best App LTD., O=Best App LTD., L=Hanoi, ST=Hanoi, C=VN. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Ruler — tap Open on the install screen, or find the Ruler icon in your app drawer.
Common install errors for Ruler
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 16 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.