Rotation Calendar
vv3.8 · 5.9 MB · code 37
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File information
UpdatedMar 14, 2026
PublishedSep 14, 2020
Packageme.mustaapps.rotationcalendar
Versionvv3.8 (37)
Size5.9 MB
MD5ed0834a27fc31afe3afb7737f0bed177
Min SDK21
Malware scanTRUSTED
Signature SHA12B:DD:85:9C:53:B0:65:34:24:42:1C:50:48:5B:8A:AF:DA:E2:D2:2A
SignerCN=Mustafa Radhi, OU=Development, O=MustaApps, L=Saddat al Hindiyah, ST=Babylon, C=IQ
Total downloads100
This version100
DeveloperMustafa.R Mahdi
Age ratingEveryone
What's new in vv3.8
- fix bugs that occur during the viewing main / month work days / rest days
- update internal functionality for better performance
- update internal functionality for better performance
Security scan
TRUSTED
- Developer signature verified 2025-03-30
- Signature SHA1 2B:DD:85:9C:53:B0:65:34:24:42:1C:50:48:5B:8A:AF:DA:E2:D2:2A
- File MD5 ed0834a27fc31afe3afb7737f0bed177
How to install Rotation Calendar vv3.8 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 5.9 MB of free storage.
- Grab me.mustaapps.rotationcalendar_37.apk — hit the Download button above (5.9 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 ed0834a27fc31afe…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find me.mustaapps.rotationcalendar_37.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=Mustafa Radhi, OU=Development, O=MustaApps, L=Saddat al Hindiyah, ST=Babylon, C=IQ. 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 Rotation Calendar — tap Open on the install screen, or find the Rotation Calendar icon in your app drawer.
Common install errors for Rotation Calendar
- "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 5.0 Lollipop 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.