My Lesson Schedules
v42.0 · 8.7 MB · code 42
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File information
UpdatedJan 6, 2026
PublishedApr 24, 2021
Packagecom.creanet.dersprogramim
Versionv42.0 (42)
Size8.7 MB
MD587929ee9c581e6c7d10325d2f7524686
Min SDK21
Malware scanTRUSTED
Signature SHA171:A5:E5:16:24:52:4F:3E:F9:29:17:78:B2:BB:39:70:9F:C2:A5:4F
SignerCN=Creanet
Total downloads100,000
This version100,000
DeveloperSchoolMaster B.V.
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2026-01-06
- Signature SHA1 71:A5:E5:16:24:52:4F:3E:F9:29:17:78:B2:BB:39:70:9F:C2:A5:4F
- File MD5 87929ee9c581e6c7d10325d2f7524686
How to install My Lesson Schedules v42.0 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 8.7 MB of free storage.
- Grab com.creanet.dersprogramim_42.apk — hit the Download button above (8.7 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 87929ee9c581e6c7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.creanet.dersprogramim_42.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=Creanet. 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 My Lesson Schedules — tap Open on the install screen, or find the My Lesson Schedules icon in your app drawer.
Common install errors for My Lesson Schedules
- "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.