Kalendarz PL
v5.5.2 · 13.3 MB · code 5502
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File information
UpdatedDec 12, 2025
PublishedDec 3, 2021
Packagesk.alteris.app.kalendarpl
Versionv5.5.2 (5502)
Size13.3 MB
MD50c6d596de911cca0c1a681368877b98e
Min SDK23
Malware scanTRUSTED
Signature SHA1EB:45:BA:FB:19:3A:AE:0D:1B:4B:07:89:E1:CD:30:78:54:87:3D:A4
SignerCN=Alteris App, OU=Android, O=Alteris, C=SK
Total downloads100,000
This version100,000
DeveloperAlteris
Age ratingEveryone
What's new in v5.5.2
Dni wolne od pracy w Polsce do końca 2026 roku.
Ważność ferii szkolnych: koniec roku szkolnego 2024/2025.
Ważność ferii szkolnych: koniec roku szkolnego 2024/2025.
Security scan
TRUSTED
- Developer signature verified 2025-12-12
- Signature SHA1 EB:45:BA:FB:19:3A:AE:0D:1B:4B:07:89:E1:CD:30:78:54:87:3D:A4
- File MD5 0c6d596de911cca0c1a681368877b98e
How to install Kalendarz PL v5.5.2 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 13.3 MB of free storage.
- Grab sk.alteris.app.kalendarpl_5502.apk — hit the Download button above (13.3 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 0c6d596de911cca0…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find sk.alteris.app.kalendarpl_5502.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=Alteris App, OU=Android, O=Alteris, C=SK. 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 Kalendarz PL — tap Open on the install screen, or find the Kalendarz PL icon in your app drawer.
Common install errors for Kalendarz PL
- "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 6.0 Marshmallow 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.