My.CIS
v2.0.21 · 10.6 MB · code 200210
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File information
UpdatedFeb 12, 2026
PublishedMar 17, 2021
Packageschoolapp.canadian.international.school
Versionv2.0.21 (200210)
Size10.6 MB
MD59545085e34e6b9f6afd1fc002c373250
Min SDK22
Malware scanTRUSTED
Signature SHA195:E2:5E:F8:87:71:65:38:1E:90:75:3B:04:0B:43:E0:58:73:CB:6D
SignerCN=Digistorm Education, OU=Mobile Development, O=Canadian International School, L=Tanjong Katong Rd, ST=Singapore, C=SG
Total downloads1,000
This version1,000
DeveloperCanadian International School Pte. Ltd.
Age ratingEveryone
What's new in v2.0.21
Digistorm is constantly working to improve your app. This update includes a number of general improvements to functionality including bug fixes and performance improvements.
Security scan
TRUSTED
- Developer signature verified 2026-02-12
- Signature SHA1 95:E2:5E:F8:87:71:65:38:1E:90:75:3B:04:0B:43:E0:58:73:CB:6D
- File MD5 9545085e34e6b9f6afd1fc002c373250
How to install My.CIS v2.0.21 on Android 5.1 Lollipop+
Takes about 2 minutes. You'll need roughly 10.6 MB of free storage.
- Grab schoolapp.canadian.international.school_200210.apk — hit the Download button above (10.6 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 9545085e34e6b9f6…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find schoolapp.canadian.international.school_200210.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=Digistorm Education, OU=Mobile Development, O=Canadian International School, L=Tanjong Katong Rd, ST=Singapore, C=SG. 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.CIS — tap Open on the install screen, or find the My.CIS icon in your app drawer.
Common install errors for My.CIS
- "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 5.1 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.