Black Board
v1.1.3 · 37.6 MB · code 19
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File information
UpdatedOct 10, 2025
PublishedJan 15, 2023
Packagecom.purplecap.blackboard
Versionv1.1.3 (19)
Size37.6 MB
MD5c7699caf571f889eedda3b2424578bb1
Min SDK22
ABIsarmeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA109:4E:0F:80:E3:68:08:82:82:81:F9:08:AD:C3:87:B3:B0:44:91:BA
SignerCN=purple cap, OU=purplecap development, O=purplecap, L=neemuch, ST=mp, C=in
Total downloads100,000
This version100,000
DeveloperPurpleCap Software
Age ratingEveryone
What's new in v1.1.3
+ Add color picker button
Security scan
TRUSTED
- Developer signature verified 2025-10-10
- Signature SHA1 09:4E:0F:80:E3:68:08:82:82:81:F9:08:AD:C3:87:B3:B0:44:91:BA
- File MD5 c7699caf571f889eedda3b2424578bb1
How to install Black Board v1.1.3 on Android 5.1 Lollipop+
Takes about 2 minutes. You'll need roughly 37.6 MB of free storage.
- Grab com.purplecap.blackboard_19.apk — hit the Download button above (37.6 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 c7699caf571f889e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.purplecap.blackboard_19.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=purple cap, OU=purplecap development, O=purplecap, L=neemuch, ST=mp, C=in. 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 Black Board — tap Open on the install screen, or find the Black Board icon in your app drawer (this build targets armeabi-v7a/arm64-v8a devices).
Common install errors for Black Board
- "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.
- Works on one phone but not another — this build ships armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.