RBApp
v1.5 · 1.3 MB · code 7
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File information
UpdatedFeb 10, 2020
PublishedDec 6, 2018
Packageappinventor.ai_de_tsang.RBApp
Versionv1.5 (7)
Size1.3 MB
MD52bf113ad3e1138c72e2fcf5c363b57da
Min SDK3
Malware scanTRUSTED
Signature SHA1C6:7D:AF:95:F0:E2:AB:F3:75:54:3B:F4:EF:1C:F8:36:FF:81:1A:9D
SignerCN=Derek Tsang, OU=Derek Tsang, O=Derek Tsang, L=Toronto, ST=ON, C=Canada
Total downloads5,000
This version5,000
DeveloperDerek Tsang
Age ratingEveryone
What's new in v1.5
1.0 (Mar 30, 2012): First release
1.1 (Apr 8, 2012): Permits screen compatibility mode for high resolution screens
1.2 (Jul 22, 2012): Bug fixes for Advanced Mode
1.4 (Apr 7, 2014): Added option for values in cGy and research questionnaire link
1.5 (Mar 5, 2015): Removed research questionnaire link
1.1 (Apr 8, 2012): Permits screen compatibility mode for high resolution screens
1.2 (Jul 22, 2012): Bug fixes for Advanced Mode
1.4 (Apr 7, 2014): Added option for values in cGy and research questionnaire link
1.5 (Mar 5, 2015): Removed research questionnaire link
Security scan
TRUSTED
- Developer signature verified 2020-02-10
- Scanned for malware 2020-11-04 06:05:21
- Signature SHA1 C6:7D:AF:95:F0:E2:AB:F3:75:54:3B:F4:EF:1C:F8:36:FF:81:1A:9D
- File MD5 2bf113ad3e1138c72e2fcf5c363b57da
How to install RBApp v1.5 on Android API 3+
Takes about 2 minutes. You'll need roughly 1.3 MB of free storage.
- Grab appinventor.ai_de_tsang.RBApp_7.apk — hit the Download button above (1.3 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 2bf113ad3e1138c7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find appinventor.ai_de_tsang.RBApp_7.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=Derek Tsang, OU=Derek Tsang, O=Derek Tsang, L=Toronto, ST=ON, C=Canada. 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 RBApp — tap Open on the install screen, or find the RBApp icon in your app drawer.
Common install errors for RBApp
- "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 API 3 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.