USMLE Biostatistics
v1.5.1 · 12.5 MB · code 14
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File information
UpdatedJun 8, 2020
PublishedJun 8, 2020
Packagecom.ollytreeapplications.epistats
Versionv1.5.1 (14)
Size12.5 MB
MD56bc7fe285455e02e1b72cee284b26d3f
Min SDK15
Malware scanUNKNOWN
Signature SHA142:7D:A2:6D:B9:BF:6E:24:1B:C7:68:FE:0F:58:89:FB:F5:06:76:A1
SignerCN=Donny Cosic, OU=Owner, O=Olly Tree Applications, L=Toronto, ST=Ontario, C=CA
Total downloads1,000
This version1,000
DeveloperOlly Tree Applications
Age ratingEveryone
What's new in v1.5.1
Minor improvements
Security scan
UNKNOWN
- Developer signature verified 2020-06-08
- Scanned for malware 2021-01-14 08:16:05
- Signature SHA1 42:7D:A2:6D:B9:BF:6E:24:1B:C7:68:FE:0F:58:89:FB:F5:06:76:A1
- File MD5 6bc7fe285455e02e1b72cee284b26d3f
How to install USMLE Biostatistics v1.5.1 on Android API 15+
Takes about 2 minutes. You'll need roughly 12.5 MB of free storage.
- Grab com.ollytreeapplications.epistats_14.apk — hit the Download button above (12.5 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 6bc7fe285455e02e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.ollytreeapplications.epistats_14.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=Donny Cosic, OU=Owner, O=Olly Tree Applications, L=Toronto, ST=Ontario, C=CA. 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 UNKNOWN).
- Done — open USMLE Biostatistics — tap Open on the install screen, or find the USMLE Biostatistics icon in your app drawer.
Common install errors for USMLE Biostatistics
- "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 15 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.