Opp App
v3.1.3 · 75.1 MB · code 450000
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File information
UpdatedFeb 24, 2026
PublishedMar 11, 2021
Packagecom.theoppcompany.com.oppapp
Versionv3.1.3 (450000)
Size75.1 MB
MD557ae490c3f11c534da5977a887501577
Min SDK23
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1D3:A1:3B:28:93:58:0B:20:84:CA:D6:E0:D6:92:C8:19:A1:89:F2:A4
SignerCN=Wouter de Boer, OU=TheOppCompany, O=TheOppCompany, L=Prinsenbeek, ST=NB, C=NL
Total downloads10,000
This version10,000
DeveloperLets Opp BV
Age ratingEveryone
What's new in v3.1.3
The new version of the Opp App contains updates to support new Android software.
Security scan
TRUSTED
- Developer signature verified 2026-02-24
- Signature SHA1 D3:A1:3B:28:93:58:0B:20:84:CA:D6:E0:D6:92:C8:19:A1:89:F2:A4
- File MD5 57ae490c3f11c534da5977a887501577
How to install Opp App v3.1.3 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 75.1 MB of free storage.
- Grab com.theoppcompany.com.oppapp_450000.apk — hit the Download button above (75.1 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 57ae490c3f11c534…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.theoppcompany.com.oppapp_450000.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=Wouter de Boer, OU=TheOppCompany, O=TheOppCompany, L=Prinsenbeek, ST=NB, C=NL. 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 Opp App — tap Open on the install screen, or find the Opp App icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Opp App
- "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.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.