Open Circle
v2.0 · 25.9 MB · code 8
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File information
UpdatedSep 5, 2025
PublishedAug 13, 2019
Packagecom.eumbricht.opencircle
Versionv2.0 (8)
Size25.9 MB
MD553e733818e17118c2f3380894fd3a69c
Min SDK16
ABIsx86, armeabi-v7a
Malware scanUNKNOWN
Signature SHA130:13:A8:47:65:D0:A5:C2:E6:F3:CB:90:45:93:10:7D:71:1A:83:3D
SignerC=CH, ST=Switzerland, L=Baden, O=e-Umbricht, CN=Andreas Umbricht
Total downloads10
This version10
Developere-Umbricht
Age ratingEveryone
What's new in v2.0
Improved performance.
Added leaderboard.
Added leaderboard.
Security scan
UNKNOWN
- Developer signature verified 2018-01-07
- Signature SHA1 30:13:A8:47:65:D0:A5:C2:E6:F3:CB:90:45:93:10:7D:71:1A:83:3D
- File MD5 53e733818e17118c2f3380894fd3a69c
How to install Open Circle v2.0 on Android API 16+
Takes about 2 minutes. You'll need roughly 25.9 MB of free storage.
- Grab com.eumbricht.opencircle_8.apk — hit the Download button above (25.9 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 53e733818e17118c…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.eumbricht.opencircle_8.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 C=CH, ST=Switzerland, L=Baden, O=e-Umbricht, CN=Andreas Umbricht. 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 Open Circle — tap Open on the install screen, or find the Open Circle icon in your app drawer (this build targets x86/armeabi-v7a devices).
Common install errors for Open Circle
- "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 16 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/armeabi-v7a native code. Devices with a different CPU will reject it.