World Citizen: Geography quiz
v3.1.7 · 4.3 MB · code 41
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File information
UpdatedMay 20, 2020
PublishedMay 20, 2020
Packagelammar.flags
Versionv3.1.7 (41)
Size4.3 MB
MD5b2c8499b8d2a88cc38c8841027d7c1f7
Min SDK10
Malware scanTRUSTED
Signature SHA11F:9F:15:75:B7:AA:68:7A:3F:93:33:AF:E7:F2:08:A1:1D:CE:B7:90
SignerCN=Marcin Lament, OU=lammarApps, L=London, C=UK
Total downloads100,000
This version100,000
Developerlammar
Age ratingEveryone
What's new in v3.1.7
- Added In-App purchase option to remove ads
- Minor bug fixes
- Minor bug fixes
Security scan
TRUSTED
- Developer signature verified 2021-11-12
- Scanned for malware 2020-09-15 13:05:50
- Signature SHA1 1F:9F:15:75:B7:AA:68:7A:3F:93:33:AF:E7:F2:08:A1:1D:CE:B7:90
- File MD5 b2c8499b8d2a88cc38c8841027d7c1f7
How to install World Citizen: Geography quiz v3.1.7 on Android API 10+
Takes about 2 minutes. You'll need roughly 4.3 MB of free storage.
- Grab lammar.flags_41.apk — hit the Download button above (4.3 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 b2c8499b8d2a88cc…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find lammar.flags_41.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=Marcin Lament, OU=lammarApps, L=London, C=UK. 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 World Citizen: Geography quiz — tap Open on the install screen, or find the World Citizen: Geography quiz icon in your app drawer.
Common install errors for World Citizen: Geography quiz
- "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 10 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.