Project Cards
v1.83 · 21.4 MB · code 43
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File information
UpdatedJan 18, 2026
PublishedOct 21, 2020
Packageru.cards.goat
Versionv1.83 (43)
Size21.4 MB
MD5a556b9cb787a83bb3b2aa55a58096935
Min SDK21
Malware scanTRUSTED
Signature SHA14B:58:33:19:CB:47:69:4B:51:17:9B:D1:7E:94:1A:CC:E1:17:77:94
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads100,000
This version100,000
DeveloperМеханик mobile
Age ratingEveryone
What's new in v1.83
1.83
Security scan
TRUSTED
- Developer signature verified 2026-01-18
- Signature SHA1 4B:58:33:19:CB:47:69:4B:51:17:9B:D1:7E:94:1A:CC:E1:17:77:94
- File MD5 a556b9cb787a83bb3b2aa55a58096935
How to install Project Cards v1.83 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 21.4 MB of free storage.
- Grab ru.cards.goat_43.apk — hit the Download button above (21.4 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 a556b9cb787a83bb…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find ru.cards.goat_43.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=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. 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 Project Cards — tap Open on the install screen, or find the Project Cards icon in your app drawer.
Common install errors for Project Cards
- "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 5.0 Lollipop 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.