Doomsday Calculator
v1.20 · 2.8 MB · code 20
Verify you're human
Solve this to start the download.
File information
UpdatedSep 5, 2025
PublishedFeb 22, 2020
Packagedenik.doomsday.defence
Versionv1.20 (20)
Size2.8 MB
MD55392f26930ac3a7b52d17ddf2dd08bf3
Min SDK15
Malware scanTRUSTED
Signature SHA1BC:89:68:C9:49:9F:5F:0C:E8:FB:FD:75:C5:D2:FF:F5:75:8D:B9:77
SignerCN=Yuri, O=Denisenko, C=RF
Total downloads100
This version100
DeveloperYury Denisenko
Age ratingEveryone
What's new in v1.20
Removed ads from the application
Security scan
TRUSTED
- Developer signature verified 2020-02-22
- Scanned for malware 2020-09-08 03:07:57
- Signature SHA1 BC:89:68:C9:49:9F:5F:0C:E8:FB:FD:75:C5:D2:FF:F5:75:8D:B9:77
- File MD5 5392f26930ac3a7b52d17ddf2dd08bf3
How to install Doomsday Calculator v1.20 on Android API 15+
Takes about 2 minutes. You'll need roughly 2.8 MB of free storage.
- Grab denik.doomsday.defence_20.apk — hit the Download button above (2.8 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 5392f26930ac3a7b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find denik.doomsday.defence_20.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=Yuri, O=Denisenko, C=RF. 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 Doomsday Calculator — tap Open on the install screen, or find the Doomsday Calculator icon in your app drawer.
Common install errors for Doomsday Calculator
- "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.