Roman Numerals
v1.0.0 · 2.4 MB · code 1
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File information
UpdatedOct 29, 2024
PublishedDec 12, 2019
Packagecom.techjambo.romannumbers.activity
Versionv1.0.0 (1)
Size2.4 MB
MD521199559bdea259ded6f7b1559e3b84d
Min SDK8
Malware scanTRUSTED
Signature SHA19E:14:52:81:B3:F7:5D:C5:EF:28:41:65:5B:04:31:24:75:AE:22:F2
SignerCN=Jos? Costa, OU=Techjambo
Total downloads93
This version93
DeveloperJosé Costa
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2020-01-16
- Scanned for malware 2020-10-28 00:02:21
- Signature SHA1 9E:14:52:81:B3:F7:5D:C5:EF:28:41:65:5B:04:31:24:75:AE:22:F2
- File MD5 21199559bdea259ded6f7b1559e3b84d
How to install Roman Numerals v1.0.0 on Android API 8+
Takes about 2 minutes. You'll need roughly 2.4 MB of free storage.
- Grab com.techjambo.romannumbers.activity_1.apk — hit the Download button above (2.4 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 21199559bdea259d…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.techjambo.romannumbers.activity_1.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=Jos? Costa, OU=Techjambo. 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 Roman Numerals — tap Open on the install screen, or find the Roman Numerals icon in your app drawer.
Common install errors for Roman Numerals
- "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 8 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.