MarsClock
v1.30 · 5.2 MB · code 30
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File information
UpdatedDec 7, 2025
PublishedFeb 23, 2021
Packageorg.scottmaxwell.android.marsclock
Versionv1.30 (30)
Size5.2 MB
MD5aa844334732df022afa2da9dfc67a6be
Min SDK23
Malware scanTRUSTED
Signature SHA167:52:C9:D7:4D:58:BE:97:48:BE:69:A7:88:80:02:89:7D:7A:4F:C1
SignerCN=Scott Maxwell, OU=Top Dude, O=Caerlaverock Software, L=Pasadena, ST=CA, C=US
Total downloads5,000
This version5,000
DeveloperScott Maxwell
Age ratingEveryone
What's new in v1.30
“No functionality changed in this release; just updating for API level 35 per Google Play Store policies. Except that this time, I really mean it.”
Security scan
TRUSTED
- Developer signature verified 2025-12-07
- Signature SHA1 67:52:C9:D7:4D:58:BE:97:48:BE:69:A7:88:80:02:89:7D:7A:4F:C1
- File MD5 aa844334732df022afa2da9dfc67a6be
How to install MarsClock v1.30 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 5.2 MB of free storage.
- Grab org.scottmaxwell.android.marsclock_30.apk — hit the Download button above (5.2 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 aa844334732df022…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find org.scottmaxwell.android.marsclock_30.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=Scott Maxwell, OU=Top Dude, O=Caerlaverock Software, L=Pasadena, ST=CA, 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 MarsClock — tap Open on the install screen, or find the MarsClock icon in your app drawer.
Common install errors for MarsClock
- "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 6.0 Marshmallow 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.