Co-cost
v1.55 · 2.7 MB · code 25
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File information
UpdatedNov 17, 2025
PublishedNov 14, 2021
Packagecom.maramsin.cocost
Versionv1.55 (25)
Size2.7 MB
MD5374938f02dffca2cf1bbb8f82ef22a9c
Min SDK21
Malware scanTRUSTED
Signature SHA10A:CA:39:22:62:D5:D5:EF:F9:87:87:E1:5E:CD:C9:CD:A4:85:55:9A
SignerO=Maramsin Software
Total downloads1,000
This version1,000
DeveloperMaramsin Software
Age ratingEveryone
What's new in v1.55
• Support Android 16 added.
Security scan
TRUSTED
- Developer signature verified 2025-11-17
- Signature SHA1 0A:CA:39:22:62:D5:D5:EF:F9:87:87:E1:5E:CD:C9:CD:A4:85:55:9A
- File MD5 374938f02dffca2cf1bbb8f82ef22a9c
How to install Co-cost v1.55 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 2.7 MB of free storage.
- Grab com.maramsin.cocost_25.apk — hit the Download button above (2.7 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 374938f02dffca2c…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.maramsin.cocost_25.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 O=Maramsin Software. 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 Co-cost — tap Open on the install screen, or find the Co-cost icon in your app drawer.
Common install errors for Co-cost
- "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.