Contrastum FREE
v1.0.3 · 25.3 MB · code 4
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File information
UpdatedOct 30, 2024
PublishedSep 11, 2019
Packagecom.apkcreative.contrastum.free
Versionv1.0.3 (4)
Size25.3 MB
MD5b27812f59bd1d4b304109929417ae685
Min SDK9
Malware scanTRUSTED
Signature SHA154:BA:98:B5:B3:E9:CC:6A:EA:16:CA:DA:9B:EC:DB:58:F7:03:80:1D
SignerCN=Ivan Karsakov, OU=Ka, O=Karsakoff developers, L=Severouralsk, ST=Sverdlovskaya obl, C=RU
Total downloads733
This version733
DeveloperIvan
Age ratingLow Maturity
Security scan
TRUSTED
- Developer signature verified 2015-05-12
- Scanned for malware 2020-11-10 08:20:22
- Signature SHA1 54:BA:98:B5:B3:E9:CC:6A:EA:16:CA:DA:9B:EC:DB:58:F7:03:80:1D
- File MD5 b27812f59bd1d4b304109929417ae685
How to install Contrastum FREE v1.0.3 on Android API 9+
Takes about 2 minutes. You'll need roughly 25.3 MB of free storage.
- Grab com.apkcreative.contrastum.free_4.apk — hit the Download button above (25.3 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 b27812f59bd1d4b3…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.apkcreative.contrastum.free_4.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=Ivan Karsakov, OU=Ka, O=Karsakoff developers, L=Severouralsk, ST=Sverdlovskaya obl, C=RU. 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 Contrastum FREE — tap Open on the install screen, or find the Contrastum FREE icon in your app drawer.
Common install errors for Contrastum FREE
- "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 9 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.