Study Ratna
v2.2.1 · 61.4 MB · code 24
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File information
UpdatedMar 28, 2025
PublishedMar 28, 2025
Packagecom.study.ratna
Versionv2.2.1 (24)
Size61.4 MB
MD5d0ce85161e724c7b45b4e4d40d00610d
Min SDK21
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanUNKNOWN
Signature SHA12C:55:6D:3D:88:7C:89:90:45:18:D0:DA:41:48:FF:34:AF:05:4C:C6
SignerC=US, O=Android, CN=Android Debug
Total downloads18
This version18
Age ratingEveryone
Security scan
UNKNOWN
- Developer signature verified 2025-03-28
- Signature SHA1 2C:55:6D:3D:88:7C:89:90:45:18:D0:DA:41:48:FF:34:AF:05:4C:C6
- File MD5 d0ce85161e724c7b45b4e4d40d00610d
How to install Study Ratna v2.2.1 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 61.4 MB of free storage.
- Grab com.study.ratna_24.apk — hit the Download button above (61.4 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 d0ce85161e724c7b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.study.ratna_24.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 C=US, O=Android, CN=Android Debug. 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 UNKNOWN).
- Done — open Study Ratna — tap Open on the install screen, or find the Study Ratna icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Study Ratna
- "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.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.