RRB Railways Exams
v3.3.5 · 9.3 MB · code 2021
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File information
UpdatedDec 20, 2022
PublishedFeb 28, 2021
Packagecom.kopykitab.rrb
Versionv3.3.5 (2021)
Size9.3 MB
MD550ed057c9332583a72895db3a56df5b5
Min SDK15
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA138:2F:C2:4F:01:9C:EF:7E:26:C8:C0:E1:6C:6C:E6:B2:AF:48:7E:55
SignerO=Kopykitab, L=Bangalore, ST=Karantaka
Total downloads10,000
This version10,000
DeveloperDigiBook Technologies (P) Ltd.
Age ratingEveryone
What's new in v3.3.5
- Removed some Permissions
- Support for Android 11
- Performance & Bug Fixes
- Support for Android 11
- Performance & Bug Fixes
Security scan
TRUSTED
- Developer signature verified 2022-12-20
- Scanned for malware 2022-12-20 23:22:34
- Signature SHA1 38:2F:C2:4F:01:9C:EF:7E:26:C8:C0:E1:6C:6C:E6:B2:AF:48:7E:55
- File MD5 50ed057c9332583a72895db3a56df5b5
How to install RRB Railways Exams v3.3.5 on Android API 15+
Takes about 2 minutes. You'll need roughly 9.3 MB of free storage.
- Grab com.kopykitab.rrb_2021.apk — hit the Download button above (9.3 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 50ed057c9332583a…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.kopykitab.rrb_2021.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=Kopykitab, L=Bangalore, ST=Karantaka. 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 RRB Railways Exams — tap Open on the install screen, or find the RRB Railways Exams icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for RRB Railways Exams
- "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 15 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 arm64-v8a native code. Devices with a different CPU will reject it.