BIG Alarm
v1.2.6 · 1.1 MB · code 126
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File information
UpdatedApr 14, 2026
PublishedAug 14, 2019
Packagecz.twobig.alarm
Versionv1.2.6 (126)
Size1.1 MB
MD5c7f91abb7f60d38bddca9299a28e2122
Min SDK21
Malware scanTRUSTED
Signature SHA1F1:43:00:CA:2B:6A:A6:2C:47:AC:0E:6C:DD:0D:75:78:1C:DF:FF:08
SignerO=2BIG
Total downloads5,591
This version5,591
DeveloperBIG Launcher Team
Age ratingEveryone
What's new in v1.2.6
v1.2.6
* fixed a crash when the alarm service was restarted by the system
* fixed a crash when stopping alarm sound playback
* improved alarm sound reliability — falls back to default alarm tone if the selected ringtone fails
* alarm now always vibrates even if sound playback fails
+ compatible with the latest Android versions
* fixed a crash when the alarm service was restarted by the system
* fixed a crash when stopping alarm sound playback
* improved alarm sound reliability — falls back to default alarm tone if the selected ringtone fails
* alarm now always vibrates even if sound playback fails
+ compatible with the latest Android versions
Security scan
TRUSTED
- Developer signature verified 2026-04-14
- Signature SHA1 F1:43:00:CA:2B:6A:A6:2C:47:AC:0E:6C:DD:0D:75:78:1C:DF:FF:08
- File MD5 c7f91abb7f60d38bddca9299a28e2122
How to install BIG Alarm v1.2.6 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 1.1 MB of free storage.
- Grab cz.twobig.alarm_126.apk — hit the Download button above (1.1 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 c7f91abb7f60d38b…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find cz.twobig.alarm_126.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=2BIG. 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 BIG Alarm — tap Open on the install screen, or find the BIG Alarm icon in your app drawer.
Common install errors for BIG Alarm
- "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.