Alarm Clock - Timer, Stopwatch v3.6.3p
APK · 1.2 MB · version code 187406 · Android 2.2+ · uploaded Dec 31, 2013
The source store flagged this file with a security warning (Warning). We recommend not installing it. See other versions.
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Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v24.16.4, uploaded Feb 6, 2026 — about 12 years after this one.
- Size: this file is 1.2 MB; the latest is 33.4 MB (32.2 MB larger).
- Android: this version needs Android 2.2+; the latest needs Android 9+. Use this one if your device runs an older Android release.
- The latest version asks for 26 more permissions: Access adservices ad id, Access adservices attribution, Access adservices topics, Approximate location, Precise location, Camera, Change wifi state, Run foreground services….
- The latest version no longer asks for: Bluetooth, Disable keyguard, Modify audio settings, Write settings.
File information
- Version
- v3.6.3p (187406)
- Uploaded
- Dec 31, 2013
- Size
- 1.2 MB
- Requires
- Android 2.2+ (API 8)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 4f39775582880ab1b26d4ec388908c54
- Signing certificate (SHA-1)
- 0C:B4:87:8C:8B:77:2E:A8:63:A4:B6:D5:A8:21:30:6F:0F:68:3C:64
- Signed by
- CN=Irene Duke
- File name
- com-alarmclock-xtreme-free-187406-4648751-4f39775582880ab1b26d4ec388908c54.apk
- Package
- com.alarmclock.xtreme.free
- Downloads (all versions)
- 50M+
- Age rating
- PEGI 3 · Everyone
What's new in v3.6.3p
** Bug fixes **
Permissions (12)
This version requests 12 permissions, 3 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Write settings Sensitive android.permission.WRITE_SETTINGS
- Bluetooth android.permission.BLUETOOTH
- Control vibration android.permission.VIBRATE
- Disable keyguard android.permission.DISABLE_KEYGUARD
- Full network access android.permission.INTERNET
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Warning
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jan 5, 2014.
- Certificate issued to “Irene Duke” This is the certificate of the Google Play version.
- Same certificate as the 6 other versions checked
Store checks
- Developer signature check failed Mar 9, 2025
- Validated against Google Play Jan 5, 2014
- Antivirus scan passed Oct 16, 2020
- Uploaded by “winstonwinner” 7 followers · uploading since 2013
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (6 other versions compared). AAPKs doesn't scan files itself.
How to install Alarm Clock - Timer, Stopwatch on Android 2.2+
You'll need about 2.5 MB of free space.
- Download the APK — tap Download APK above (1.2 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-alarmclock-xtreme-free-187406-4648751-4f39775582880ab1b26d4ec388908c54.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 4f39775582880ab1b26d4ec388908c54. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. The source store flagged this file with a security warning; we recommend not installing it. If Play Protect blocks it, tap Cancel. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Alarm Clock - Timer, Stopwatch — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 2.2+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source; for this file we recommend not to.