The PHIVOLCS FaultFinder v17.0
APK · 3.9 MB · version code 17 · Android 11+ · uploaded Jun 24, 2026
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v20, uploaded Aug 17, 2025.
- Size: this file is 3.9 MB; the latest is 3.9 MB (218 B larger).
- Android: this version needs Android 11+; the latest needs Android 14+. Use this one if your device runs an older Android release.
- Both versions request the same permissions.
File information
- Version
- v17.0 (17)
- Uploaded
- Jun 24, 2026
- Size
- 3.9 MB
- Requires
- Android 11+ (API 30)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 6eae11a56b3220dee23f42c0ea99b0d0
- Signing certificate (SHA-1)
- 5C:C8:4B:3B:F7:9A:1D:28:15:28:45:06:A9:8E:97:F6:A3:47:EE:5A
- Signed by
- CN=Joel Bandibas, OU=Geological Survey of Japan, O=National Institute of Advanced Industrial Science and Technology, L=Tsukuba, ST=Ibaraki Prefecture, C=305-0046
- File name
- com-phivolcs-faultfinder-0-17-75336656-6eae11a56b3220dee23f42c0ea99b0d0.apk
- Package
- com.phivolcs.faultfinder_0
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v17.0
With declared foreground location service.
Permissions (4)
This version requests 4 permissions, 1 of them sensitive.
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Full network access android.permission.INTERNET
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jun 24, 2026.
- Certificate issued to “National Institute of Advanced Industrial Science and Technology” This is the certificate of the Google Play version.
- Same certificate as the 3 other versions checked
Store checks
- Developer signature verified Jun 24, 2026
- Validated against Google Play Jun 24, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself.
How to install The PHIVOLCS FaultFinder on Android 11+
You'll need about 7.9 MB of free space.
- Download the APK — tap Download APK above (3.9 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-phivolcs-faultfinder-0-17-75336656-6eae11a56b3220dee23f42c0ea99b0d0.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 6eae11a56b3220dee23f42c0ea99b0d0. 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?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. 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 The PHIVOLCS FaultFinder — 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 11+). 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.