Seismometer

earthquake detector

KHTSXR · oops.seismometer

Not rated yet 50K+ downloads v11.0 6 MB Android 4.4+ PEGI 3 · Everyone

Download APK 6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v11.0 (11)
Updated: Jan 4, 2026 (9 months ago)
APK size: 6 MB
Requires: Android 4.4+ (API 19)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Mar 12, 2021 (at least)
Permissions: 10
Website: khtsxr.blogspot.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Seismometer is an app by KHTSXR in the Tools category, listed since at least March 2021. It has no native code, so it runs on any Android processor.

Since version 10.0, the APK grew from 5.1 MB to 6 MB. It asks for 10 permissions, none of them sensitive. Compared with version 10.0, it adds 3 new permissions: “Access adservices ad id”, “Access adservices attribution” and “Access adservices topics”. The app can read the advertising ID that ad and analytics services use.

Description

From the listing uploaded by “appupdater”.

This seismometer is earthquake detector and seismograph machine app. This app calculates approximately the richter magnitude scale. And It can estimates object vibration using phone acceleration sensor. NOTE. Some phone having a bad sensor(or error sensor) will show inaccurate result. Some phones will give different sensor readings based on the hardware used by the manufacturer.

Version history

2 versions are listed, going back to v10.0.

v11.0 LATEST Jan 4, 2026 6 MB TRUSTED v10.0 Jul 23, 2023 5.1 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 4, 2026.
Certificate issued to “bbunkaheaven” This is the certificate of the Google Play version.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Jan 4, 2026
Validated against Google Play Jan 4, 2026
Signed byCN=bbunkaheaven, O=bbunkaheaven, L=Seoul, C=ko
Signing certificate (SHA-1)FC:CA:78:44:49:B4:C6:0C:60:9B:0D:3C:D8:B0:CD:FE:6C:03:D4:60
File MD5aa9067f90280cb3c7f8bbf890f221a54
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (10)

Seismometer requests 10 permissions, none of them sensitive.

Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Full network access android.permission.INTERNET
High sampling rate sensors android.permission.HIGH_SAMPLING_RATE_SENSORS
Internal broadcast protection (app-defined) oops.seismometer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

Seismometer APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Seismometer APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is aa9067f90280cb3c7f8bbf890f221a54.