Device Watch

Jarsi Soderstrom · org.jarsi.devicewatch

Not rated yet v1.7.0 4.2 MB Android 8.0+ PEGI 3 · Everyone

Download APK 4.2 MB All versions

Same certificate as the 3 other versions checked Details

At a glance

Latest version: v1.7.0 (20)
Updated: Oct 7, 2026 (2 days ago)
APK size: 4.2 MB
Requires: Android 8.0+ (API 26)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Tools (app)
Permissions: 17 (6 sensitive)
Website: github.com/jrs8205/Device-Watch
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Device Watch is an app by Jarsi Soderstrom in the Tools category. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 1.4.1, the APK grew from 3.7 MB to 4.2 MB. It asks for 17 permissions, 6 of them sensitive, including precise location, approximate location and read phone status and identity. It asks for the same permissions as version 1.6.0.

What's new in v1.7.0

• The screen time card on the Since charge page now has its own title instead of reusing "Screen time today" • The APK no longer embeds Google's encrypted dependency-info block, enabling reproducible builds

Description

From the listing uploaded by “catappult”.

Device Watch is an Android device monitor with a home-screen widget, per-app usage insights and an interactive screensaver for charging or docked use. It works completely offline: the app has no internet permission, and every number is real data read from Android and kernel sources — when a value is not available with the permissions granted, the app shows a dash instead of a fabricated value. Features: • Home-screen widget: battery, memory, CPU, storage, Wi-Fi, mobile network, data usage, uptime, today's screen time and last update time • Data counters per calendar day or per one-month billing cycle with a configurable start day • Tabbed dashboard: Overview (live battery ring, usage counters, system meters), Apps (usage insights), Device (hardware, SIM and Wi-Fi details) and Settings • Screen-time donut of your most-used apps, top data consumers and a last-opened list with per-app uninstall • Usage counters with a private 62-day daily history kept on the device: screen time, unlocks, filtered notification count, restarts and charging sessions • On-device notification log with 7-day retention • Since-charge view: elapsed time, battery drop, average drain and per-app screen time since the battery was last charged full or unplugged • Interactive screensaver with a large clock, next alarm, charging power in watts, battery-tinted background, optional night dimming and a battery-full notification All statistics stay on the device. Nothing is uploaded anywhere.

Version history

4 versions are listed, going back to v1.4.1.

v1.7.0 LATEST Oct 7, 2026 4.2 MB TRUSTED v1.6.0 Sep 30, 2026 4.1 MB TRUSTED v1.5.0 Aug 14, 2026 3.8 MB TRUSTED v1.4.1 Aug 14, 2026 3.7 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “jrs8205” Not the developer's name (“Jarsi Soderstrom”). Names in certificates can't be verified, so this alone proves nothing.
Same certificate as the 3 other versions checked

Store checks and file details

Developer signature verified Oct 7, 2026
Signed byCN=Device Watch, OU=Device Watch, O=jrs8205, L=Helsinki, ST=Uusimaa, C=FI
Signing certificate (SHA-1)09:42:98:71:A9:B8:9D:07:84:FC:48:75:11:9B:45:FF:F1:C9:FC:0B
File MD50b8dfa3e707b62209018724f86a6a4d5
Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

Scans and ratings 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 — compare the MD5 and signer after downloading.

Permissions (17)

Device Watch requests 17 permissions, 6 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Nearby wifi devices Sensitive android.permission.NEARBY_WIFI_DEVICES
Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
See all installed apps Sensitive android.permission.QUERY_ALL_PACKAGES
Foreground service special use android.permission.FOREGROUND_SERVICE_SPECIAL_USE
Internal broadcast protection (app-defined) org.jarsi.devicewatch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Manager api v23 (custom) moe.shizuku.manager.permission.API_V23
Prevent the device from sleeping android.permission.WAKE_LOCK
Request delete packages android.permission.REQUEST_DELETE_PACKAGES
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
Use biometric hardware android.permission.USE_BIOMETRIC
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location
Wi-Fi android.hardware.wifi

Device Watch APK: questions and answers

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

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the Device Watch APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as the 3 other versions checked. After downloading, check that the file's MD5 is 0b8dfa3e707b62209018724f86a6a4d5.