New in version 1.6.1
• Black widget background switch for both widgets
• Fixed a screensaver crash on Android 14+ when the phone locked right after plugging in
• The screensaver's burn-in shift now glides instead of jumping
• Home tab values update live from the monitor's readings
• Screensaver says "tomorrow" when the full-charge estimate passes midnight
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:
* Resizable home-screen widget: battery, memory, CPU, storage, Wi-Fi, mobile network, data usage, uptime, today's screen time and last update time; compact 2×2 widget with data-period labels
* Data counters per calendar day or per one-month billing cycle with a configurable start day
* Tabbed dashboard: Home (live battery ring, usage counters, system meters and live network traffic), Apps (usage insights), Device (hardware, SIM, Wi-Fi, camera and audio 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: app screen time, screen-on time, unlocks, filtered notification count, restarts, charging sessions and used storage
* Battery history and charging sessions for 14 days, with temperatures and charging rates
* Optional charge reminders, mobile-data quota warnings and alerts for a hot battery, low storage or fast battery drain
* CSV exports and a self-contained HTML report with charts, search and date filters
* 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, icons of unread notifications, charging power in watts, battery-tinted background, optional night dimming and a battery-full notification
The app uploads nothing. Android backup carries settings only, excluding history, notification content and delivered-alert flags. You can choose to share CSV/HTML exports, including notification text, through another app.
Versions
Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.
Download F-Droid
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arm64-v8a
armeabi-v7a
x86
x86_64
This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
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access approximate location only in the foreground
This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
-
access precise location only in the foreground
This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
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view network connections
Allows the app to view information about network connections such as which networks exist and are connected.
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view Wi-Fi connections
Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
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run foreground service
Allows the app to make use of foreground services.
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run foreground service with the type "specialUse"
Allows the app to make use of foreground services with the type "specialUse"
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interact with nearby Wi-Fi devices
Allows the app to advertise, connect, and determine the relative position of nearby Wi-Fi devices
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android.permission.PACKAGE_USAGE_STATS
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show notifications
Allows the app to show notifications
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query all packages
Allows an app to see all installed packages.
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read phone status and identity
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
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run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
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request delete packages
Allows an application to request deletion of packages.
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use biometric hardware
Allows the app to use biometric hardware for authentication
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prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
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org.jarsi.devicewatch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
4.1 MiB
PGP Signature
|
Build Log
New in version 1.5.0
• First-run intro with guided permission setup
• Monthly data usage history (up to 12 months)
• Swipe between tabs
• Pull-to-refresh on every page
• Haptic feedback on buttons
• Data amounts with two decimals
• Overview tab is now Home, with the data counter moved up
• Active data-SIM carrier shown on dual-SIM devices
• Many small fixes
-
arm64-v8a
armeabi-v7a
x86
x86_64
This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
-
access approximate location only in the foreground
This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
-
access precise location only in the foreground
This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
-
view network connections
Allows the app to view information about network connections such as which networks exist and are connected.
-
view Wi-Fi connections
Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
-
run foreground service
Allows the app to make use of foreground services.
-
run foreground service with the type "specialUse"
Allows the app to make use of foreground services with the type "specialUse"
-
interact with nearby Wi-Fi devices
Allows the app to advertise, connect, and determine the relative position of nearby Wi-Fi devices
-
android.permission.PACKAGE_USAGE_STATS
-
show notifications
Allows the app to show notifications
-
query all packages
Allows an app to see all installed packages.
-
read phone status and identity
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
-
run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
-
request delete packages
Allows an application to request deletion of packages.
-
prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
-
org.jarsi.devicewatch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
3.8 MiB
PGP Signature
|
Build Log
New in version 1.4.1
• 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 F-Droid reproducible builds
-
arm64-v8a
armeabi-v7a
x86
x86_64
This version requires Android 8.0 or newer.
It is built and signed by the original developer, and guaranteed to correspond to this source tarball.
Permissions
-
access approximate location only in the foreground
This app can get your approximate location from location services while the app is in use. Location services for your device must be turned on for the app to get location.
-
access precise location only in the foreground
This app can get your precise location from location services while the app is in use. Location services for your device must be turned on for the app to get location. This may increase battery usage.
-
view network connections
Allows the app to view information about network connections such as which networks exist and are connected.
-
view Wi-Fi connections
Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.
-
run foreground service
Allows the app to make use of foreground services.
-
run foreground service with the type "specialUse"
Allows the app to make use of foreground services with the type "specialUse"
-
interact with nearby Wi-Fi devices
Allows the app to advertise, connect, and determine the relative position of nearby Wi-Fi devices
-
android.permission.PACKAGE_USAGE_STATS
-
show notifications
Allows the app to show notifications
-
query all packages
Allows an app to see all installed packages.
-
read phone status and identity
Allows the app to access the phone features of the device. This permission allows the app to determine the phone number and device IDs, whether a call is active, and the remote number connected by a call.
-
run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
-
request delete packages
Allows an application to request deletion of packages.
-
prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.
-
org.jarsi.devicewatch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Download APK
3.7 MiB
PGP Signature
|
Build Log
