We've added a graph that displays the change in battery level on your iPhone and Watch. Tapping "AutoUpdate Log" will take you to the display screen. A graph will show the change in battery level over approximately one day. You can also change the auto update interval on this screen. Please note that the update interval is controlled by iOS and may not be accurate.

Changes made to complication settings in the Battery Phone app on your iPhone are now reflected in the complications on your Watch within seconds. Changes are now reflected without having to tap the complication on your Watch, as was the case before. However, these instant updates are limited to 50 times per day (iOS restriction). The limit will be lifted the next day and will return to 50 times. If the limit is exceeded, you can update the changes by tapping the complication on the Watch.

Now compatible with iOS 26 and WatchOS 26. This release supports iOS 13 and later. If your complications are no longer automatically updating after updating WatchOS, try the following: - Turn your Apple Watch off and on - Uninstall and reinstall Battery Phone on your Apple Watch (Please run it in the Watch app on your iPhone)

The Rectangle complication now shows the battery update time.

We have changed the way you navigate to the complication settings screen on the iPhone app.

You can now specify the percentage for the full charge notification. The graphic circle on the settings screen now displays a single color gauge in the sample image.

We fixed an issue where the charge level display on the Watch screen would sometimes be cut off when the iPhone Watch app's Settings -> Display & Brightness -> Bold Text was turned on.

The display screen of the Apple Watch has been changed.

You can select to display the remaining battery level of iPhone and watch at the same time with the utility small flat complication. Utility small flat complication can be displayed in Siri, Motion, Photo, and Timelapse watch faces.

Revived complications that could not be displayed in watchOS 9 (finally!). I also added other complications (such as a big one that can be added to an oversized dial). When the amount of charge is less than the threshold, the characters are made red. From this version, iOS 12 or later and watchOS 5 or later are eligible.

Added a circle display to the complication modular small. You can select text display or circle display.

Fixed the problem that the battery level display may not appear on the screen of the iPhone application in version 3.9. Fixed the English version of notifications displaying %%. The screen display of Watch has been made a little more compact. Changed the color of the gauge according to the charge amount of the complication. It was changed to red, yellow, and green with a fixed value, but it is now displayed in red and green according to the threshold set on the iPhone application screen.

Fixed the English version of notifications displaying %%. The screen display of Watch has been made a little more compact. Changed the color of the gauge according to the charge amount of the complication. It was changed to red, yellow, and green with a fixed value, but it is now displayed in red and green according to the threshold set on the iPhone application screen.

The complication update interval has been shortened slightly. When the complication gauges are monochromatic, they are now color-coded according to the amount of charge. The iPhone and Watch device names are now displayed on the iPhone screen.

Added support for iOS 15.

In the complication settings, you can now choose the color of the circular gauge of the graphic circle from gradient or single color.

Support for iOS 14. The charging mark is displayed in the graphic corner of the complication.

Fixed that automatic update may not be possible if the iPhone application is forced to quit.

Improved the stability of automatic update. The update interval will be approximately 12 to 60 minutes.The update interval depends on the status of Watch OS.

Fixed an issue where the circular small gauge was set to iPhone on the complication setting screen, but it returned to watch. The support site can be translated into various languages with the "Translate" option on the right side of the site.

Enhanced complication settings. The outer number, inner number, and gauge of the circular complication can be selected separately from the charging amount of the iPhone and watch. In the graphic corner, you can choose to display by text or by gauge. The changed settings will be reflected in the watch at the next automatic update or when you tap the complication.

The internal structure was updated in version 2.9. And with this version, the stability of automatic update of complications is further improved.

By changing the internal structure, the automatic update interval has been greatly shortened. It updates automatically at intervals of approximately 5 to 30 minutes. The range of update intervals is dependent on Watch OS. If the automatic update has stopped (eg, there is no update for more than 1 hour), tap the complication to restart it. In the iPhone app, the latest update time is displayed under the watch's charge status display. The background color is displayed on the battery image of the iPhone application. Changed the display position of the ad so that you don't tap it by mistake.

Fixed that the notification of full charge is always given when "Suppress notification：" is OFF. Other adjustments were made.

When automatic update every 30 minutes is stopped due to some reason, automatic update is resumed by tapping the complication.