# BatteryPhone

> Monitor phone and watch battery status and charging from your wrist. (iPhone/iPad app by Keietsu Yasuhara.)

- Source: https://appshunter.io/ios/app/batteryphone/id1191334332 (this page in markdown: same URL + `.md`)
- Developer: [Keietsu Yasuhara](https://appshunter.io/developer/378538320)
- Category: Utilities, Productivity
- Price: Free
- Rating: 3.70/5 from 148 App Store ratings · 134 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 14 MB
- Languages: American English, Japanese
- Released: 2017-01-09
- Data updated: 2026-07-23
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/batteryphone/id1191334332/reviews.md

## What is BatteryPhone?

You can check the battery status of your phone and watch with your watch.
Compatible with complications (automatic update).
You can check the charging amount and charging status of the phone in a timely manner from the clock face.
We will notify you by a notification when the charge amount of the phone or watch becomes less than the specified% or becomes full charge.
The graph also displays the change in charge level for your phone and watch.

- Set up complications with the watch app on your watch or phone.
- The battery status displayed in the complication is automatically updated approximately every 12 to 60 minutes.
　The reason why the update interval has a range is that it depends on Watch OS.
　If the automatic update has stopped (for example, there is no update for more than 1.5 hour), tap the complication to restart it.
　In the iPhone app, the latest update time is displayed under the watch's charge status display.
- Tap the complication to update to the latest status.
- A circular complication can be assigned to the outer circle and the inner number to indicate the battery level of the phone and watch, respectively.

--
I am a Japanese developer.
The support site can be translated into various languages with the "Translate" option on the right side of the site.

## Key features

- Check phone and watch battery status
- Receive low and full charge notifications
- View battery level graphs
- Complication support for automatic updates
- Tap complication to manually update status

## What do users think of BatteryPhone?

Overall sentiment: neutral

**Pros**

- 👍 Easy to use
- 🚀 Convenient way to check battery levels
- 💡 Helpful complication options
- 🔋 Minimal battery drain

**Cons**

- 🐛 Inconsistent updates
- 🐛 Inaccurate battery readings
- 🔋 High battery consumption
- 🐛 Compatibility issues with newer devices/OS

**Commonly reported bugs**

- Complication not updating
- App crashing on launch
- Incorrect battery percentage displayed

**Most requested features**

- Customizable update frequency
- Support for AirPods/Bluetooth device battery monitoring
- Notification when device is fully charged
- Ability to select which device's battery is displayed on complication

## Recent user reviews (10 of 134)

All indexed reviews: https://appshunter.io/ios/app/batteryphone/id1191334332/reviews.md

### 1/5 — Broken Sadly

*2026-05-30, version 5.6*

Used to be very useful for at a glance percentage telling but now stat updates never occur unless triggered manually making the feature fairly useless.

### 1/5 — Broken Again

*2026-04-28, version 5.6*

Used to be great now it’s not working at all!!! Please fix it.

### 1/5 — Never updates battery info

*2026-03-27, version 5.6*

The only time it updates is when i tap the complication on my watch. Then it won’t change all day after that.

### 2/5 — Wrong information

*2026-03-21, version 5.6*

Its doesn’t g show 100% accurate information and I’m looking for better app😡😡😡

### 5/5 — Crashes on phone

*2026-03-13, version 5.6*

Can’t make it work anymore. When I open the Watch app it’s blank, and when I push the update button it crashes the phone app 😔

### 1/5 — Pointless

*2026-03-06, version 5.6*

What is the point of this?

Giving it a star is an insult to rubbish apps.

It doesn’t automatically update. It has to be the worst app I’ve downloaded.

The information has to be manually updated.

I have to ask what was this developed for?

Was it to tell you your caffeine intake or just an advertisement platform?

If it is an advertisement platform don’t buy anything from it. Why because they must be desperate to advertise on a non functional pile of garbage. Actually it’s so bad that describing it as a pile of garbage denigrates how important and useful a pile of garbage is.

So please tell me what is the point of this piece of trash?

### 1/5 — No longer works

*2026-02-25, version 5.6*

No longer gives correct information of the watch it says 40% when watch is 99%

### 1/5 — Doesn’t work

*2026-02-24, version 5.6*

Doesn’t alert me when my phone or watch or low.

### 5/5 — Easy information on where your battery is.

*2026-02-20, version 5.6*

Being using more than 5 years and terrific at displaying both watch & phone battery info. Really useful.

### 1/5 — Don’t work on Apple Watch

*2026-01-31, version 5.5*

I got this app because of my Apple Watch 9. It showed 30% when I downloaded the app and after 3 days it hasn’t changed. Useless!

## Frequently asked questions about BatteryPhone

### What does this app do?

This app allows you to check the battery status of your phone and smartwatch directly from your watch. It provides timely notifications for low or full charge levels and displays battery changes over time with graphs.

### How does the complication feature work?

Complications allow for automatic updates of battery status on your watch face, typically every 12 to 60 minutes depending on Watch OS. If updates stop, tapping the complication can restart them. The iPhone app shows the last update time.

### Is this app free to use?

The application is free to use. However, it does display advertisements. There are no in-app purchases mentioned.

### What devices is this app compatible with?

The app is designed to monitor both your phone and your watch. It specifically mentions compatibility with complications, suggesting it works with smartwatches that support this feature, likely within the Apple ecosystem.

### When would I use this app?

You would use this app to quickly check your phone and watch battery levels without needing to take out your phone. It's also useful for setting up alerts so you know when to charge your devices or when they are fully charged.

## Version history (last 5 releases)

### 5.6 — 2026-02-01

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.

### 5.5 — 2025-11-01

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.

### 4.9 — 2025-10-08

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)

### 4.8 — 2025-07-10

The Rectangle complication now shows the battery update time.

### 4.7 — 2025-02-02

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

## Apps similar to BatteryPhone

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Battery Life Health Doctor Pro](https://appshunter.io/ios/app/battery-life-health-doctor-pro/id1180887748) | 4.4 (7,858) | Free | Utilities |
| [Battery HD+](https://appshunter.io/ios/app/battery-hd-plus/id331453283) | 4.5 (2,596) | Free | Utilities |
| [Battery Life - check runtimes](https://appshunter.io/ios/app/battery-life-check-runtimes/id1080930585) | 4.6 (33,031) | Free | Utilities |
| [Battery Testing](https://appshunter.io/ios/app/battery-testing/id887730232) | 4.5 (12,129) | Free | Utilities |
| [Amperes Battery Charging Lite](https://appshunter.io/ios/app/amperes-battery-charging-lite/id1253789580) | 4.2 (542) | Free | Utilities |
| [Battery Health - Charge Alarm](https://appshunter.io/ios/app/battery-health-charge-alarm/id1557004936) | 4.4 (537) | Free | Utilities |

## More apps by Keietsu Yasuhara

- [風車](https://appshunter.io/ios/app/id378538317)
- [scCalendar(スクロールカレンダー)](https://appshunter.io/ios/app/sccalendar/id384683070)
- [Sandglass3](https://appshunter.io/ios/app/sandglass3/id386488183)
- [scCalendarHD（スクロールカレンダーHD）](https://appshunter.io/ios/app/sccalendarhdhd/id396296664)
- [FuelRec](https://appshunter.io/ios/app/fuelrec/id446624668)
- [DayRemain](https://appshunter.io/ios/app/dayremain/id556514519)

All apps by Keietsu Yasuhara: https://appshunter.io/developer/378538320

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-23.*