Battery Monitor App

Last modified
Monday, September 17, 2018

Description of App

Battery Monitor, the most accurate battery life monitoring app on the App Store. With its simple battery life calibration, you can get estimations with down-to-the-minute accuracy (±1min)! It also have a handy widget to access estimations anywhere!

This app contains calibration for battery usage, battery charging time and much more, making it the most accurate on the App Store! Don't download those clones you find everywhere, download this FREE app now!

• ±1 min battery life accuracy*
• ±1 min charging time accuracy*
• Simple interface, easy to use
• iOS Widget for easy access
• One time battery calibration

Download and enjoy! :)

If you have any problems, feel free to contact

Developer: Wern Jie


*Accuracy is based on a perfectly calibrated device, which is required for high accuracy. Your device's accuracy may vary.

*Estimated values may sometimes progress up and down, but usually the first estimated value is the most accurate amount.

*Battery life time remaining means how long you can use your phone continuously, unless specified in calibration settings.

More info at



Free or Paid


Apple Watch Support


iOS Version


Device(s) App Was Tested On


Accessibility Comments

This app works perfectly with VoiceOver and everything is really straight forward.

VoiceOver Performance

VoiceOver reads all page elements.

Button Labeling

All buttons are clearly labeled.


The app is fully accessible with VoiceOver and is easy to navigate and use.

Other Comments

This app is very exact and will notify you when the battery gets low how long it will take before it is empty. I use it on both iPad and iPhone.


2 people have recommended this app

Most recently recommended by Sasha Stride 3 years 4 months ago



Submitted by Bharat on Wednesday, September 19, 2018


The developer name given on this page just above this message is different than what has been listed on the apps page. Request you to make the necessary updates on this page to avoid confusion. I have just about installed it, so, would be posting my impressions of the app later.

However, going by the app reviews & more, I guess, it is a good app.

Submitted by AnonyMouse on Wednesday, September 19, 2018

Member of the AppleVis Editorial Team

Hello Bharat,

The above mention of the Developer's Website link is correct. If you go to the AppStore for the app and follow their link to the Developer's Website is one and the same listed above.

It looks like that the site is made for several different developers and all are under the same umbrella.

So if you find that the above link is indeed incorrect. Please let us know and I will personally follow that up and correct it on this page.


Hi Bharat,

I'm Wern Jie, the individual developer behind Battery Monitor. Sorry for any confusion caused by the differing developer names, as due to age restrictions (being below 18 years old), hence the app is sold under my father's name (Eng Tat Lim) on the App Store, but I (Wern Jie) am the one behind everything else.

Hope this clears some confusion up!