Battery‪⁺‬ 4+

Very good app but...

The complication refreshes at a minimum rate of 20 minutes. A refresh rate of every 10 minutes or even 5 minutes would make this app perfect. However, this is just a minor issue.

Developer Response ,

Apple put limits on how often can complications update. 20 minutes is currently the optimal interval to last the entire day without affecting battery life.

It works, does exactly as it shows and says

Honestly had expected this sort of a feature to be in built to the Apple Watch however it wasn't, I tend to leave my phone in my locker at the gym or at my desk in the office so this was one of the first apps I looked for with my Apple Watch. I have tried the other free apps trying to find one to update it on the Watch face but couldn't find any that would do that, was a bit unsure about paying for a app to do this because I didn't see a lot of reviews but I decided why not take the chance... it did exactly what I needed! If you're unsure it is a app to allow you to monitor your phone battery on your Apple Watch face screen and it works, if that's what you need then it's worth it.

Battery complication not refreshing

You have to manually open the complication to get the updated figure.