It’s easy for people to write off power as a trivial necessity. It’s a burden that needs maintenance or your phone won’t work. The first thing you need to top-off before leaving the house. Sure you need a backup or two in case the day runs long or your phone gets overworked. And there are so many options to replenish its battery: power banks, induction rechargers that stick to the back of your phone, cigarette lighters that plug in to charge your phone. Some newer cars have recharge pads you lay your phone on while driving to get your phone up a few percent points while driving. Why don’t they make batteries that just pop out like old Samsung phones, when low just pop-out the depleted battery for a fresh one. I always get the higher wattage chargers for fastest charge mode 50% charge in 1/2 hour. Even induction chargers go to 25W now I believe. People rely on their phones to much not to worry about battery levels. My iPhone can charge near my Computer while I answer calls and texts using my computer or tablet. Main reason I love Apple is all the devices support each other. Even my watch can take calls while the phone charges. Keep that battery conditioned to recharge in its sweet spot 40% and 80% keeps the battery healthy and recharge to 95% max. Maybe 100% once a week, there is a setting on the iPhone that manages that for you. You’ll wish you took better care once it’s too late, so start new or even later if you are just learning. Keep your battery happy, start now.

All these people saying it's inconsistent have zero knowledge of how battery capacity is measured. Yes, the readings will fluctuate, but it doesn't take a genius to know you can just take the average of the readings, which is made easy by the chart and history features of the app. For a true capacity test, you'd have to charge the battery full and discharge until it's empty while watching the current draw over time. iPhones can't really do this very accurately, so inconsistent readings are not the fault of the app. The app is just reporting what the phone is learning about its battery. Under high draw (such as an increased brightness) the voltage sags and the phone has to guess whether it's the battery's internal resistance or it's actually used up it capacity and lowered the voltage. Apple never meant for the user to see these readings, so they fluctuate and aren't really user-friendly. This app just reveals these measurements to give an estimate on remaining capacity. It's a simple, easy to use app that does exactly what it's supposed to do to the best of its ability.

I have used similar apps on macOS to help monitor the values of my connected devices, but they seem to use some other technique that drains the battery quicker than they should. This app seems to only update when you requested to, by turning off, background app updates, but also you’re able to make custom names for your devices so that you can figure out which is which. I own two pairs of AirPods Pro Gen 2 and I regularly switched between them, but I’m only able to name them on as a group, but the case itself remains unnamed on many of my devices. Quickly being able to take a glance at it here on the iPad I can tell what battery status they all are and which one. Apple‘s battery tool just shows two cases with the same name. Even though I’ve renamed the AirPods to different names.I purchased the no ad version as ads are just against my philosophy, I need none of the premium features at the moment. I appreciate the one time purchase option over any subscription.

This is a very accurate application, i always use it to check the battery on my airpods since sometimes when opening the case it doesn’t always display it on my screen. The only issue I have with it is after i view one different tab and go back an ad is played, like every new action, an ad is played. I dont have a problem with free aps displaying ads, considering it is a free ap and it is most likely the only way they earn some sort of profit. I just dont like how many times it is showed while using it. Other than that, it is a great tool, it updates constantly so it gives you a very accurate read on percentage, theres more to it inside that i havent exactly explored, but so far i think it is a great app and i definitely recommend.