Amperes 3 - Battery Life Info

Amperes 3 - Battery Life Info

Compare & test charger & wires

100 ratings
18 reviews
$0.99

Details

  • Released
  • Updated
  • July 24, 2019
  • September 26, 2024
Amperes 3 - Battery Life Info video #1 for iPhone
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Amperes 3 - Battery Life Info screenshot #5 for iPhone
Amperes 3 - Battery Life Info screenshot #6 for iPhone
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About

Monitor your remaining battery life based on various activities such as web browsing or music playback. This app also helps you compare different chargers and wires, including wireless options and cases, and provides battery charge notification alarms.

Remaining battery life estimation
Activity-based battery drain
Charger and wire comparison
Wireless charger support
Battery charge notification alarm
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What's New in Amperes 3

3.0.10

September 26, 2024

Support for iOS18 added

User reviews

Be warned - not what you’re expecting.

This app intro text is misleading (April ‘25). Apparently Apple have hidden the data needed to get usefully quick data on charge rates, and you have to measure actual charge time and the app does the maths that you could instead to calculate charge rates.

That’s not the developer’s fault, but they could have chosen to say so before you buy it and find out.

Kinda chapped my cheeks - be aware of this before you spend your money.
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Unusable

This app crashes every single time I try to open it. Absolute waste of money.

Doesn’t work very well on iOS 17.2.1.

Update: I got the app working better and thanks Andre for replying to my initial review and attempting a refund. I upped to 3 stars since I’ve been able to perform and record some tests. If the interface said test below 70% charge rather than 90%, it would solve a lot of initial headaches. How is the user supposed to know that if the app doesn’t say? Also, the tests taking >10 to 20 minutes is a long time to wait when you can’t navigate away from the app during the test. Having an estimated countdown timer or a progress bar come up after 2 or so minutes would be helpful to decide whether to continue or abort for another time. Tried on 2 chargers and it didn’t work on either. My wireless charger charged my phone from 70% to 100% with the test running and the app didn’t record anything. I tried another plug-in charger at battery 87% and the battery icon showing charging. The app says the phone must be charging (check) and the battery must be below 90% (check). The test wouldn’t even start.
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Response from developer

Hello. Please try running tests when your device is discharged below 70% if you are on iOS 17. Apple added several changes that will result in slower tests and need more total discharged percentage of your device battery in order to work. Unfortunately we could not persuade Apple support to reverse this change back in iOS 17. regards, Andre

Didn’t work on iOS 17.2.1. Money wasted.

Tried on 2 chargers and it didn’t work on either.

My wireless charger charged my phone from 70% to 100% with the test running and the app didn’t record anything.

I tried another plug-in charger at battery 87% and the battery icon showing charging. The app says the phone must be charging (check) and the battery must be below 90% (check). The test wouldn’t even start.
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Response from developer

Hello. Please try running tests when your device is discharged below 70% if you are on iOS 17. Apple added several changes that will result in slower tests and need more total discharged percentage of your device battery in order to work. Unfortunately we could not persuade Apple support to reverse this change back in iOS 17. regards, Andre

Stopped working

Due to iOS17 maybe?? Tests take forever now, results are way off from prior tests with the same gear.

Response from developer

Update . 10/25/2023. Hello. Support for iOS 17 was added. Please update your app. Regards, Andrew Hello. Yes, iOS 17 broke the battery reporting functionality. We opened case with Apple but so far they are not providing any info on when is it going to be fixed if at all. Hope that we will not need to bring it to the media if they will decide not to fix it. Regards, Andre

Developer apps

FAQ

What does Amperes 3 do?

Amperes 3 helps you monitor your device's remaining battery life for various activities like browsing the web or listening to music. It also simplifies the process of comparing different chargers and wires, including wireless options and cases. Additionally, it provides battery charge notification alarms.

How can I compare chargers with Amperes 3?

The app allows you to compare chargers and wires by providing a platform to test and evaluate their performance. This feature extends to wireless chargers and cases, helping you determine the most efficient charging solutions for your device.

Is Amperes 3 free to use?

Yes, Amperes 3 is a free application. There are no costs associated with downloading or using its core features for battery monitoring and charger comparison.

What kind of notifications does Amperes 3 offer?

Amperes 3 provides battery charge notification alarms. This feature alerts you when your battery reaches a certain charge level, helping you manage your device's power efficiently and avoid overcharging or running out of battery unexpectedly.