Amperes will allow you to measure the charging speed of your battery.
That depends on your device's charging cable, charger and current device's power usage.
Now you can compare your results with the online submissions of other users.


+ Get the actual charging rate of your battery.
+ Compare different charging cables
+ Compare different chargers
+ Compare different charging sources
+ Make sure you are using optimal cable and charger for your device - test the charging speeds and use only the best combinations.
+ Will notify you when your desired battery level is reached by sounding an alarm.

Did you get a new cable? Find out its quality and how good is it for charging your device with Amperes!
New wall or car charger? Test it's actual output with Amperes!

What’s New

Version 2.1.5

You can now upload your test score online and compare it with other users and apps.
Test limits are temporarily removed.

Ratings and Reviews

4.4 out of 5
334 Ratings

334 Ratings

Ryzon62 ,

Very helpful!

I know some people would like to see this app display how much current the battery is receiving during the charging operation, but that is not possible at this time, as Apple doesn’t make that data available. So, given that limitation, I found this app to be highly useful in showing me the relative charging rates of various cables and power sources. I’ve found the app to be consistent in the results it reports, having tried the same cables multiple times using the same power source, then trying them with a different source. Nicely done....thanks!

gtspeer ,

Perfect App!

Thank You Andrew, this app is perfect for my needs. I have the new iPhone Xs Max with fast charge capability. I purchased several adapters, (usb-c & usb-a) & wireless in both formats. I’m testing various cables by different manufacturers. With your app I am able to test all combinations so I can use the accessories with the best results! Also the ability to label the tests helps me keep my results organized! Great app! Keep up the good work! Update:This was for the full app as far as labeling goes.

Pat6897 ,

Digging it so far

Got the app to determine which wireless charger is best. I bought 5 different wireless chargers, so we’ll see how it goes.

So far, I’ve only used the shorter test, which apparently tests for 2% increase in charge to calculate the average.

I have yet to use the longer test, which should yield a more accurate result. Not sure how many % it’ll look at to calculate the average. We’ll have to find out.

App Privacy

The developer, CrioSoft LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


CrioSoft LLC
32 MB

Requires iOS 10.3 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
In-App Purchases
  1. Unlimited tests $0.99
  2. Remove ADS $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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