Ampere

This app is extremely good if you want to simply but accurately detect which of your chargers or charging methods are working properly. It lets you really know exactly which ones work the best or might be underperforming. This also applies to your cables too. I found that my best charger charged 10 times faster with my best cable (2600 MAh on Samsung S8) compared to my least performing cables with the same excellent charger. Extremely easy and clear to use

Great App! Only needs 1 thing.. A log! Or at the very least I need to be able to see minium and maximum charge rates once it's fully charged.. I don't want to watch the device the entire time and if I look to late then the app goes blue and says fully charged and the maximum charge amps is gone.. so would be nice if the app outputted a text file or something with a log of minimum and maximum charge rates and discharge rates organized with date and time... If Ampre did that it would be perfect!

I like the app. If there was one item I would like to have added into the interface, it would be to display the input voltage. My phone can fast charge at 9V, but when using a USBC charger which outputs 5V3A and 9V3A, I would like to know which voltage the phone selected. Not terribly important, but sometimes more information is nice. Thanks for the great app!

Was looking for this app since smartphones entered my life(long ago). F***ING perfect. Now I know the condition of the battery. Went so far as to connect lab quality measurement equipt. to verify Ampere's relativistic accuracy. All recorded data matched that of this apps displayed data, differing only in the third decimal place!! Phenomenal! This may differ from phone to phone, but on my Nokia it's F****ING perfect. Found & installed `lockscreen widgets' app and put all Ampere's widgets onthel/s

Lack of customization in paid version is disappointing. Widgets are good only when they fit user's wallpapers & color theme. Therefore, there should be as much as possible customization options available. Personally,I would like to see options to turn off a flashing dot on the widget, set own text colors for top and bottom widget parts, background colors for top and bottom widget parts, incl. alpha transparency settings, etc. I hope the developers will implement them soon to earn all 5 stars.

I Loved this Functional App so much that I bought the Pro Version to support it. The only reason that I gave it 4 Stars is because, even though it gives you the option to show 3 things that you can display at the top in your drop down info bar, you CAN'T really display ALL 3 of the choices that it allows you, because it'll OVERCROWD the area in the BAR and CUT THEM OFF. Also if you test the Alarms in the settings Menu, the Alarm Icons STAY STUCK in your Info Bar without ANY WAY to CLEAR THEM?

Works well. But struggles to stay conected to my Note 10+ were another ap has very little trouble doing so. Other than that. It is a well designed app and very informative. Edit Works wonders with Samsung Note 20 Ultra. Very Acurate.

It's absolutely awesome to be able to see if a charger, cable or adapter is slowly charging your device! Saves a lot of trouble and hours of testing or can save you from having your battery charged 5% over 3 hours time! Very good app!

Really cool design with awesome capabilities to see how the battery of your device degenerates / generates electrical energy at different rates. Really helpful with determining the charger to use.

App shows incorrect amperage. The charging adapter is rated 6.5A at 10V, but the app always shows 2.5-3.5A. Needless to say, I use the OEM charging set, which charges two individual battery cells. The app probably only shows data for one of the cells, thus making the information invaluable.

Does what it says. Great insight into the whole charging process. Each update has added value to this app. And it is one of the smallest pieces of software installed on my device. This is one of the few apps I NEVER even consider uninstalling from my device. My HIGHEST RECCOMENDATION!!!

So nice to find an easy to use app for measuring battery and charging performance, good for weeding out the loose, low amp cables I have mounting up. No overly intrusive ads, great experience all around.

Today I opened the app to see if this gas station was cheap enough to put 500mha chargers, they are. But while at it, I said, damn, every time I use this app, I get no ads, no popus, it doesn't annoy me with notifications, I didn't even ask me to give a review, and on top of that is easy to use, looks good and works very accurately. So I think these are the best kind of reviews you can give. To say, I'm gonna tell random people, that this is great, because I WANT TO. Kuddos to the devs !

Does exactly what it says on the tin, few if any ads, has dark mode, win win all around . Forget if it detected dark mode or I set it manually.

So far so good apps for charging voltage measurments, simply, & UI friendly. Somehow, the measurment show different from real adapter charging that suppose to be. Occur bugs for OS Marshmello, but its okay. Keep it up

Loving this app and decided to activate pro features for a dollar. But tbh, I feel like I kinda wasted that dollar cause the widget is 1x1 and the text is miniature despite the fact that the size is adjustable, it's still too small. I'm using it on my tablet and I have to put it right next to my face to be able to read the stats. I hope the widget is at least strectchable so it can accomodate spaces on the screen better and of course.... LARGER FONTSIZE.

Does what it says, can't confirm accuracy but seems to be on top of it. The time to measure is a little annoying, but really only when you're testing multiple cords/ adapters in quick succession for peak performance. Not to be misleading, the measurements are displayed quick enough to avoid any testing of patiences, as well as amps. My suggestion would be to include a feature enabling the user to label and record sets of data, so when performing tasks such as I had been doing it is easier to remember which cords or adapters had the peak (or desired) output. All in all, a great app I wish I'd found sooner, thanks developers!

Honestly, I like it. I recently bought a new charger that was supposedly super fast, but surprise, when I get home it doesn't even charge one single bit, and I paid a bit of money for it. So I downloaded the app and tested it out with a few other charges and figured that it must have been the cable. Went back to store the next day, got a new cable, came home and tried it out and it works, turns out it really was the cable.

One of the few apps worth paying for pro. Having the live current measurement displayed in the notification bar is a game changer. I'm constantly using that data to change how I'm using the phone. A quick glance up top confirms that there isn't an app or process pulling an unacceptable draw. Also, it's very useful when charging. I can quickly confirm that it's a good connection and not thermal throttling the input to the battery.

i have finally been able to sort through all my chargers and cords and can see why my phone has had intermittent performance. While driving taxi, I use it for dispatch: running GPS, answering calls and using bluetooth at the same time. Some days it would drain even while plugged in to charge. this app has revealed the culprits quite easily. thanks. I have used this app for almost two years now, still use it all the time , it answers questions I cant ask anyone else. Thankyou.

This app has been invaluable for finding out which cable and power source is working properly for charging. You can clearly see the significant difference between a power USB cable and a data cable. Likewise a smart charger and an ordinary one. The only additional feature that I would like to see would be some type of log feature that would show the variation in current over the charge period.

Wasn't sure whether the problem was with the cable, battery, or the adapter. I installed this app in 2 phones and used 2 cables to test where the problem was. It easily pinpointed the problem to be with one of my cables. It saved me some cash. I was about to buy a complete charger. Excellent work guys. Commercial-grade App.