Works exactly as promised. I use my iPhone 7+ constantly thru the day and often use a lot of my battery. So I do check often see if maybe I should charge with my extra battery while out, or hit the aux. charger in the car or at home or just by checking know that I will make it till the evening, without having to keep pulling my phone out to check it. Apple should incorporate this into the iWatch battery readout. They could have a point on the screen that you could tap when in the phone battery check mode and it would switch between phone & watch. Maybe this is something that the app developer could do so it could be added to a watch face as a complication. Any way great app and works perfectly with my 7+.
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