Dont listen to the trolls, these good reviews are real people, or at least I am anyway!

Honestly, I have no idea how this app works, and I was very skeptical at first. However, my battery stays charged longer since using this app. Works better than expected! This app is legit; I know because I have had iPhones without this app, and the battery sucked over time. This app sounded like a scam, but I promise you that it works from experience. Ive been using it for over 5-6 years now and its awesome! And Im just a regular Joe like you, and a very cynical one at that! It works! It WILL make your battery last longer over time, just so long as you do the full charge from under 20% to full, without interruption at least once a month. Thats crucial. Love it! Five stars, two thumbs up, and a big smiley emoji; A+. Get this app!

Supermonkey1230 about Battery Life Magic Pro: The Battery Saver, v7.92