The installation runs without any problems, the app runs smoothly and trouble-free on my S3 Mini. Good news is that the app only requires the necessary access permissions.
I use the app as an addition to my Kindle, mainly when I'm traveling and the Kindle itself can not take. So I can in breaks, in the S-Bahn or in case of unexpected delays just my current book more, even if there are only a few pages.
Both devices are connected at my home to the wireless network. This ensures that both devices are synchronized via the Whispersync function and any time know which side of the book, I stopped reading. This makes it possible on both devices independently voneinader more can.
Can be accessed through the app on all your downloaded his books and also has the opportunity to shop in the Kindle Store. I have not been used, I'll do better at home in peace and quiet on the PC.
The app has a host of settings, such as font size, line spacing, the size of the side edge, the background colors (white, sepia, black) as well as the brightness to match the personal needs. The well-known from the Kindle possibility to write notes to passages is also here. Too bad that one of the reading progress is also reported here only by percentage rather than by page number. But you get used to it quickly.
Overall, a really well-executed app as a perfect complement to the Kindle. There are of me 5 stars and a clear recommendation download.