Ive been using this app for about 2 weeks on my iPhone 6 plus; and I must say, it works like a charm! For me, this app has rarely given me problems. It has only crashed a handful of times; compared to how much Ive used it though, thats a miracle. I do have a couple of gripes. Please add a search function and a song list. This app only has albums, collections, artists, and playlists. I wish it would have a collection of all of my songs too! It would make playing songs continuously much easier. Also, please improve the playlist function. Right now, it is very inconvenient to add or subtract songs from playlists. Overall, its a great app for flac music. If you have a large library like me, youll definitely need this app. Also, the sound quality is superb. One last request-I know the name doesnt suggest this-but can you guys please allow it to play other files like wav, alac, etc. Thanks for this awesome app! Update: 10/27/2015 Actually I lied it does crash a lot, unfortunately. Can Dan Leehr please create a more stable, user friendly app that also plays other files. This app is the best sounding music app, but it has its drawbacks. I really wish this thing could play WAV, APE, and other files. Please improve this one and make an update or make another app with this sound quality that plays all music files!