BTR AMP funktioniert nicht

BTR AMP is focused on getting YOUR music library onto your device, organizing YOUR music library on your device, and listening to YOUR music library. - play all popular lossless, lossy, and Hi-Res (i. e. - metadata tag editor for all relevant tags - ID3, iTunes, etc. - background playback - control via lock screen, headphones, Bluetooth car stereo, etc.  Cancel at least 24 hours before the trial ends to avoid regular monthly or yearly membership subscription fees.  We have put thousands of hours into creating BTR AMP and plan on putting thousands more into making it the only music player app for iOS worth using.  BTR AMP is the premier alternative to the native iOS Music app, especially for people who own more than a few albums, and even more so for those with carefully curated non-iTunes libraries.  The free trial requires signing up for the monthly or yearly subscription.  BTR AMP is a membership service with a free one-month trial.  If you absolutely love BTR AMP, purchase the Infinity Membership as a one-time purchase!  All memberships allow unlimited use across all of your devices.  We read every single one of your reviews.  If you enjoy using BTR AMP please take a minute to leave us a nice review, thank you!