Ticker Metronome funktioniert nicht

It can tick from 15 to 400 BPM, beatmatch with two taps, display classical tempo markings, play in the background or while the device is locked / asleep, and save tempo presets.  Use the handy tone generator for tuning, practicing solfege, playing melodies, or exploring intervals and chords.  Ticker is a super-accurate, super-audible metronome that helps you make music more precisely.  Beats are positioned to 1/44100ths of a second, which provides sample-accurate timing that is stable and rock solid.  Forget about the metronome and focus on the music - this app will stay out of your way.  For anyone learning classical music, just tap on the word and you'll be up to speed.  Use this app to take your music skills to the next level and make music with greater precision.  Keeps going and going and going while you use other apps, or even while the display is off.  Simply tap along with the beat of your song to get the tempo. Great for DJs too.  Adjusting the tempo never felt so good!  Scrolling provides a winning combination of freedom and control.  This high-pitched tick is audible even while you play or sing along.  You'll never want to touch a circular dial again.  Save tempos for practicing later. Add a name if you like.  Unlike wooden metronomes: no winding up, no slowing down.  And no cheesy drum sounds either.