I really like this app. The automated BPM finder is often off, but Ive looked online for one before and from what Ive read they all have that problem. This apps ability to play a metronome in the back ground with variable song and metronome volume and variable metronome speed allows me to find an accurate BPM. What would make the next version really rock would be a feature that automatically updated my iTunes library with the BPM info once Ive confirmed it. (note Ive been using this app for jazz not electronics and Mixing)
Tom Min about BPM Detector, v1.0.2