The best.

I’ve been using Dr. Betotte since the iPhone and iPad were but twinkles in Steve Jobss eyes (It was originally a shareware desktop app). It’s always been my favorite as I require a loud percussive metronome sound, which few apps have been able to achieve. What’s more, is this app offers the specific Dr. Beat sounds of my favorite devices - especially my beloved DB-66. I highly recommend this app. It’s well worth the price, considering actual metronomes go for about 10 times that. Enjoy!

sublicon about Dr.Betotte Metronome, v3.5