Metrometer is a user friendly, simple metronome, with a display of various beat length measurements. It has a useful bookmark feature for saving common tempos.
To set a tempo:
Enter a tempo by tapping the numbers. Tap Calculate.
To mute or unmute the metronome:
Tap the on/off switch under the text "Sound:"
To make small adjustments to the tempo:
Tap the + or - symbols next to the tempo on the results screen.
To save a bookmark:
Tap Save on the the results screen.
To view the bookmarks:
Tap the book symbol on the main screen.
To delete a bookmark:
1) Tap the Edit button at the top left of the bookmarks page, tap the minus symbol next to the unwanted bookmark, and tap Delete.
2) Swipe right across the row of the unwanted bookmark, and tap Delete.