Metronome
Big, clean and free. Tap the tempo, set your time signature, and go. Nothing to install and no account needed.
100beats per minute
No sound? On an iPhone or older iPad, check the silent switch on the side. Newer iPads have no switch, so swipe down for Control Centre and tap the bell. Either one mutes this even when the volume is up.
Space start / stop · ↑ ↓ tempo · T tap