Hardware-grade metronome & tuner
A metronome and tuner that
never guess.
Every click is scheduled on the audio hardware clock, sample by sample. Every pitch is measured with a high-resolution detector and smoothed until the needle settles. Clave doesn't drift, and it doesn't guess.
01 / The timing is the point
Every click lands
on the hardware clock.
Software timers drift. Clave does not. Every click is scheduled on the audio hardware clock, sample by sample, and the new tempo takes effect on the next beat — so the pulse never stumbles mid-bar.
See the whole instrumentSample by sample
Not a software timer. The beat lamps are drawn into the display's extended dynamic range, so on an HDR iPhone the downbeat is above SDR white.
Four layers you mix like a mixer
Quarter, eighth, sixteenth and triplet faders, with accents, swing, presets and a staff view that follows the bar.
A tuner that knows the instrument in your hands
High-resolution pitch detection and a smoothed needle that settles on a note instead of jittering on a number.
02 / The whole instrument
Nine frames.
One very serious instrument.
03 / Watch it work
Change the tempo.
The pulse holds.
From the first click to the final note, Clave keeps the panel out of your way and the signal in focus. This is the free instrument, doing exactly what it promises.
04 / Free is the whole thing
Start complete.
Not a demo.
A complete hardware metronome and a full chromatic tuner, free from the first beat, in ten languages and on both iPhone and iPad. No ads, no account, no subscription.
Start with the beat.
Tempo dial, six rhythm patterns, tap tempo and a click that stays locked to the hardware clock.
05 / Finishes
One instrument.
Pick your finish.
Porcelain
Warm ivory and soft amber. A quiet face for long sessions.
Six of the eleven finishes, shown as you scroll.
06 / On iPad
The same panel.
More room to play.
Clave uses the iPad canvas for a wider stage: portrait, one-handed where it matters, and laid out for a music stand when it doesn't.
08 / Get Clave
ONE PURCHASEOne purchase.
Yours to keep.
Clave is free: a complete metronome and a complete chromatic tuner, not a demo. One purchase then unlocks the full instrument — yours to keep, included in Family Sharing, and never a subscription. It adds four volume layers, a rhythm editor for your own figures, presets, a swing bar, a staff view, a practice log with streaks and levels, widgets, a Live Activity, the Apple Watch app, a strobe tuner and a flashlight beat lamp.