A precise, no-frills metronome with tap tempo, custom accents, subdivisions, and presets — built for practice that demands real control over the click.
Scrub a fluid tempo ruler from 30–300 BPM, or tap along and let Cordys estimate it for you.
Set beats per measure and give each one its own accent level, from silent to strongly emphasized.
Split each beat into eighths, triplets, or finer subdivisions to lock in any rhythmic feel.
Choose a warm pulse, a sharp tic, or a noise-burst click — whatever cuts through your instrument.
Save up to 8 full setups — tempo, accents, subdivisions, and sound — for instant recall.
Keep an eye on the current tempo from the Lock Screen and Dynamic Island while it plays.
Having trouble with Cordys, or have feedback or a feature request? Reach out and I'll get back to you.
Cordys is designed to work entirely on your device. This policy explains what that means in practice.
Cordys does not collect, transmit, or share any personal data. There is no analytics, no advertising, and no account or sign-in.
None of this information ever leaves your device, is sent to me, or is shared with any third party.
Cordys does not use any third-party analytics, advertising, or tracking services.
Since Cordys collects no data of any kind, it does not knowingly collect information from anyone, including children.
If this policy ever changes, the update will be posted on this page.
Questions about this policy can be sent to andres.robert@icloud.com.
Last updated: August 21, 2026.