Ahns Metronome

Polyrhythm, MIDI, mixed meter

Free · In‑App Purchases · Designed for iPad

One precision metronome for practice, composition, and the stage. A low-latency native audio engine schedules every tick at the sample level, so the beat never drifts at any tempo. Six metronome modes • Basic — Standard meters like 4/4, 3/4, 6/8, 9/8, 12/8 with 8th/16th/32nd and triplet/sextuplet subdivisions and accents. True 6/8 notation (dotted quarter = one beat). • Advanced — Build patterns slot by slot: accents, off-beats, ghost notes, and rests, with subdivisions, swing, and multi-bar phrases on one screen. Reproduce jazz shuffle, Latin clave, and Balkan rhythms exactly. • Polyrhythm — Any ratio — 2:3, 3:4, 4:5, 5:7 and beyond — with up to four simultaneous tracks. Made for progressive rock, contemporary classical, and African/Indian music. • Metric Modulation — Alternate A/B meters over a shared pulse to shift tempo, from classic modulations (dotted quarter = quarter) to arbitrary ratios. • Mixed — Enter and play songs whose meter changes bar to bar (5/8 → 7/8 → 4/4). Perfect for Stravinsky, metal, and prog-rock. • Visual Pulse — Show the beat as a silent on-screen flash for loud rehearsal rooms or silent practice. Precise tempo control • 20–400 BPM in 0.1 steps via a haptic dial and keypad. • Tap tempo with five calculation methods and a precision readout. • A three-level beat indicator (accent / normal / ghost) shows exactly where you are. Turn practice into progress • Training courses that ramp the tempo automatically up to your goal, built in bars or seconds. • A practice journal that logs every session automatically — and turns any log into a course. Stage and gear • Setlists that save BPM and meter per song and switch with a swipe on stage. • MIDI: a clock master that sends standard MIDI Clock (24 PPQN) to external gear over USB or BLE, with live tempo changes while sending. Practice together • Share courses, presets, and practice logs to the community and download them right from the web. • Create friends and groups to control who sees what. Make it yours • Nine sound sets and distinct accent/normal vibration. • Beat light — flash a single beat or the full screen in any color. • Five themes (Dark, Galaxy, Wood, Sapphire, Plum) and a wide layout for tablets and foldables. • Korean and English. Use the core features right away, no account required. Premium Some advanced features — Training, MIDI, Setlist, and more — are Premium, available via in-app purchase or by watching a rewarded ad.

Ratings & Reviews

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• External keyboard: Space to play/stop, Up/Down for BPM, Left/Right for songs. • The base note value is kept per mode and no longer shifts your tempo. • Fixed previous song settings lingering in a setlist. • Fixed sound or the notification remaining after you stop. • Fixed the notification's Stop button not responding. • Fixed swing being capped at 75% when set to 90%. • Fixed polyrhythm layers sharing one color in light theme. • Fixed premium features locking while offline.

Version 1.5.0

The developer, Byung Wook Ahn, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • User Content
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Byung Wook Ahn
Size
56.5 MB
Category
Music
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
  • 4+
  • This app is rated 4+ with content restrictions.

    Some content may be rated higher, and may therefore be restricted and managed by the developer through in-app controls.
  • Learn More
  • In-App Controls
    Age Assurance

    Contains
    Advertising
    User-Generated Content
In-App Purchases
Yes
  • Premium 1 Year $19.99
  • Premium 6 Month $12.99
  • Premium 3 Months $7.99
  • Premium 1 Month $2.99
  • Learn More
Copyright
© 2026 Byung Wook Ahn
  • Developer Website
  • Privacy Policy

    • More by Byung Wook Ahn

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