ToneCraft

Practice studio in your pocket

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Tuner, metronome, harmony, attack analysis, recording. Everything you need for daily instrument practice. Four themes from paper to brass steampunk. Tone Craft is your all-in-one music practice studio for instrumentalists. Tuner, metronome, harmony (just vs equal temperament beat comparison), attack analysis (waveform and spectrum), recording with waveform playback. Five apps you used to juggle, now consolidated into one. v4.0 is a full rewrite in native Swift. Lighter, faster, and a joy to touch every day. 【Daily practice in one app】 Tuner, metronome, harmony (just vs equal temperament beat comparison), attack analysis (waveform and spectrum), recording with waveform playback. Five apps you used to juggle, now consolidated into one. 【Pro-grade features, daily-touch UI】 The tuner uses the YIN algorithm for high-precision pitch detection. AVAudioSinkNode delivers 20ms low latency. It tracks voice and instruments instantly. The metronome supports irregular meters (5/4, 7/8, 9/8 etc), compound meters, and subdivisions (8th, 16th, 32nd notes). Long-press to reorder measures. The harmony tab lets you switch between just intonation and equal temperament to hear the beating difference with your ears. This unique training tool is missing from other tuner apps. The attack tab captures waveform and frequency content the moment a note begins. Improve your articulation and onset visually. 【Four themes】 Paper: the warm default theme. Dark: black background for long practice sessions. Steampunk (Pro): wood grain, brass, and glowing vacuum tubes. Cat Paws (Pro): playful cat paw prints and cute touches. 【Tone Craft Pro】 A one-time 300 yen purchase unlocks Steampunk and Cat Paws themes permanently, plus any future Pro themes. Choose it as both a visual treat and a way to support development. 【For existing users】 Your custom rhythms and settings carry over from v2.0. The Classic mode keeps the original interface intact. Switch anytime from Settings. 【Privacy】 All processing stays on your device. Recordings and tuning history never leave your phone. 【For】 Wind ensemble students, music college students, vocalists, brass and string players, anyone touching an instrument every day.

Ratings & Reviews

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[v4.0.1 Bug Fixes] The reference frequency setting (442Hz, etc.) is now correctly applied to Harmony tones, the Tuner reference pitch, and the cent display. Sliding the value updates currently playing tones in real time. Fixed beat length calculation for compound time signatures like 6/8. When combining 4/4 and 6/8 in a sequence, the tempo now progresses musically correctly. The BPM display now explicitly shows ”BPM" so the tempo unit is clear at a glance.

Version 4.0.1

The developer, Daisaku Seto, 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 Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • Daisaku Seto
    Size
    • 1.9 MB
    Category
    • Music
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • iPad
      Requires iPadOS 18.6 or later.
    • Mac
      Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 2.6 or later.
    Languages
    • English and Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Daisaku Seto
  • Developer Website
  • Privacy Policy

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