Circuit Piano: Sound Puzzles

Tune synths & pedals by ear

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

Play 128 circuits free. Accept any friend's challenge. One permanent purchase unlocks all 1,024 circuits and 32 scope channels. No ads or subscriptions. Hear the target. Shape your sound. Find the match before the clock runs out. Play 128 circuits free. Circuit Piano is a sound puzzle game built from live simulations of synths and guitar pedals. Every adjustment changes what you hear. No music theory or electronics experience needed. FIND THAT SOUND Hold GOAL to hear your target, then move the controls to match it. Listen for the difference and watch the waveforms draw closer. Turn a harsh buzz into a warm tone, tame a filter, or dial in a gritty fuzz. KEEP YOUR RUN ALIVE Match each sound before time runs out to build your score. The challenge adapts as you play. Chase your best run and compare scores on Game Center. PLAY WHAT YOU TUNE Use the built-in piano keyboard to play a circuit yourself. Make a pattern with the sixteen-step sequencer, connect a MIDI keyboard for velocity, sustain, and pitch bend, or play live sound through a circuit with the microphone and headphones. Every input and control is included free during the circuit's time limit. Complete unlocks untimed instrument play, including after a solve. START FREE Explore 128 circuits across every difficulty level and four live scope channels. Adjust sliders, knobs, thumbwheels, and ribbons. Turn the detailed circuit boards over to inspect the copper underneath. Play offline without ads or an account. CHALLENGE A FRIEND Send a circuit and your score in one link. Your friend gets the same starting point and a score to beat. Any shared or entered sixteen-character code plays free, including its scope channel for that sitting. Send the higher score back to keep the challenge going. GET THE COMPLETE COLLECTION Circuit Piano Complete is one optional, permanent in-app purchase. Unlock unrestricted access to all 1,024 circuits, all 32 scope channels and untimed instrument play: more synths and pedals to solve, play, and explore. Combine catalog filters to find circuits by number, component, fader count and tuned status. Browse your personal records together and see unique circuit coverage. Individual code records, search, pins and history stay free. Different targets, component builds, and starting settings give familiar circuits a fresh challenge. No subscription. Already paid for Circuit Piano or its permanent unlock? Everything stays included. Restore purchases with the same Apple Account. MADE FOR iPHONE AND iPAD • Play offline, with no account required • Sync progress privately with iCloud • Game Center leaderboard and achievements • Apple Pencil tilt for fine control on iPad • Hardware keyboard commands • VoiceOver, Dynamic Type, Reduce Motion, and Dim Flashing Lights support • No ads or tracking Designed for headphones. Made for listening.

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Run clocks now begin with your first move. Gold lamps carry your clears forward, and a buzzer-beater can add to your run score. A fuse keeps your run alive through a timeout, with a chance to recover on the next circuit. We also refined the goal preview, circuit variety, accessibility, and the Complete purchase screen.

The developer, FreshBizOpps, LLC, 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.

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

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

    Seller
    FreshBizOpps, LLC
    Size
    23.4 MB
    Category
    Puzzle
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 FreshBizOpps, LLC