GridNotes app icon

Apps Like GridNotes for iPhone and iPad

Play piano with grid keys and MIDI

Play piano using a grid-based key layout. Select MIDI voices and adjust scales. Enable sticky keys for practice. Adjust note duration and velocity. Save and load custom configurations.

by Jason Pepas★ 5.04 ratingsMusicFreeData updated 2026-09-06

GridNotes screenshots

Ranked alternatives

Showing 701–720 of 1,000 ranked alternatives.

  1. John Cage Piano app icon

    John Cage Piano

    Larry Larson

    Play the prepared piano sounds.

    The app allows users to play the sounds of a prepared piano on their iPad. It features meticulously sampled sounds from a piano prepared with materials used by John Cage for his Sonatas and Interludes.

    ★ 4.84 ratingsMusic$0.99Data updated 2026-10-02
  2. bismark DamperPedal - CC#64 app icon

    bismark DamperPedal - CC#64

    bismark LLC

    Mobile MIDI damper sustain pedal controller.

    The app transforms a mobile device into a MIDI damper pedal. It sends MIDI Control Change #64 messages, supporting CoreMIDI and Bluetooth MIDI for musicians and producers.

    ★ 5.03 ratingsMusic$0.99Data updated 2026-09-29
  3. Hohner SqueezeBox app icon

    Hohner SqueezeBox

    Michael Eskin

    Play a virtual accordion anywhere, anytime.

    The app offers a virtual accordion with a responsive fingerboard, playing in five tones. It allows musicians to practice scales and songs, with options for headphone use or amplified performance.

    ★ 3.97 ratingsMusic$4.99Data updated 2026-09-17
  1. Infinite Piano traumbaum app icon

    Infinite Piano traumbaum

    Afra Masuda

    Calm piano music without end.

    The app offers an unending piano composition designed for relaxation. Users can control playback and set a sleep timer for the music.

    ★ 5.06 ratingsMusicFreeData updated 2026-10-18
  2. HarpNinja Diatonic Harmonica app icon

    HarpNinja Diatonic Harmonica

    Paul Cohen

    Play notes and learn scales

    Learn with pitch recognition and basic music theory. Play and record notes, visualize scales and chords. Access tuning guides and practice exercises. Sync lessons across devices and adjust interface for different screen sizes.

    ★ 0.00 ratingsMusic$19.99Data updated 2026-09-09
  3. RoboTone. app icon

    RoboTone.

    MASAHIRO MIZUTANI

    Play piano tones and beat robo

    Learn tones by playing piano notes and identifying sounds. Play battles to recognize tones and select correct answers. Track progress and improve absolute listening skills for children.

    ★ 1.01 ratingsEducationFreeData updated 2026-09-08
  4. Theremin I/O app icon

    Theremin I/O

    FFFF00 Agents AB

    iPhone becomes a touchless music instrument.

    The app transforms an iPhone into a touchless music instrument using the camera and flash to detect hand distance. This input generates tones through an old-school synthesizer with various sound presets and scale options.

    ★ 4.05 ratingsMusic$2.99Data updated 2026-10-17
  5. HarmonyWiz app icon

    HarmonyWiz

    Wizdom Music LLC

    Generate harmony from one line.

    The app generates multi-part harmony from a single musical line. It offers harmonic analysis and displays Figured Bass.

    ★ 4.54 ratingsMusic$9.99Data updated 2026-10-12
  6. Vocal Scale Trainer PRO 15 app icon

    Vocal Scale Trainer PRO 15

    ZEN APP

    Tune instruments and practice pitch

    Check singing pitch and tune instruments with real-time feedback. Practice scales including major, minor, pentatonic, and harmonic minor. Record audio sessions and adjust pitch. Customize keyboard labels and color themes. Use a metronome for timing.

    ★ 1.01 ratingsMusic$2.99Data updated 2026-09-06

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.