ButterSynth app icon

Apps Like ButterSynth for iPhone and iPad

by Arto Vaarala★ 4.062 ratingsMusic$19.99Data updated 2026-09-22

ButterSynth screenshots

Ranked alternatives

Showing 681–700 of 1,000 ranked alternatives.

  1. Delay3000 Vintage Modern app icon

    Delay3000 Vintage Modern

    Nembrini Audio S.r.l.

    Apply delay effects to audio tracks

    Delay processing plugin with 16 stereo multitap patterns and repetition hold function. Includes modulation circuit, ducking, and filter sections. Syncs to DAW and offers delay effects. Adjusts delay time and feedback parameters.

    ★ 5.018 ratingsMusic$7.99Data updated 2026-09-23
  2. Pianist Pro app icon

    Pianist Pro

    MooCowMusic Ltd.

    Virtual piano designed for iPad.

    The app offers 16 professionally recorded instruments, a full recording and overdub facility, and live MIDI control. It includes a built-in arpeggiator, drum machine, and effects for creating musical compositions.

    ★ 3.73 ratingsMusic$4.99Data updated 2026-09-13
  1. MIDIKeys - MIDI Controller app icon

    MIDIKeys - MIDI Controller

    Michael Eskin

    MIDI keyboard controller for synthesizers

    The app sends MIDI messages to synthesizer apps and hardware. Users can transpose the entire range up or down and select fixed or variable note velocity.

    ★ 3.416 ratingsMusicFreeData updated 2026-09-13
  2. Delta-Z app icon

    Delta-Z

    Euclidean Instruments, LLC

    ★ 4.01 ratingsMusic$2.99Data updated 2026-09-06
  3. Knorr app icon

    Knorr

    Klevgrand Produkter AB

    ★ 4.36 ratingsMusic$8.99Data updated 2026-09-20
  4. MF-103S 12-Stage Phaser app icon

    MF-103S 12-Stage Phaser

    Moog Music Inc.

    Modulate audio with effects

    Adjust audio signals with a voltage-controlled and a wide-range LFO. Modulate frequency and depth parameters. Connect to MIDI devices and integrate with modular synthesizer systems.

    ★ 5.07 ratingsMusic$14.99Data updated 2026-09-06

How we rank alternatives

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