Best apps like RK-601

7+ similar apps compared and reviewed

4.4 avg rating
0 free apps
Updated August 2026

Looking for something like RK? We've analyzed 7+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to RK

SquareAcid - Acid Synthesizer#1

SquareAcid - Acid Synthesizer by James Navarro

Grimey Acid Music
Editor's Choice
🎵 Music
4.3(15 ratings)
$6.99
SquareAcid - Acid Synthesizer screenshot 1
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This app is a unique acid synthesizer inspired by classic hardware. It offers a distinct sound with growls and barks, functioning as a standalone application with Audiobus and Ableton Link support, as well as an AUv3 plugin.

ShapeStage Morphing AUv3 FX#2

ShapeStage Morphing AUv3 FX by Cem Olcay

Shape, Modulate, Morph
Strong Contender
🎵 Music
4.0(4 ratings)
$6.99
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This audio effect processor allows for sophisticated sound transformation with multi-stage processing and a smooth morphing engine. Create evolving, dynamic effects by seamlessly blending between different processing stages, including drive, character, pitch shifting, and texture.

Vatanator#3

Vatanator by BACKPULLVER SOFTWARE LTD OOD

Worth Considering
🎵 Music
4.6(17 ratings)
$7.99
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This app is a drum machine designed for simple and instant rhythm creation. It offers advanced MIDI functionality, 140 vintage hardware emulations, and real-time pattern recording with quantization. It supports various audio integration technologies and allows for sample import and song arrangement.

More apps like RK

4
P930 Lunar Lander
P930 Lunar Lander
P930 Lunar Lander
BBD Delay, Plate Reverb & Sat.
$19.99

This app is a sophisticated audio effect instrument designed to create depth and motion in sound. It combines a plate reverb engine inspired by classic studio units with an analog-style BBD delay, offering extensive control over sonic characteristics and routing.

Plate reverb engine inspired by classic EMT-140Digital reverb diffusion reminiscent of Lexicon 224Analog-style BBD delay with modulation
🎵 Music
(45)
paid
5
shapesynth
shapesynth
shapesynth
by Erik Sigth
$4.99

Create unique retro-inspired sounds by drawing oscillator waveforms. This polyphonic synthesizer offers extensive modulation options, built-in effects, and recording capabilities. Seamlessly integrate with other music apps and hardware for a versatile creative experience.

Draw custom oscillator waveforms16-voice polyphonyArpeggiator and stereo delay
🎵 Music
(24)
paid
6
PulseRipper
PulseRipper
PulseRipper
AUv3 - Add Heart to Your Mix
$9.99

Enhance your audio tracks with rhythmic movement and analog warmth. This tool offers professional-grade processing for producers, sound designers, and performers to add depth, character, and dynamic effects to their music.

Rhythmic modulation systemDynamic wave shapingTube-style distortion
🎵 Music
(8)
paid
7
iMIDIPatchbay
iMIDIPatchbay
iMIDIPatchbay
Advanced Instrument Control
$14.99

Organize your entire MIDI setup from a central point. Easily create split and layer configurations, send program changes, and filter controller data for external sound devices. Store and recall configurations as songs, and manage setlists for performances.

Create split and layer configurationsSend Program Changes and control changesTranspose sounds and rig
🎵 Music
(18)
free with in-app purchases