Best FRMS alternatives: apps like FRMS - Granular Synthesizer

8+ similar apps compared and reviewed

4.7 avg rating
0 free apps
Updated November 2026

Whether you want more options like FRMS or a completely different take on the same concept, our curated list of 8+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to FRMS

OtherDesertCities#1

OtherDesertCities by Audio Damage, Inc.

Multi-Algorithm Delay
Editor's Choice
🎵 Music
4.8(59 ratings)
$6.99
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Explore a versatile audio effect with six unique delay algorithms, offering everything from classic stereo delays to experimental granular pitch-shifting. Extensive modulation and I/O controls allow for deep sonic manipulation and creative sound design.

Hilda Synthesizer#2

Hilda Synthesizer by Bram Bos

Complex Oscillator Synth
Strong Contender
🎵 Music
4.9(58 ratings)
$12.99
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This app offers a complex oscillator monosynth with a blend of west-coast and east-coast synthesis techniques. It features a wave folder, lowpass gate, 12-mode filter, and VCA circuit, all meticulously circuit-modelled for authentic analog or digital sound. It functions as a playable synth, MIDI sequencer, and audio effect.

Tera Pro#3

Tera Pro by Harry Gohs

Modular PolySynth
Worth Considering
🎵 Music
4.6😊(154 ratings)
$6.99In-App Purchases
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Explore a vast array of sound synthesis methods, from analog emulations to modern digital techniques. Combine modules for unique sonic textures, enhanced by an intelligent interface and realtime visual feedback. Expand your sound palette with additional modules available through in-app purchases.

What We Love

  • 🎵 Exceptional sound quality and versatile synthesis capabilities
  • 💡 Innovative modular workflow with flexible architecture
  • 🎛️ Extensive preset library (1000+ presets)
  • 🔧 Powerful sound design tools with multiple synthesis types
  • 📱 Available on both iOS and macOS (M1)
  • 🎹 Excellent IAP modules (BrainZ, Waves, FM7, RingZ)
  • 🎨 Visual feedback with oscilloscope displays
  • 🎯 Responsive filter with great resonance
  • 🔄 Useful randomize function for patch generation
  • ⚡ Strong arpeggiator with multi-lane capabilities
  • 🎪 Dual-layer synthesis engine for complex sounds
  • 🌙 Dark mode support
  • 🎚️ Excellent MPE implementation

Room to Improve

  • 🎮 Steep learning curve and complex UI
  • ⌨️ Unconventional on-screen keyboard design
  • 🐛 Frequent crashes and stability issues
  • 🔊 Dangerously loud output without limiter
  • ⚙️ UI elements sometimes unresponsive or laggy
  • 💾 Hidden file structure makes backup difficult
  • 🎹 Key Hold feature buried in menus
  • 🔒 Locked layer editing (can only edit one at a time)
  • ⚠️ Some presets produce noise or no sound
  • 🖥️ High CPU usage on older devices
  • 📱 Battery drain issues in AUM on iPad
  • 🎚️ Wavetable oscillator sometimes silent
  • ❌ No MIDI Panic button readily accessible

More apps like FRMS

4
tardigrain
tardigrain
tardigrain
by Erik Sigth
$5.99

Create unique sounds by breaking down samples into small fragments and playing them back non-linearly. Explore granular synthesis with adjustable grain size, direction, and step size. Enhance your audio with built-in effects, filters, and modulation options.

Granular synthesis engineAdjustable grain parametersBuilt-in effects (reverb, wave shaper, crush)
🎵 Music
(99)
paid
5
Silo - Granulator and Reverb
Silo - Granulator and Reverb
Silo - Granulator and Reverb
by Unfiltered Audio
$9.99

This app offers a powerful tool for sound designers and musicians, combining granular synthesis, spatialization, and reverb. It allows users to break down audio into tiny grains, manipulate their position in the stereo field, and apply diverse reverb effects to create unique soundscapes.

Granular synthesis engineStereo spatializer with motion algorithmsMultiple reverb algorithms
🎵 Music
(32)
paid
6
Fluss - Granular Playground
Fluss - Granular Playground
Fluss - Granular Playground
Tactile Granular Synthesizer
$13.99

Explore granular synthesis with a tactile interface. Import, record, or live-process audio to create unique sound textures, drones, and echoes. Features kinetic sliders for dynamic modulation and a unique shimmer feedback effect.

Granular synthesis engineImport, record, or live process audioKinetic sliders for modulation
🎵 Music
(72)
paid
7
Replicant 3
Replicant 3
Replicant 3
Real-Time Glitch & Slice FX
$4.99

This real-time audio effect processor captures, loops, and mangles audio on the fly. It offers advanced sequencing with per-step probability and direction, alongside four distinct slice effects for creative sound design. Control dynamics with envelope crossfading and trigger slices manually or via MIDI.

Real-time audio slicing and manglingAdvanced step sequencer (3-16 steps)Four distinct slice effects (Stutter, Delay, Redukt, Ring Mod)
🎵 Music
(4)
paid
8
RingsFX
RingsFX
RingsFX
Physical Modelling Resonator
$14.99

This music app emulates a renowned physical modeling synthesizer, offering diverse synthesis techniques and polyphonic capabilities. It allows for real-time parameter manipulation and can process external audio, creating unique sonic textures and rhythms.

Physical modeling synthesis emulationMultiple polyphony modes (Mono, Duo, Quad, True Polyphonic)Supports MIDI MPE and velocity sensitivity
🎵 Music
(27)
paid