210+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our modular synthesis list covers 210+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (37) | No | No | May 2026 |
| 2 |  | Free was $19.99 | 4.6★ (57) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.9★ (27K) | No | No | Jul 2026 |
| 4 |  | Free | 4.8★ (1.1K) | Yes | Yes | Jul 2026 |
| 5 |  | $14.99 | 4.9★ (666) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.8★ (44) | No | Yes | Jun 2026 |
| 7 |  | $14.99 was $29.99 | 4.9★ (892) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.2★ (3K) | No | Yes | Jul 2026 |
This app allows users to create and manipulate complex synthesizer sounds using a modular interface. Build up to eight synthesizers simultaneously, controlling them via an on-screen keyboard, step sequencer, or external MIDI devices. Fine-tune audio with built-in effects and an equalizer.
Create and shape sounds with a professional-grade modular synthesizer environment. Explore a vast library of modules for synthesis and sound design, with the option to expand your toolkit with premium instruments and effects. Available across Apple devices for seamless workflow.
This is a free, open-source professional synthesizer app for iOS devices. It offers over 300 presets, MIDI support, a sequencer, and vintage-inspired filters. Learn music production basics and create your own sounds.
Explore multidimensional sound design and performance with this polyphonic synthesizer. Create unique evolving soundscapes by navigating sonic universes and sculpting fluid sounds. Features a built-in keyboard, MPE support, and a diverse library of timbres.
This app offers a comprehensive Eurorack-style modular synthesizer environment for creating custom synths, audio/MIDI effects, and controlling other applications. It features a vast library of modules and integrates with hardware and software for flexible music production and live performance.
Create unique sounds by drawing waveforms, adjusting filters, and controlling parameters with LFOs. Explore a vast sound palette with factory presets or build your own. Supports MIDI, AudioUnit, and live recording for track creation.
This app recreates a legendary modular synthesizer for mobile devices. Explore its iconic modules, experiment with sound design, and create music with intuitive controls and advanced features.
Transform your voice into a musical instrument with a suite of advanced audio effects. Create robotic voices, harmonies, and unique soundscapes using only your voice. Save and share your creations, or integrate them into your digital audio workstation.
Create beats, melodies, and basslines with a powerful yet easy-to-use music studio in your pocket. Sketch song ideas on the go, experiment with instruments and effects, and connect with other music apps. Unlock more sounds and features as you progress.
Create dynamic, layered music with a unique visual interface. Explore ambient drones, intricate rhythms, and share your creations with a global community. Unlock advanced tools and MIDI support with an optional upgrade.
This is a powerful, cross-platform modular synthesizer and pattern-based music sequencer. It offers a wide range of built-in synthesizers, effects, and sample support for creating complex musical compositions.
This app is a digital recreation of a legendary analog synthesizer, offering classic sound design with modern features like polyphony, an arpeggiator, and a looping recorder. Explore vast sonic possibilities with included presets or craft your own unique sounds.
Create unique, evolving sonic experiences with a novel wavetable sequencer inspired by vintage synths. Draw your own waveforms, explore a vast library, and connect to external keyboards or DAWs. Record your creations directly within the app.
Create custom synthesizers, audio effects, and MIDI processors with a modular music-making tool. Arrange modules on lanes to process signals and route them internally or with your host DAW. Explore a vast library of modules to craft unique sounds.
This app creates evolving musical textures by repeating notes that gradually fade. It offers a meditative experience and is ideal for ambient music creation. Users can record and export their creations in various formats.
Explore the world of creepiness with this horror synthesizer. Create original, unsettling textures and sounds for your music or immersive soundscapes. Adjust parameters like chorus, reverb, and delay to craft unique, eerie audio experiences.
This app creates unique synth sounds by recording classic synths to VHS tape and then resampling them. It offers a vast library of presets and effects to achieve lo-fi, retro vibes for various music genres. An AUv3 plugin and standalone app are included.
This app offers a flexible sound design experience, allowing users to build beats, create synthesizers, and process audio with effects. Its innovative modular system simplifies connections and organization, making it suitable for both beginners and experienced musicians. It functions as a standalone application or a plugin within a DAW.
This app offers an intuitive mobile wavetable synthesizer with a virtual analog filter. It features a harmonic table keyboard layout that highlights scales for easy improvisation and chord playing. The free version provides extensive sound design capabilities, while a pro upgrade unlocks MIDI controller functionality.
This app generates evolving musical patterns and melodies using polyrhythms. It offers extensive sound manipulation with a sampler, multiple effects, and the ability to store numerous configurations. Users can also import their own sounds and integrate with other music production tools.