Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.






216+ iOS apps curated and reviewed
The best 76477 complex sound synth apps on iPhone average 4.5★ across 216+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.






Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.






Generate pure tones, frequencies, and waveforms to test audio equipment like speakers and headphones. Ideal for professionals and enthusiasts seeking to ensure optimal sound quality through customizable frequencies and noise generation.





Effortlessly create original music and lyrics with AI. Generate professional-quality tracks from text prompts, choose vocal or instrumental, and explore diverse genres. All creations are royalty-free for your projects.


Create music and perform live with this beat maker and DJ studio. Play loops, jam with instruments, and remix tracks using a vast sample library and pro-grade effects. Import your own sounds and connect MIDI controllers for advanced production.


This app is a professional audio editor and song creator for multiple devices. It offers AI-powered music generation, vocal/instrument separation, video audio editing, and extensive audio effects. Create, mix, and master your sound with advanced multitrack editing and format conversion tools.


Transform any sound into a playable instrument with this powerful synth and sampler. Create custom instruments, layer sounds, and perform with your unique audio creations. Supports SoundFonts and offers advanced synthesis features.


Create professional music with a user-friendly interface. Easily make beats, record audio, add effects, and even auto-tune vocals. Share your creations with a global community or export them for use in other digital audio workstations.


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.


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 professional-quality music and unique tracks with a variety of styles and sound packs. Utilize instruments, FX, and sequencing for creative sound design. Learn through beat school lessons and share your creations instantly.


This app provides a comprehensive music production environment for mobile devices. It features a virtual keyboard, a multi-track sequencer, and a wide array of studio-quality instruments and real-time effects. Users can record, edit, and mix their music with professional-level tools.


This mobile recording studio and audio editor helps users sound professional with intuitive tools. It offers automatic pitch correction, background noise removal, and a variety of effects. Users can record vocals, process existing audio/video, and even extract vocals from songs.


Create deep, earth-shattering bass lines and custom electronic drum sounds. This powerful synth offers a lightweight yet robust tool for musicians across various electronic genres. It functions as a standalone app and an AUv3 plugin, allowing for seamless integration into your existing music production workflow.


This app provides desktop-grade audio editing tools on your mobile device. It features a multi-track editor with numerous effects, an AI vocal separator, and a robust audio recorder. It's designed for music and podcast creators needing a convenient, on-the-go solution.


This app uses AI to separate vocals and instruments from any song, allowing musicians to create custom backing tracks. It also offers features like pitch and speed adjustment, chord detection, and lyric transcription.


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 dragging your finger across the screen. This application offers a simple yet engaging way to explore audio textures and generate music.


Transform your musical ideas into fully produced songs with AI. Describe your desired sound, use your voice, or generate lyrics effortlessly. No musical experience is needed to create unique tracks across various genres and share them globally.


This app transforms your imagination into studio-quality songs with AI. Describe your vibe to generate complete tracks with vocals and instrumentals, or refine existing ideas with advanced editing tools. Create and share your music on the go, no prior experience needed.


Access a vast library of over 300 unique sound effects and button noises. Customize your experience with features like favorites, search, pitch shifting, and background changes. Offers child-safe options and a stop button for immediate sound termination.