203+ iOS apps & games curated and reviewed
Nebulous.io is the household name in nebulous theremin synth, but it's far from the only option. We track 203+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.1★ (2.6K) | Yes | Yes | Jul 2026 |
| 2 |  | $2.99 | 4.0★ (15) | No | No | May 2026 |
| 3 |  | $1.99 | 4.9★ (188) | No | No | Jul 2026 |
| 4 |  | Free | 4.6★ (170K) | Yes | Yes | Jul 2026 |
| 5 |  | $2.99 | 3.2★ (6) | No | No | Jun 2026 |
| 6 |  | Free | 3.2★ (65) | No | No | May 2026 |
| 7 |  | Free | 4.5★ (805) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.9★ (29) | No | Yes | May 2026 |
Engage in a multiplayer game where you grow by consuming smaller entities and collecting dots. Avoid larger players while strategizing to become the biggest blob. Enjoy various game modes, customization options, and social features.
Experience the unique sound of a classic electronic instrument with this vintage-styled simulator. It offers multiple oscillator wave shapes, adjustable frequency ranges, and built-in effects for a realistic playing experience. Optimized for touch and Apple Pencil on compatible devices.
This app transforms your device into a musical instrument with an intuitive touch interface and a friendly robot performer. Create and edit unique sounds with a powerful synth engine and apply effects. It's designed for both beginners and experienced musicians, offering features like scale locking for error-free playing and expressive gesture controls.
Discover self-awareness and guidance with personalized horoscopes, birth chart analysis, and live psychic readings. Explore zodiac compatibility, daily insights, and Tarot to navigate life's transitions and foster spiritual wellness.
Create unique soundscapes with this multitouch synthesizer. Record, loop, and overdub your creations, then export them as WAV files to share. Experiment with various waveforms and effects for endless sonic possibilities.
Compete in cash-based tournaments by growing your blob. Collect dots and gobble smaller players while avoiding larger ones to become the biggest blob. Test your skills and win real money.
Navigate a microscopic universe, absorbing smaller cells to grow and evade larger ones. Engage in diverse multiplayer modes, join guilds, and customize your cell to dominate the cellular cosmos. Compete in daily tournaments for rewards and strategic advantages.
Explore unique synth sounds processed through classic guitar overdrive pedals. This app offers professionally recorded samples with multiple keyboard layouts and AUv3/MIDI support. Unlock over 100 additional instruments to expand your sonic palette.
This music app allows users to create tones by touching the screen. Moving a finger changes the sound, offering an intuitive and adjustable musical experience.
Control your Nebula smart projector or soundbar remotely. Navigate menus, type text, and access functions using your mobile device's touchpad, virtual keyboard, and dedicated buttons.
Experience classic 80s FM synthesizer and electric piano sounds with over 300 unique presets. This app offers professional-grade audio, extensive layering for expressiveness, and a full suite of effects. It functions as a standalone app and an AUv3 plugin for music production hosts.
Grow your snake by consuming nectar and energy from defeated opponents. Complete missions, upgrade your abilities, and battle other players to become the largest snake. Collect items to unlock new levels and allies in this competitive arena.
Control audio frequency using your device's motion sensors and touchscreen. Adjust parameters like frequency range, waveform, and effects for each axis.
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.
This app emulates a classic monophonic analog synthesizer with advanced DSP technology. It features three variable wave oscillators, dual ladder filters, an LFO, and two modulation busses for versatile sound design. An intuitive interface and extensive preset library make it ideal for creating thick bass and rich lead sounds.
This app is a monophonic synthesizer for iOS and AUv3 plugins, utilizing Phase Distortion synthesis. It offers dual PD oscillators, sequencers, LFOs, and envelopes for complex sound design. Almost any control can be modulated by multiple sources, with real-time visual feedback.
This powerful wavetable synthesizer app offers an intuitive workflow for creating unique sounds. It features a rich library of wavetables, inspiring presets, and a semi-modular architecture for deep sound design. Easily sync data across devices and integrate with DAWs.
This app faithfully emulates a classic 1980s polyphonic analog synthesizer. It meticulously models the original's circuits, offering its warm sound and signature chorus effect in a software format. It functions as both an AUv3 plugin and a standalone application.
This powerful wavetable synthesizer app offers an intuitive workflow for creating new sounds. It features a rich library of wavetables, inspiring factory presets, and real-time modulation feedback for sound design.
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.