This audio effect plugin offers vintage-style digital reverb with a unique "freeze" function for infinite sustain. It allows for extensive customization of reverb decay, stereo width, and filtering, all while being CPU-efficient.



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Alien Box is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.



This audio effect plugin offers vintage-style digital reverb with a unique "freeze" function for infinite sustain. It allows for extensive customization of reverb decay, stereo width, and filtering, all while being CPU-efficient.


Enhance your music production with a modern, high-quality reverb effect. This Audio Unit Extension (AUv3) works within compatible host apps, offering a rich, hall-like sound with adjustable parameters for diverse textures. Easily tweak settings with its expandable controls.


This audio effect plugin provides a high-quality chorus inspired by the Roland Dimension D, offering a versatile sound without muddy low end. It integrates seamlessly with iOS DAWs and supports expanded controls for easy tweaking.


This professional-grade subtractive synthesizer allows for crafting a wide range of dynamic sounds with an intuitive interface. It features an advanced modulation matrix, configurable LFO graphs, and classic analog filters, plus eight built-in effects. Supports MIDI and AUv3 for seamless integration with mobile DAWs.


This audio effect plugin creates a dense and spacious stereo chorus sound by independently processing left, center, and right channels. It offers adjustable modulation rates and depths for each channel, allowing for unique sonic textures.


This intuitive FM synthesizer works as an Audio Unit Extension plug-in for music production apps. It features six stereo operators, customizable algorithms, and built-in effects. Manage presets and precisely enter parameter values with a numeric pad.


This app is a compact, semi-modular synthesizer designed for generative music creation. It offers a comprehensive set of modular functions, aiming for analog-like sound and behavior with unique digital effects and an 'Instability Engine' for organic fluctuations.


Transform ordinary audio into unique sonic textures, evolving soundscapes, and rhythmic glitches. This app offers precise control over sound manipulation with a unique pitch controller, multiple LFOs, and a flexible multi-effect chain. Create complex and immersive audio transformations in real-time.


This audio effect plugin transforms mono sound into stereo, adding width and depth. It uses micro-delays to create a natural sense of space, with optional LFO modulation for a Leslie speaker-like effect without pitch shifting. Ideal for creating separation in mixes, especially for guitars and vocals.