Transform two iOS devices into a powerful wireless stereo speaker system. Enjoy amplified music at home, in the office, or anywhere you go. Connect with a friend's device for an even bigger sound experience.



195+ iOS apps curated and reviewed
Looking for free stereo to mono apps? 14 of our 195+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.



Transform two iOS devices into a powerful wireless stereo speaker system. Enjoy amplified music at home, in the office, or anywhere you go. Connect with a friend's device for an even bigger sound experience.


This audio plugin expands the stereo width of mono signals to create a more immersive sound. It uses a unique algorithm to ensure phase coherence, preventing muddiness and maintaining signal integrity when summed to mono. Achieve up to 200% stereo width for an exaggerated, wide effect.




This audio plug-in allows music producers to manipulate the stereo width of their mixes. It offers controls for adjusting the side signal, adding depth effects, and auditioning stereo components. Requires an AUv3-compatible host app.


This audio processing tool allows users to manipulate stereo width, apply mid/side processing, and use independent channel filters. It integrates with other music apps and supports MIDI controllers for real-time adjustments.


Analyze stereo image imbalances and frequency correlations in real-time. Ensure your audio content is high quality and compatible with mono down-mixes, crucial for mobile entertainment. This tool offers detailed waveform inspection and balance spectrum analysis.


This audio utility app allows musicians to adjust stereo width and fold down stereo signals to mono. It functions as an AUv3 plugin for compatible hosts, offering real-time phase correlation metering and output gain control. It's designed for seamless integration into music production workflows.


This app offers a powerful yet intuitive mono-synthesizer for creating a wide range of sounds, from deep basses to sparkling arpeggios. It features a user-friendly interface with tactile controls and a randomizer for sonic inspiration, along with factory presets and purchasable sound packs.


This audio plugin creates a stereo effect by introducing a subtle delay to one audio channel. It offers precise control over the delay time and can be managed via MIDI. Ideal for enhancing mono audio sources with a wider soundstage.


This audio processing tool allows users to visually manipulate the stereo image of digital audio. It functions as a mastering effect, enabling real-time adjustment of stereo width and the recovery of mono compatibility. The app includes a correlograph for visual feedback and optimization.


Transform two iOS devices into a powerful wireless stereo speaker system. Enjoy enhanced audio for music, podcasts, and more, with adjustable stereo effects and synchronized visuals. Perfect for home, office, or shared listening experiences.


This audio effect application provides a unique combination of oscillating reverb, modulation, and feedback delay. It can be used to create a wide range of subtle to extreme soundscapes within compatible music production software.


This audio plugin allows precise control over the stereo width of audio across four adjustable frequency bands. It's designed for mastering engineers to manage bass frequencies while maintaining a wide stereo image in other ranges. Features include solo controls for each band and a visual vectorscope.


Access a wide selection of popular Colombian radio stations in a single, user-friendly application. Stream your favorite music and talk shows over your internet connection, even while using other apps. Enjoy continuous updates for improved quality and station availability.


This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.


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.


This app provides authoritative reviews, informed recommendations, and helpful advice on audio components, judged by their music reproduction quality. It offers monthly issues with expert opinions and insights for audiophiles.


This audio unit plugin creates a subtle delay between stereo channels, mimicking the Haas effect for a wider, more natural stereo image. It offers precise control over small delays and includes pitch modulation when changing delay times.


Experience high-quality audio playback and control your Sony audio devices. Stream music from various sources, including Hi-Res files, and optimize sound settings for an immersive listening experience at home or on the go.


This application serves as a remote control for specific heavy duty and marine stereos. It allows users to manage source selection, playback, volume, EQ, and balance settings.


This app offers professional audio equalization and sound enhancement for music lovers. Fine-tune frequencies, apply effects like bass boost and reverb, and enjoy stunning visualizations. Supports local files and streaming audio.