220+ iOS apps curated and reviewed
The best stereo modulation apps on iPhone average 3.9★ across 220+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $2.99 | 5.0★ (2) | No | No | Jun 2026 |
| 2 |  | Free | 1.9★ (119) | No | No | Jul 2026 |
| 3 |  | Free | 2.5★ (750) | No | No | Jul 2026 |
| 4 |  | Free | 4.6★ (78K) | Yes | No | Jul 2026 |
| 5 |  | Free | 4.6★ (1.4K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.8★ (175K) | Yes | No | Jul 2026 |
| 7 |  | Free | 4.8★ (3.1K) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.0★ (439) | No | No | Jul 2026 |
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.
Transform your mobile device into a wireless remote for your JENSEN stereo system. Control all primary functions, including power, volume, radio, media playback, and audio settings, directly from your phone or tablet. Enjoy a convenient, pocket-sized control for your RV lifestyle.
Enhance your audio experience with this app, designed to control your wireless speaker. Connect multiple speakers for amplified or stereo sound, manage music from two sources, and monitor speaker battery levels. It offers a sleek interface and provides software updates and support.
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.
Discover and experience electronic music through human-curated stations and playlists. Tune into exclusive DJ sets, live broadcasts, and a vast library of genres. Enjoy ad-free listening and higher sound quality with a premium subscription.
Control all your Bose audio products from a single app. Personalize noise cancellation, customize EQ settings, and set up your devices for seamless listening. Access your favorite music services and playlists with one-touch ease.
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.
Control your marine entertainment system wirelessly from your device. Manage music sources, adjust volume zones, and navigate your library with ease. Optimize audio with advanced DSP settings for a premium listening experience on the water.
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 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.
Enhance your music listening with an all-in-one player featuring a powerful equalizer, bass booster, and DJ transitions. Access your music from cloud storage or local files, with offline playback. Customize sound to your taste and enjoy brilliant audio quality.
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.
Enhance your driving experience by connecting your smartphone to a compatible car stereo. This app allows for safer app usage in the car, offers advanced audio adjustment tools, and includes safety support functions like parking assistance.
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.
Control your Panasonic compact stereo system wirelessly from your iPhone or iPod touch. Adjust volume, change settings, and manage playback with an intuitive interface over your home Wi-Fi network.
This audio effect app allows you to add dynamic modulation to your music tracks. Create custom shapes to control various parameters like filter cutoff, resonance, amplitude, and mix for rhythmic and expressive sound sculpting.
Control and enhance audio from various smart speakers and devices. Stream music from multiple services, boost bass and volume, and even use your phone as a microphone. Enjoy an ad-free experience with premium features.
This audio effect app provides a stereo phaser with adjustable rate, depth, feedback, and stereo spread. It functions as an Audio Unit AUv3 plugin for hosts like GarageBand or as a standalone application for real-time audio processing.
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.