Radio Unit vs QuadroSphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radio Unit
Stream over 35,000 internet radio stations with this app. Enhance your audio experience by using it as an AUv3 plugin with other compatible music apps. Discover new music and save your favorites.
- Access 35,000+ radio stations
- Enhance audio with AUv3 plugins
- Intuitive interface
- Song discovery and saving
- Favorites sync across devices
- MIDI control for AUv3 plugin
Read full descriptionHide full description
Discover a world of music with Radio Unit, a sleek and powerful Internet radio player with a built-in Audio Unit (AUv3) plugin. Elevate your listening experience by enhancing streaming audio in real time using your favorite third-party audio processing plugins (not included) within AUv3-compatible hosts like Drambo or GarageBand. Features: • Intuitive Interface: Enjoy a clean, user-friendly design for effortless navigation. • Song Discovery: Tap to add the currently playing song to your favorites, then open it in the Apple Music app or search for it on Google. • Massive Station Library: Access over 35,000 radio stations—search by name, browse by genre or location, and sort by popularity. • Favorites Sync: Save stations and songs to your favorites list, seamlessly synced across your devices. • AUv3 Integration: Use Radio Unit as a standalone app or as an AUv3 plugin in hosts like Drambo, GarageBand, and more, with support for multiple plugin instances. • MIDI Mapping: Control buttons can be triggered by MIDI Note events (C3 to F3). (AUv3 only) • Battery Efficient: Stream music without draining your device. The app requires internet connection.
QuadroSphere
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.
- 4 configurable frequency bands
- Control stereo separation, level, and pan per band
- Create and morph between 12 snapshots
- Modulation control for automated sweeps
- Per-band effects (Haas, Delay, Reverb, Chorus, Compressor)
- Convert mono to pseudo-stereo
- MIDI CC control
Read full descriptionHide full description
QuadroSphere is a great tool for bringing an instrument to life by creating a soundscape with a constantly moving sound source. QuadroSphere splits the incoming audio signal into 4 distinct coloured frequency bands using the frequency bar. Each band has an associated coloured sphere allowing you to control the pan, stereo separation and volume level. You can use this plugin as a way to impose subtle control over stereo placement with little or no movement, or go crazy with random automation. Adding effects such as reverb or delay on a specific frequency band can help create a lush atmospheric swirling which surrounds the listener. This is great for musicians trying to create minimalistic ambient or tranquil soundscapes. You can create up to 12 snapshots of the sphere parameters and effect settings, then morph between them at a designated speed (measured in beats). You can also enable continuous randomization mode, and have full control over which spheres and control which parts are automated. You can also use QuadroSphere as a stereo splitter, using the additional outputs to add your own effects to band outputs. Key Features: ○ 4 Configurable frequency bands. ○ Control stereo separation, level and pan for each band. ○ Create up to 12 Snapshots. ○ Morph between various panning, width and frequency band levels. ○ Modulation control for automated sweeps around pan center. ○ Convert MONO signals into a pseudo-stereo image. ○ Per band Haas, Delay, Reverb, Chorus and Compressor. ○ Allows combined and individual per-band audio outputs. ○ Continuous randomized morphing of the stereo field. ○ Built in Preset Manager with drag and drop support. ○ Power and Solo for each band. ○ Controlable morph speeds. ○ Various animated transition modes. ○ Access most options using AU parameters or MIDI CC control.
Screenshots
Verdict
The clearest difference is price: Radio Unit at $6.99 against QuadroSphere's $14.99. Radio Unit also leads on ratings volume (59 vs 10). QuadroSphere's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 81%). On ads, in-app purchases, chart position and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Radio Unit costs $6.99 and QuadroSphere $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
QuadroSphere holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Radio Unit has 59 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 81% of Radio Unit's written reviews are positive against 100% of QuadroSphere's.
Radio Unit ships an update every 2 months, QuadroSphere every 3 weeks. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.
| Parameter | Radio Unit | QuadroSphere |
|---|---|---|
| Price | $6.99 — better | $14.99 |
| Rating | 4.6 (59 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 81.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 59 — better | 10 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #167 — better | #194 |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | BeepStreet | 4Pockets.com |
Customer experience
Radio Unit
QuadroSphere
Bugs and requests
Radio Unit
Reported bugs
17 issues- Cannot remove recognized songs
- Cannot remove favorite saved songs (Mac)
- Last update ruined experience with loading times and connection issues
- Sadé channel frequently disconnects
- Some stations don’t connect at all
Show 12 moreShow fewer
- Cannot see song title/artist
- Seamless integration with GarageBand and Logic Pro doesn't work
- Cannot change station with MIDI, LFOs etc. after update
- Cubasis 3 can’t find app
- BBC streams no longer play
- Cannot edit user slots after adding of link
- Links not working
- Cannot add user slots ('see the developer to unlock slots')
- Adding stations near impossible
- Failed URL slot flashes red and is inaccessible
- Cannot paste other URLs
- Cannot record and sample the feed into DAW
Requested features
13 requests- Option to remove or filter hostile nations
- Add more stations (Golha radio, IRIB radio)
- Ability to organize, tag, and edit stream specifications
- Ability to use with CarPlay
- Pitch slider within the app to slow down radio in real time
Show 8 moreShow fewer
- More user presets/slots
- iCloud sync for recently played stations and discovered pieces
- Ability to change station with MIDI, LFOs etc. (post-update issue)
- More exposed parameters for tweaking
- Greater resources for slots (folders/sections)
- Import/export presets list
- Assign MIDI CC to volume knob and channel switch buttons
- Support for streams in OGG container format
QuadroSphere
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Radio Unit
No in-app purchases
QuadroSphere
No in-app purchases









