# Sinusoid vs Radio Unit

The clearest difference is rating: Sinusoid at 4.9 against Radio Unit's 4.6. Sinusoid also leads on price ($4.99 vs $6.99) and iOS requirement (9.0 vs 15.6). Radio Unit's advantage is review sentiment (81% vs 69%) and ratings volume (59 vs 13). On update cadence, ads, in-app purchases and device support there is nothing between them.

Sinusoid costs $4.99 and Radio Unit $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sinusoid holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 13 and 59 respectively. Written reviews complicate that: 69% of Sinusoid's written reviews are positive against 81% of Radio Unit's, so the app with the better star average is not the one people write more warmly about.

Sinusoid ships an update every 3 months, Radio Unit every 2 months. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Sinusoid | Radio Unit |
| --- | --- | --- |
| Price | **$4.99** | $6.99 |
| Rating | **[4.9 (13 ratings)](https://appshunter.io/ios/app/sinusoid/id416624795/reviews)** | [4.6 (59 ratings)](https://appshunter.io/ios/app/radio-unit/id1545928014/reviews) |
| Number of ratings | 13 | **59** |
| Positive reviews | 68.8% of reviews | **81.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 2 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Erik Sigth](https://appshunter.io/developer/385275335) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### Sinusoid

[App page](https://appshunter.io/ios/app/sinusoid/id416624795)

Create music with a retro 8-bit inspired sound machine. Features 4 channels for tones and drums, with extensive sound sculpting options like filters, modulation, and effects. Export your creations and integrate with other music apps.

**Highlights:** 4 sound channels (3 tones, 1 drum/noise), Extensive audio parameters (envelope, vibrato, glide, filter), Ring modulation and FM synthesis, Arpeggiator, delay, and bit crusher effects, MIDI input and output support, Audiobus, IAA, and AUv3 integration, AIFF export and in-app music player

**Features:** Vision Pro support

**In-app purchases:** none


### Radio Unit

[App page](https://appshunter.io/ios/app/radio-unit/id1545928014)

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.

**Highlights:** 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

**In-app purchases:** none

**What reviewers like**

- 💡 Great for sampling and soundscapes
- 👍 Integrates well with other apps (AUM, Drambo, Logic Pro, Cubasis)
- 🎵 Wide variety of radio stations
- 🚀 Easy to use standalone and as AUv3
- ✨ Song recognition feature

**What reviewers complain about**

- 🐛 Cannot remove recognized songs
- 🐛 Cannot remove favorite saved songs (Mac)
- 🐛 Some stations don't connect or have connection issues
- 🐛 Loading times can be long
- 🐛 No way to disable auto-song detection

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked questions

### Is Sinusoid free?

Sinusoid costs $4.99, with no in-app purchases.

### Is Radio Unit free?

Radio Unit costs $6.99, with no in-app purchases.

### Which has better reviews, Sinusoid or Radio Unit?

Sinusoid is rated higher. Sinusoid averages 4.9 out of 5 from 13 ratings, while Radio Unit averages 4.6 from 59 ratings.

### Do Sinusoid or Radio Unit have ads?

Neither Sinusoid nor Radio Unit shows ads.

### Which is updated more often, Sinusoid or Radio Unit?

Sinusoid ships an update every 3 months, and Radio Unit every 2 months. Most recently, Sinusoid was updated on September 25, 2026 and Radio Unit on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*