# Radio Unit vs Hilda Synthesizer

The clearest difference is price: Radio Unit at $6.99 against Hilda Synthesizer's $12.99. Hilda Synthesizer's advantage is update cadence (every 9 days vs every 2 months) and rating (4.9 vs 4.6). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Radio Unit costs $6.99 and Hilda Synthesizer $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hilda Synthesizer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 60 and 59 respectively. Written reviews point the same way: 81% of Radio Unit's written reviews are positive against 90% of Hilda Synthesizer's.

Radio Unit ships an update every 2 months, Hilda Synthesizer every 9 days. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Radio Unit | Hilda Synthesizer |
| --- | --- | --- |
| Price | **$6.99** | $12.99 |
| Rating | [4.6 (60 ratings)](https://appshunter.io/ios/app/radio-unit/id1545928014/reviews) | **[4.9 (59 ratings)](https://appshunter.io/ios/app/hilda-synthesizer/id6447191659/reviews)** |
| Number of ratings | **60** | 59 |
| Positive reviews | 81.5% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 6 MB |
| Requires iOS | 15.6 | **12** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Bram Bos](https://appshunter.io/developer/325340444) |

## What reviewers say

### 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


### Hilda Synthesizer

[App page](https://appshunter.io/ios/app/hilda-synthesizer/id6447191659)

This app offers a complex oscillator monosynth with a blend of west-coast and east-coast synthesis techniques. It features a wave folder, lowpass gate, 12-mode filter, and VCA circuit, all meticulously circuit-modelled for authentic analog or digital sound. It functions as a playable synth, MIDI sequencer, and audio effect.

**Highlights:** Complex Oscillator Monosynth, Wave folder and lowpass gate, 12-mode filter, Circuit-modelled analog sound, Built-in 16-step MIDI Sequencer, Audio effect for external audio, AUv3 compatibility

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Radio Unit free?

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

### Is Hilda Synthesizer free?

Hilda Synthesizer costs $12.99, with no in-app purchases.

### Which has better reviews, Radio Unit or Hilda Synthesizer?

Hilda Synthesizer is rated higher. Radio Unit averages 4.6 out of 5 from 60 ratings, while Hilda Synthesizer averages 4.9 from 59 ratings.

### Do Radio Unit or Hilda Synthesizer have ads?

Neither Radio Unit nor Hilda Synthesizer shows ads.

### Which is updated more often, Radio Unit or Hilda Synthesizer?

Radio Unit ships an update every 2 months, and Hilda Synthesizer every 9 days. Most recently, Radio Unit was updated on November 3, 2026 and Hilda Synthesizer on November 12, 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.*