# Radio K vs Sonic Atlas Project

The clearest difference is ads: Radio K at none against Sonic Atlas Project's shown. Radio K also leads on monetization model (free vs ad-supported) and ratings volume (29 vs 3). Sonic Atlas Project's advantage is rating (5.0 vs 4.6) and update cadence (monthly vs every 3 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sonic Atlas Project holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Radio K has 29 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 91% of Radio K's written reviews are positive against 100% of Sonic Atlas Project's.

Radio K ships an update every 3 months, Sonic Atlas Project monthly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Radio K | Sonic Atlas Project |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (29 ratings)](https://appshunter.io/ios/app/radio-k/id597011707/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sonic-atlas-project/id6754346403/reviews)** |
| Number of ratings | **29** | 3 |
| Positive reviews | 91.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 52 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Sara Miller](https://appshunter.io/developer/597012110) | [VUXO I, CORP.](https://appshunter.io/developer/1144164576) |

## What reviewers say

### Radio K

[App page](https://appshunter.io/ios/app/radio-k/id597011707)

Stream live, award-winning independent music from the University of Minnesota's student-run radio station. Discover eclectic old and new tracks, specialty shows, and cutting-edge cultural coverage.

**Highlights:** Live radio stream, Independent music, Eclectic variety, Specialty shows, Cultural coverage

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎵 Great music discovery
- 👍 Simple and intuitive app
- 🌍 Listen anywhere
- 📻 High-quality audio
- ✨ Beautiful application

**What reviewers complain about**

- 🐛 App stops playing audio
- 🐛 App stalls loading live music
- 🐛 App stopped loading
- 🐛 App stuck in 'connecting' mode
- 🐛 App not working on older devices

**Reported bugs**

- Audio stops playing every few minutes
- App stalls when loading live music
- App stopped loading when opened
- App stuck in 'connecting' mode on iPhone 4S

**Requested features**

- Fix audio stopping bug
- Improve app loading stability
- Make app compatible with older devices
- Member channel to mute pledge drives


### Sonic Atlas Project

[App page](https://appshunter.io/ios/app/sonic-atlas-project/id6754346403)

Explore and contribute to a global library of real-world soundscapes. Discover the unique audio environments of various locations and document your own experiences for others to hear.

**Highlights:** Explore diverse soundscapes, Contribute personal sound recordings, Compare sounds across locations, Discover changing audio environments, Listen to real-world audio

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Radio K free?

Radio K is free to download, with no in-app purchases.

### Is Sonic Atlas Project free?

Sonic Atlas Project is free to download, with no in-app purchases.

### Which has better reviews, Radio K or Sonic Atlas Project?

Sonic Atlas Project is rated higher. Radio K averages 4.6 out of 5 from 29 ratings, while Sonic Atlas Project averages 5.0 from 3 ratings.

### Do Radio K or Sonic Atlas Project have ads?

Sonic Atlas Project shows ads; Radio K does not.

### Which is updated more often, Radio K or Sonic Atlas Project?

Radio K ships an update every 3 months, and Sonic Atlas Project monthly. Most recently, Radio K was updated on November 1, 2026 and Sonic Atlas Project on October 30, 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.*