Radio K vs Sonic Atlas Project
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radio K
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.
- Live radio stream
- Independent music
- Eclectic variety
- Specialty shows
- Cultural coverage
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A live radio stream from Radio K (KUOM), the award-winning student-run radio station of the University of Minnesota, playing an eclectic variety of independent music both old and new. Radio K is listener-supported radio that educates students, breaks ground in musical programming, and provides cutting-edge cultural coverage through its Specialty Shows and Culture Queue. Radio K - Real College Radio
Sonic Atlas Project
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.
- Explore diverse soundscapes
- Contribute personal sound recordings
- Compare sounds across locations
- Discover changing audio environments
- Listen to real-world audio
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The Sonic Atlas Project captures what the world sounds like and how that changes over time. Inspired by San Francisco's KALW "Natural State" radio segment, this app is designed to let you explore soundscapes as well as contribute your own. Explore soundscapes: Listen to what Steamer's Lane in Santa Cruz sounds when the waves are 15-18 feet. Compare the backyard bird chatter across different neighborhoods. Hear a busy San Francisco mid-market intersection. Contribute your own: Off to see the sandhill crane migration? Sailing the bay? Watching a dragon dance for Chinese New Year? Grab a soundscape for others to enjoy.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Radio K | Sonic Atlas Project |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (29 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 91.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 29 — better | 3 |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 10 MB | 52 MB |
| Age rating | 4+ | 12+ |
| Developer | Sara Miller | VUXO I, CORP. |
Customer experience
Radio K
Sonic Atlas Project
Bugs and requests
Radio K
Reported bugs
4 issues- 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
4 requests- Fix audio stopping bug
- Improve app loading stability
- Make app compatible with older devices
- Member channel to mute pledge drives
Sonic Atlas Project
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Radio K
No in-app purchases
Sonic Atlas Project
No in-app purchases
Questions
Is Radio K free?
Is Sonic Atlas Project free?
Which has better reviews, Radio K or Sonic Atlas Project?
Do Radio K or Sonic Atlas Project have ads?
Which is updated more often, Radio K or Sonic Atlas Project?
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