# XRAY.FM vs KALX

The clearest difference is rating: XRAY.FM at 4.9 against KALX's 4.2. XRAY.FM also leads on review sentiment (100% vs 75%) and ratings volume (81 vs 9). On price, ads, in-app purchases and monetization model there is nothing between them.

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

XRAY.FM holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: XRAY.FM has 81 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 100% of XRAY.FM's written reviews are positive against 75% of KALX's.

XRAY.FM ships an update every 5 months, KALX every 10 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | XRAY.FM | KALX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (81 ratings)](https://appshunter.io/ios/app/xrayfm/id1076489204/reviews)** | [4.2 (9 ratings)](https://appshunter.io/ios/app/kalx-fm/id6738583355/reviews) |
| Number of ratings | **81** | 9 |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 41 MB | 46 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [XRAY](https://appshunter.io/developer/1076489203) | [University of California, Berkeley](https://appshunter.io/developer/413373017) |

## What reviewers say

### XRAY.FM

[App page](https://appshunter.io/ios/app/xrayfm/id1076489204)

Listen to live radio with DVR-like controls, browse program schedules, and access on-demand content. Save favorite programs, share stories, and use the alarm clock to wake up to your preferred station.

**Highlights:** Live streaming with DVR controls, Program schedule viewing, On-demand content access, Bookmark programs for later, Share stories and programs, Sleep timer and alarm clock

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### KALX

[App page](https://appshunter.io/ios/app/kalx-fm/id6738583355)

Listen to UC Berkeley's student and community radio station live from your device. Stream broadcasts from 90.7 FM and the web, bringing campus radio wherever you go.

**Highlights:** Live radio streaming, Access to 90.7 FM broadcast, Web stream access, UC Berkeley student radio

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is XRAY.FM free?

XRAY.FM is free to download, with no in-app purchases.

### Is KALX free?

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

### Which has better reviews, XRAY.FM or KALX?

XRAY.FM is rated higher. XRAY.FM averages 4.9 out of 5 from 81 ratings, while KALX averages 4.2 from 9 ratings.

### Do XRAY.FM or KALX have ads?

Neither XRAY.FM nor KALX shows ads.

### Which is updated more often, XRAY.FM or KALX?

XRAY.FM ships an update every 5 months, and KALX every 10 months. Most recently, XRAY.FM was updated on November 1, 2026 and KALX 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.*