# JAM FM vs Kontra K App

The clearest difference is review sentiment: Kontra K App at 100% against JAM FM's 55%. Kontra K App also leads on rating (5.0 vs 4.3). JAM FM's advantage is update cadence (every 2 weeks vs every 5 months) and ratings volume (39 vs 3). On price, ads, 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.

Kontra K App holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: JAM FM has 39 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 55% of JAM FM's written reviews are positive against 100% of Kontra K App's.

JAM FM ships an update every 2 weeks, Kontra K App every 5 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | JAM FM | Kontra K App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (39 ratings)](https://appshunter.io/ios/app/jam-fm/id330639820/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/kontra-k-app/id6450722008/reviews)** |
| Number of ratings | **39** | 3 |
| Positive reviews | 54.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | **Free** | Ad-supported |
| Size | 45 MB | 55 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Digital Media Hub GmbH](https://appshunter.io/developer/1128409556) | [Letzte Woelfe GmbH](https://appshunter.io/developer/1657500755) |

## What reviewers say

### JAM FM

[App page](https://appshunter.io/ios/app/jam-fm/id330639820)

Stream your favorite music and enjoy entertaining hosts. Create personalized playlists and use the sleep timer for a relaxing end to your day. Explore different music channels for a fresh beat.

**Highlights:** High-quality music streaming, Entertaining radio hosts, Personalized playlist creation, Sleep timer function, Multiple music channel options, Up-to-date music selection

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

**In-app purchases:** none


### Kontra K App

[App page](https://appshunter.io/ios/app/kontra-k-app/id6450722008)

Access exclusive content, livestreams, and behind-the-scenes looks from your favorite artist. Interact with posts, stream music, and shop to earn points that unlock community rewards and giveaways.

**Highlights:** Exclusive content, Livestreams, Behind-the-scenes access, Fan chat, Loyalty points system, Community rewards, Contests

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is JAM FM free?

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

### Is Kontra K App free?

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

### Which has better reviews, JAM FM or Kontra K App?

Kontra K App is rated higher. JAM FM averages 4.3 out of 5 from 39 ratings, while Kontra K App averages 5.0 from 3 ratings.

### Do JAM FM or Kontra K App have ads?

Neither JAM FM nor Kontra K App shows ads.

### Which is updated more often, JAM FM or Kontra K App?

JAM FM ships an update every 2 weeks, and Kontra K App every 5 months. Most recently, JAM FM was updated on October 23, 2026 and Kontra K App on October 21, 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.*