# Jazz91 KCSM-FM — Jazz91 KCSM-FM

> 24/7 commercial-free jazz radio from the San Francisco Bay Area. (iPhone/iPad app by KCSM.)

- Source: https://appshunter.io/ios/app/jazz91-kcsm-fm/id430837955 (this page in markdown: same URL + `.md`)
- Developer: [KCSM](https://appshunter.io/developer/430837958)
- Category: Entertainment, Music
- Price: Free
- Rating: 3.40/5 from 62 App Store ratings · 59 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.2 · 12 MB
- Languages: American English, European Spanish
- Released: 2011-04-14
- Data updated: 2026-07-28
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/jazz91-kcsm-fm/id430837955/reviews.md

## What is Jazz91 KCSM?

KCSM-FM Jazz 91.1 - “The San Francisco Bay Area’s Jazz Station”  Bop, Cool, Latin, Mainstream, Blues, Swing, Traditional, World and beyond. Handpicked by veteran announcers from the largest Jazz Radio library in the USA 24 /7/365. Broadcast from the College of San Mateo campus in the San Francisco Bay Area. Featuring our mobile device friendly HE-AACv2 stream for excellent sound quality! Real jazz, all the time and commercial free too!

## Key features

- 24/7 jazz broadcasts
- Commercial-free listening
- Diverse jazz genres
- High-quality streaming
- Veteran announcer handpicked music

## Recent user reviews (10 of 59)

All indexed reviews: https://appshunter.io/ios/app/jazz91-kcsm-fm/id430837955/reviews.md

### 3/5 — Doesn’t AirPlay anymore

*2026-03-15, version 12.0.5*

What happened to the control that let you choose an AirPlay target? Please put it back in so I can play the live stream on my HomePod speakers again!

### 2/5 — Sleep timer needs work

*2026-03-01*

What happened to the control that let you choose an AirPlay target?

### 3/5 — Fabulous Station, Buggy App

*2026-02-05, version 11.0.77*

The performance of this app is inconsistent at best. It works better on some devices than others yet drops signal completely at random on even the most robust networks. 

It seems to perform better on a third party streaming service such as iHeart radio or TuneIn. Help solve this problem by becoming a member and help support keep Jazz alive.

### 1/5 — Music great, app not

*2025-12-26, version 11.0.77*

KCSM is a wonderful and important station. It is not well served by this buggy and ad-plagued app.

### 1/5 — Simply doesn’t work.

*2024-12-13, version 11.0.65*

I was looking forward to listening to jazz while traveling. I’m always hearing about listeners in far flung places- I’m in Florence, Italy and get nothing. Huge disappointment.

### 5/5 — Best App I Have And Perfect For Jazz Heads

*2024-03-23, version 11.0.65*

After moving from the Bay after 20+ years, I still listened to KCSM Jazz 91.1, esp at work, to my favorite station with all my “friends” and familiar voices. I’ve been a listener for a good 15 years. Since I hold antipathy towards tech and apps, it never occurred to me until a few months ago to download it. The track list is impeccably organized and the track ID shows on your phone lockscreen (with the time) and on your car screen, effortlessly. It should also be noted that for a public radio station with low funds, that this is better than Soundcloud and Mixcloud combined is extra cool. Whoever has a complaint about this app is indubitably a jazz dilettante. *This is the first app review I’ve written because… I just don’t care about apps. I’ve never even written a yelp review.

### 3/5 — works on Apple Silicon Mac but…

*2024-01-27, version 11.0.34*

An actual Mac app would offer a better user experience; e.g., (1) pause/mute/resume from Dock or menubar instead of having to open the app window to do so, (2) resize app window: most of the time I just want to listen, I don't care about what the app's window is showing and would prefer to reduce the space it takes when open. I realize this is an iPad app, with iPadOS' UI assumptions and limitations. Just asking for a little more effort to get a full-fledged Mac version

### 2/5 — Greatest jazz station I have ever experienced!

*2023-04-24, version 11.0.34*

But the app is poorly designed and ad driven. The cue was 1:48 behind and very hard to read. Might want to talk to the folks at Radio Paradise about their app which has a simple design and info about the song, artist and album.
Since the app is not very functional, I listen on my sonos most of the time. There is not song info from KCSM on that app either.
That said, I still support the incredible folks that keep this amazing station going! That’s the most important part. Thank you!

### 1/5 — The app doesn’t work

*2023-04-10, version 11.0.34*

I used to listen to KCSM-FM on the app almost every day but now when I open the app all I get is a blank screen and silence. What’s going on?

### 5/5 — Nonpareil

*2022-08-25, version 11.0.34*

Stop right here. All that is needed.

## Frequently asked questions about Jazz91 KCSM

### What kind of music can I listen to on this app?

This app features a wide variety of jazz music, including Bop, Cool, Latin, Mainstream, Blues, Swing, Traditional, and World jazz. The music is handpicked by veteran announcers from a vast jazz radio library.

### Is the music commercial-free?

Yes, the app provides a commercial-free listening experience, allowing you to enjoy uninterrupted jazz music. You can listen 24 hours a day, 7 days a week, 365 days a year.

### Where does this radio station broadcast from?

The station broadcasts from the College of San Mateo campus in the San Francisco Bay Area. It is known as 'The San Francisco Bay Area’s Jazz Station'.

### What is the sound quality like?

The app utilizes a mobile device friendly HE-AACv2 stream, which is designed to provide excellent sound quality for your listening pleasure.

## Version history (last 5 releases)

### 12.0.5 — 2026-03-14

Bug fixes and performance improvements.

### 12.0.4 — 2026-03-10

Bug fixes and performance improvements.

### 12.0.3 — 2026-02-28

Bug fixes and performance improvements.

### 12.0.2 — 2026-02-25

Bug fixes and performance improvements.

### 11.0.77 — 2025-08-01

Bug fixes and performance improvements.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-28.*