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Jazz91 KCSM-FM

Jazz91 KCSM-FM

Jazz91 KCSM-FM

67 ratings
61 reviews
With Ads
🎬 Entertainment
🎵 Music
Free
With Ads

Details

Released
April 14, 2011
Updated
March 14, 2026

Features

Developer

KCSM
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About

Listen to a diverse range of jazz music, including Bop, Cool, Latin, and Blues, 24/7. Enjoy commercial-free broadcasts from the San Francisco Bay Area with excellent sound quality.

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

What users say about Jazz91 KCSM

Reviews of Jazz91 KCSM are mixed: the Entertainment app is rated 3.5/5 from 67 App Store ratings. What users like most: great music selection, good sound quality. Top complaints: airPlay not working, intrusive ads. Summarized from real user reviews.

Positive things

  • 🎶Great music selection
  • 🎧Good sound quality
  • 📱Track ID on lock screen
  • 👍Better than other platforms
  • 🌟Supports public radio
  • 📻Reliable streaming (for some)
  • 💡Playlist feature for song info
  • 🚀Works on Apple Silicon Mac
  • ✨Digital output to DAC fixed

Negative things

  • ❌AirPlay not working
  • 📺Intrusive ads
  • 🐛Buggy and inconsistent performance
  • 🚫App doesn't work (blank screen)
  • 📉Stops when phone locks/app minimized
  • 🔇Ads stop music playback
  • 😵Ugly UI and hard to read
  • 🎛️No in-app volume control
  • 🐌Slow or non-real-time playlist
  • 👎Poor user experience
  • 🗑️App needs to be trashed
  • 🧱App is a step backwards
  • 🖱️Play/pause button issues
  • 😵‍💫Hard on the eyes
  • 🔌Malfunctions constantly
See all reviews

What's New in Jazz91 KCSM

12.0.5

March 14, 2026

Bug fixes and performance improvements.

User reviews

Most RecentHighest RatedLowest Rated

Doesn’t AirPlay anymore

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!
33glot

Sleep timer needs work

What happened to the control that let you choose an AirPlay target?
33glot

Fabulous Station, Buggy App

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.
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Bbabblerouser

Music great, app not

KCSM is a wonderful and important station. It is not well served by this buggy and ad-plagued app.
VVerite25

Simply doesn’t work.

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.
SRSF Red
See 56 more reviews

User experience

🐞

Reported Bugs

33 issues

Doesn't AirPlay anymore

Bug

Sleep timer needs work

Bug

Drops signal completely at random

Bug

Simply doesn't work

Bug

App doesn't work (blank screen and silence)

Bug

Shuts off every time the phone locks or the app is minimized

Bug

Ads pop-up almost constantly and stop the music

Bug

App stops playing when screen is dark or app is minimized

Bug

Live stream kept dropping

Bug

Disconnects frequently

Bug

App crashes

Bug

Play/pause button within the app does not work

Bug

App somehow continues playing through phone's speakers after closing and disconnecting Bluetooth

Bug

App keeps crashing on iPad 2

Bug

Sleep timer's CANCEL button doesn't do anything

Bug

Alarm clock doesn't work if device is put to sleep

Bug

Share button for Facebook didn't work

Bug

App refuses to respond to slide up play button

Bug

Regularly stops streaming at intervals

Bug

App doesn't show on App Store search

Bug

Latest version is buggier

Bug

Cannot open menu or select i icon when streaming

Bug

No in-app volume control

Bug

When phone locks, black screen with volume control, no visual indication of KCSM

Bug

App doesn't work since iOS8 update

Bug

App prevented iPad 1 users from listening

Bug

No volume control

Bug

No playlist

Bug

Latest version of the app is still ugly

Bug

App doesn't work with AirPlay

Bug

App won't play on speakers anymore, only on phone

Bug

Pause button switches back to Play a few seconds later

Bug

App doesn't switch to digital out when headphone amp/dac is plugged in

Bug
✨

Requested Features

14 requests

Put AirPlay control back

Feature

Improve sleep timer

Feature

Make Mac version a full app

Feature

Add year of track release

Feature

Click through to album notes/Amazon

Feature

Dark mode option

Feature

Change background image/font color

Feature

Link to buy songs/albums

Feature

Clarify red bar under song

Feature

Put ads towards the bottom

Feature

Add a sleep mode

Feature

Support for retina display

Feature

Remove or change bottom buttons

Feature

Stop the slideshow

Feature

FAQ

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.