Comparison

Jazz91 KCSM vs WPKN

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Jazz91 KCSM

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.

Highlights
  • 24/7 jazz broadcasts
  • Commercial-free listening
  • Diverse jazz genres
  • High-quality streaming
  • Veteran announcer handpicked music
Features
Read full description

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!

About

WPKN

Listen to a diverse range of free-form programming, including music, news, and arts & culture, from an independent community radio station. This non-profit organization supports local artists and provides a platform for volunteers interested in broadcasting.

Highlights
  • Live radio streaming
  • Eclectic programming mix
  • News and public affairs
  • Arts and culture content
  • Support for local artists
  • Volunteer opportunities
Features
Read full description

STREAM WPKN NOW! Cited as “the greatest radio station in the world,” in 2021 by David Owen of The New Yorker, WPKN independent community radio station is a 10,000-watt non-commercial radio station founded in 1963 and established as an independent, 501(c)3 nonprofit organization in 1989. Over the last 60+ years, WPKN has remained true to some basic principles to stand apart from convention and to serve diversity. Its volunteers and programmers have created an institution with depth, importance, and passion, and the listeners have made its continued existence possible. WPKN broadcasts 24 hours a day on frequency 89.5 FM from a 10,000-­-watt transmitter located on Booth Hill in Trumbull, Connecticut reaching a potential listenership of 1.5 million people. Our signal reaches most of Connecticut, southeastern New York State, the eastern portion of Long Island, southwestern Massachusetts, and southwestern Rhode Island. The wpkn.org stream allows for an unlimited number of global listeners. Operating 24/7 and largely run by volunteers, WPKN offers a unique and eclectic mix of live and recorded music, news, public affairs, spoken word, arts & culture and other free-form programming which defy genre. We are proud to be listener-supported, commercial-free, community-driven radio available to the public at no cost, any time, day or night. WPKN is a community organization that amplifies tri-state area non-profits, artists, musicians. WPKN’s downtown station presence allows volunteers interested in broadcast radio, podcasting, video, and community outreach, to explore and build on their creative interests for free, with all levels of backgrounds and training accepted.

Screenshots

Jazz91 KCSM4 screens
WPKN4 screens

Verdict

The call

The clearest difference is review sentiment: WPKN at 100% against Jazz91 KCSM's 43%. WPKN also leads on rating (5.0 vs 3.5). Jazz91 KCSM's advantage is update cadence (every 6 months vs every 18 months) and ratings volume (67 vs 6). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

WPKN holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Jazz91 KCSM has 67 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 43% of Jazz91 KCSM's written reviews are positive against 100% of WPKN's.

UpkeepUpdate frequency

Jazz91 KCSM ships an update every 6 months, WPKN every 18 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Jazz91 KCSM versus WPKN: the parameters behind the verdict, then further details
ParameterJazz91 KCSMWPKN
PriceFreeFree
Rating3.5 (67 ratings)5.0 (6 ratings) — better
Positive reviews42.6% of reviews100.0% of reviews — better
Number of ratings67 — better6
Update frequencyEvery 6 months — betterEvery 18 months
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.218.2
Further details — not scored
Size12 MB12 MB
Age rating4+4+
DeveloperKCSMBrendan Toller

Customer experience

Jazz91 KCSM

All ratings62 ratings
Positive53.2%
Neutral12.9%
Negative33.9%
Written reviews61 reviews
Positive42.6%
Neutral11.5%
Negative45.9%

WPKN

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Jazz91 KCSM

Reported bugs

33 issues
  • Doesn't AirPlay anymore
  • Sleep timer needs work
  • Drops signal completely at random
  • Simply doesn't work
  • App doesn't work (blank screen and silence)
Show 28 more
  • Shuts off every time the phone locks or the app is minimized
  • Ads pop-up almost constantly and stop the music
  • App stops playing when screen is dark or app is minimized
  • Live stream kept dropping
  • Disconnects frequently
  • App crashes
  • Play/pause button within the app does not work
  • App somehow continues playing through phone's speakers after closing and disconnecting Bluetooth
  • App keeps crashing on iPad 2
  • Sleep timer's CANCEL button doesn't do anything
  • Alarm clock doesn't work if device is put to sleep
  • Share button for Facebook didn't work
  • App refuses to respond to slide up play button
  • Regularly stops streaming at intervals
  • App doesn't show on App Store search
  • Latest version is buggier
  • Cannot open menu or select i icon when streaming
  • No in-app volume control
  • When phone locks, black screen with volume control, no visual indication of KCSM
  • App doesn't work since iOS8 update
  • App prevented iPad 1 users from listening
  • No volume control
  • No playlist
  • Latest version of the app is still ugly
  • App doesn't work with AirPlay
  • App won't play on speakers anymore, only on phone
  • Pause button switches back to Play a few seconds later
  • App doesn't switch to digital out when headphone amp/dac is plugged in

Requested features

14 requests
  • Put AirPlay control back
  • Improve sleep timer
  • Make Mac version a full app
  • Add year of track release
  • Click through to album notes/Amazon
Show 9 more
  • Dark mode option
  • Change background image/font color
  • Link to buy songs/albums
  • Clarify red bar under song
  • Put ads towards the bottom
  • Add a sleep mode
  • Support for retina display
  • Remove or change bottom buttons
  • Stop the slideshow

WPKN

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Jazz91 KCSM

No in-app purchases

None

WPKN

No in-app purchases

Questions

Is Jazz91 KCSM free?
Jazz91 KCSM is free to download, with no in-app purchases.
Is WPKN free?
WPKN is free to download, with no in-app purchases.
Which has better reviews, Jazz91 KCSM or WPKN?
WPKN is rated higher. Jazz91 KCSM averages 3.5 out of 5 from 67 ratings, while WPKN averages 5.0 from 6 ratings.
Do Jazz91 KCSM or WPKN have ads?
Both Jazz91 KCSM and WPKN show ads.
Which is updated more often, Jazz91 KCSM or WPKN?
Jazz91 KCSM ships an update every 6 months, and WPKN every 18 months. Most recently, Jazz91 KCSM was updated on November 1, 2026 and WPKN on November 4, 2026.

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