Comparison

Sonofield Ear Trainer vs Open Studio Jazz

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

Head to head
About

Sonofield Ear Trainer

This app helps musicians develop their ear by focusing on the feeling of individual notes within a key, rather than traditional interval training. It uses sustained drones and offers various modes like identifying scale degrees, melodies, and singing exercises. The app adapts to your skill level with an intuitive interface and progression path.

Highlights
  • Feeling-based note recognition
  • Scale degree identification
  • Melody recognition training
  • Singing exercises
  • Hands-free training mode
  • Interactive exploration instrument
Features
Read full description

Sonofield Ear Trainer (SET) is a revolutionary ear training app designed to help you intuitively play the melodies you hear and imagine. Instead of relying on traditional old methods like intervals, SET focuses on helping you feel the unique character of each note within a key. By using sustained drones to create a tonal foundation, you’ll learn to recognize scale degrees based on their *feeling*, not just how they sound. The app offers a variety of ways to train: * Degrees Mode - Identify individual notes against the drone by feeling. The heart of SET. * Melody Mode - Identify short melodic phrases, preparing you for real music. * Voice Mode - Sing the requested scale degree into your microphone. * Pocket Mode - Hands-free training for when you're on the go. * Free Play - An interactive instrument for exploration. With its intuitive, color-coded interface, thoughtfully designed progression path, and multiple difficulty levels, SET adapts to your skill level while keeping practice engaging. Whether you're a beginner or an experienced musician, SET is your guide to unlocking true musical fluency through intuitive, feeling-based ear training. No ads or forced payments. The free version contains full foundations for feeling-based ear training. Download the ear training app now!

About

Open Studio Jazz

This platform offers guided jazz education for all skill levels, featuring weekly lessons on real jazz standards and pathways for practice. Learn from renowned jazz musicians and track your progress across devices.

Highlights
  • Weekly new jazz standard lessons
  • Guided practice pathways
  • Courses by legendary jazz musicians
  • Progress tracking across devices
  • Beginner to advanced levels
  • Full library of technique, theory, and improvisation courses
Read full description

Living a musical life is not a finish line, it is something you build into your days. Open Studio is the jazz education platform for players who want to play better and enjoy the process, wherever they are: beginner, intermediate, or advanced, on any instrument. A clear home for wherever you are in your playing Open Studio gives beginner, intermediate, and advanced players their own dedicated learning dashboard. Instead of guessing where to start or what comes next, you open the app and see your path laid out in front of you. New piano lessons every week, built around real jazz standards - Our instructors add new lessons every week, built around the songs jazz musicians actually play. You are learning through real repertoire from day one, not abstract exercises disconnected from the music you love. Guided practice, without the overwhelm - Jazz has a lot to learn: theory, technique, repertoire, improvisation. Open Studio's guided pathways solve the question every player asks: "What should I practice next?" Each lesson connects to the next, so your practice time has direction instead of guesswork. Learn from real jazz musicians - Our courses are taught by professional jazz musicians and educators, covering everything from foundational technique to advanced improvisation, including Ron Carter (bass), Emmet Cohen (piano), Peter Martin (piano), Adam Maness (piano), Aaron Parks (piano), Larry Goldings (piano), Fred Hersch (piano), Sean Jones (trumpet), Dianne Reeves (vocals) and more. Practice on your schedule, wherever you are - The Open Studio app puts your lessons, courses, and practice pathways in your pocket. Pick up a session on the train, before a gig, or during a quiet ten minutes at home. Your progress travels with you. Built for the long term - We do not believe in shortcuts or overnight mastery. Jazz is a lifelong pursuit, and Open Studio is built to support you at every stage of it, from your first chord voicings to your first solo you are proud of. Open Studio membership includes: - Weekly new lessons built around real jazz standards - Guided Practice Sessions and Skill Pathways for beginner, intermediate, and advanced players - A full library of courses across technique, theory, and improvisation - Specialized courses taught by legendary jazz musicians - Progress that stays with you across devices Whether you are picking up an instrument for the first time or you have been playing for decades, Open Studio is here to help you live a musical life, one practice session at a time. START YOUR FREE TRIAL Start your 14-day free trial today and get full access to piano, bass, guitar, drums and more. Try it risk free. If Open Studio isn't right for you, you're covered by our 90-day satisfaction guarantee. Download the app and start today. Terms of Use: https://www.openstudiojazz.com/terms-of-service/ Privacy Policy: https://www.openstudiojazz.com/privacy-policy/

Screenshots

Sonofield Ear Trainer4 screens
Open Studio Jazz4 screens

Verdict

The call

The clearest difference is ratings volume: Sonofield Ear Trainer at 376 against Open Studio Jazz's 5. Sonofield Ear Trainer also leads on iOS requirement (13.0 vs 15.1). Open Studio Jazz's advantage is review sentiment (100% vs 89%). On price, rating, update cadence and ads 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. Sonofield Ear Trainer sells 4 one-off in-app purchases and Open Studio Jazz sells 4 in-app purchases, starting at $39.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Sonofield Ear Trainer against 5.0 for Open Studio Jazz. That said, the two scores are not equally well evidenced: Sonofield Ear Trainer has 376 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 89% of Sonofield Ear Trainer's written reviews are positive against 100% of Open Studio Jazz's.

UpkeepUpdate frequency

Sonofield Ear Trainer ships an update every 9 days, Open Studio Jazz every 5 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
Sonofield Ear Trainer versus Open Studio Jazz: the parameters behind the verdict, then further details
ParameterSonofield Ear TrainerOpen Studio Jazz
PriceFreeFree
Rating4.9 (376 ratings)5.0 (5 ratings) — better
Positive reviews88.7% of reviews100.0% of reviews — better
Number of ratings376 — better5
Update frequencyEvery 9 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size105 MB51 MB
Age rating4+4+
DeveloperSonofield Ear Trainer Education Ltd.Open Studio Network LLC

Customer experience

Sonofield Ear Trainer

All ratings376 ratings
Positive97.3%
Neutral1.6%
Negative1.1%
Written reviews151 reviews
Positive88.7%
Neutral6.6%
Negative4.6%

Open Studio Jazz

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Sonofield Ear Trainer

Reported bugs

1 issue
  • None reported

Requested features

5 requests
  • Option to switch between 12TET and just intonation
  • Ability to reduce octave range
  • Incorporate more timbre options for drone and notes
  • Tracking and visualization of progress and learned skills
  • Add interactive tutorial for level 1

Open Studio Jazz

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Sonofield Ear Trainer

One-time4
  • Lifetime Pro$14.99
  • Lifetime Pro$17.99
  • Lifetime Pro2 variants$19.99
Show 1 more
  • Lifetime Pro$24.99
4 purchases

Open Studio Jazz

Subscriptions4
  • Open Studio (Monthly)14 Days trial$39.001 Month
  • Open Studio Pro (Monthly)$97.001 Month
  • Open Studio (Annual)14 Days trial$390.001 Year
Show 1 more
  • Open Studio Pro (Annual)$559.991 Year

Questions

Is Sonofield Ear Trainer free?
Sonofield Ear Trainer is free to download, with in-app purchases available.
Is Open Studio Jazz free?
Open Studio Jazz is free to download, with in-app purchases available.
Which has better reviews, Sonofield Ear Trainer or Open Studio Jazz?
Open Studio Jazz is rated higher. Sonofield Ear Trainer averages 4.9 out of 5 from 376 ratings, while Open Studio Jazz averages 5.0 from 5 ratings.
Do Sonofield Ear Trainer or Open Studio Jazz have ads?
Neither Sonofield Ear Trainer nor Open Studio Jazz shows ads.
Which is updated more often, Sonofield Ear Trainer or Open Studio Jazz?
Sonofield Ear Trainer ships an update every 9 days, and Open Studio Jazz every 5 days. Most recently, Sonofield Ear Trainer was updated on October 14, 2026 and Open Studio Jazz on October 13, 2026.

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