Comparison

FretShed vs Jazz Improviser

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

Head to head
About

FretShed

Features
Read full description

A solo when you need one. A better player after. Pick the genre, the key and the tempo. FretShed generates a fresh solo over a backing track. You work it out by ear and make it yours. No tabs. No notation. If you can see it, you're reading it, not hearing it. Work it out by ear and it stays in your hands. THE GIG IS FRIDAY The song needs a solo. You don't have one yet. Set the key and tempo, generate a solo and use it as your starting point. Learn it, change the feel, extend the ending. Make it fit. STUCK ON THE SAME LICKS Your ear needs unfamiliar material to grow. Every solo is generated fresh. Every one you work out adds to your vocabulary. BUILT FOR THE SHED - Rock, blues, jazz, metal and funk - Loop any phrase and sit with it until your ear locks in - Slow it down to 50% without changing the pitch - Recorder, metronome and ear tuner, free - Your solos and recordings on iPhone, iPad and Mac WHERE THE SOLOS COME FROM FretShed uses AI to generate solos. That is where its job ends. Working it out, getting it under your fingers and making it fit your playing is on you. NOT FOR BEGINNERS There are no lessons, no gamification, no badges. If you know what shedding means, you already know what this app is about. The shed is always open. SUBSCRIPTION The recorder, metronome and ear tuner are free. A monthly or yearly subscription unlocks solo generation, up to 80 solos in any 30 days, and keeps your solos and recordings on all your devices. One subscription covers iPhone, iPad and Mac. The price and billing period are shown before you confirm. Payment is charged to your Apple Account. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Cancelling takes effect at the end of the period you have paid for. Terms of Use: https://fretshed.dcbl.app/terms.html Privacy Policy: https://fretshed.dcbl.app/privacy.html

About

Jazz Improviser

Features
Read full description

Create new melodies based on your chosen chord progressions and edit the results in the piano roll. Use the rhythm and melodic contour curves to shape the structure, movement, and variation of your phrases. Features: • Well-known jazz and blues chord progressions • Automatically generated melodies • Control over rhythm and melodic movement • Editable piano roll • Support for different numbers of measures and tempos • Random seeds for creating new variations • Instant playback of melody and harmony

Screenshots

FretShed4 screens
Jazz Improviser4 screens

Verdict

The call

The clearest difference is in-app purchases: Jazz Improviser at none against FretShed's 2. Jazz Improviser also leads on iOS requirement (15.0 vs 26.1). FretShed's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. FretShed sells 2 in-app purchases, starting at $14.99 per month. Jazz Improviser asks for nothing beyond the download.

UpkeepUpdate frequency

FretShed ships an update every 10 days, Jazz Improviser every 3 weeks. Both last shipped on October 28, 2026.

Scorecard3 real differences Ā· 3 level
FretShed versus Jazz Improviser: the parameters behind the verdict, then further details
ParameterFretShedJazz Improviser
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS26.115.0 — better
Further details — not scored
Size55 MB64 MB
Age rating4+4+
DeveloperDecibel Technologies LimitedAtte Tenkanen

In-app purchases

2 purchases

FretShed

Subscriptions2
  • Monthly$14.991 Month
  • Yearly$149.991 Year
None

Jazz Improviser

No in-app purchases

Questions

Is FretShed free?
FretShed is free to download, with in-app purchases available.
Is Jazz Improviser free?
Jazz Improviser is free to download, with no in-app purchases.
Do FretShed or Jazz Improviser have ads?
Neither FretShed nor Jazz Improviser shows ads.
Which is updated more often, FretShed or Jazz Improviser?
FretShed ships an update every 10 days, and Jazz Improviser every 3 weeks. Most recently, FretShed was updated on October 28, 2026 and Jazz Improviser on October 28, 2026.

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