FretShed vs JamEngine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FretShed
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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
JamEngine
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JamEngine is a real-time music generation app that puts a full backing band in your pocket. Choose from 15 musical styles, pick your key and tempo, and JamEngine instantly creates authentic, genre-appropriate arrangements, complete with MIDI drums, bass, guitar, piano, brass, and woodwind instruments. Whether you're a guitarist looking for a rhythm section to practice over, a songwriter sketching out chord progressions, a jazz player working on improvisation, or a producer hunting for inspiration, JamEngine gives you a responsive, endlessly variable musical companion. 15 STYLES TO CHOOSE FROM Rock · Hard Rock · Classic Rock · Metal · Pop · Ballad · Blues · Slow Blues · Jazz Swing · Jazz Ballad · Funk · Bossa Nova · Reggae · Country · Lo-fi Each style comes with genre-authentic drum patterns, bass lines, guitar voicings, keyboard parts, and horn arrangements. 12 INSTRUMENTS Build your arrangement from a roster of 12 instruments, each with realistic General MIDI sounds: • Drums · Bass · Electric Guitar · Acoustic Guitar • Piano · Organ · Strings • Trumpet · Trombone · Alto Sax · Tenor Sax · Clarinet Mix and match any combination. Each instrument has independent volume, mute, solo, pan, density and 11 variation levels to control the complexity and character of its part. SMART CHORD PROGRESSIONS Build chord progressions using the grid editor or the interactive Circle of Fifths, a visual tool that highlights diatonic chords in your selected key, so you can see at a glance which chords belong together. Start from scratch, or load one of the built-in templates: I-IV-V, I-V-vi-IV, ii-V-I, 12-Bar Blues, Jazz Turnaround, and more. Choose from 18 chord types including major, minor, seventh, diminished, augmented, sus, and extended chords. FLEXIBLE TIME & KEY Play in any of 7 time signatures, 2/4, 3/4, 4/4, 5/4, 6/8, 7/8, and 12/8, with BPM from 40 to 300. Tap tempo to match a song. Select any of the 12 keys in major or minor. Change key mid-session and your chord progression transposes automatically to preserve harmonic relationships. VARIATION RANDOMIZER Enable the variation randomizer and JamEngine will shuffle instrument variations at musically appropriate boundaries, every 4 or 8 bars, keeping your practice sessions fresh and unpredictable without you lifting a finger. EXPORT YOUR SESSIONS Capture your jam as a WAV, M4A, or multitrack MIDI file. Use export to bring your arrangements into your DAW for further production. SONGBOOK Save your favorite sessions, style, key, tempo, chord progression, and instrument setup to your personal Songbook. Load them instantly to pick up where you left off. CUSTOM SOUNDFONTS Import your own SF2 SoundFont files to customize the sound of every instrument. FREE TO START, PRO TO UNLOCK EVERYTHING JamEngine is free with 4 styles (Rock, Metal, Jazz Swing, Lo-fi), 3 song saves, and all playback features. Upgrade to JamEngine Pro for a one-time purchase to unlock all 15 styles, unlimited song saves, and full export capabilities.
Screenshots
Verdict
The clearest difference is update cadence: JamEngine at every 5 days against FretShed's monthly. JamEngine also leads on iOS requirement (18.6 vs 26.1). On price, ads, in-app purchases and device support 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
Both are free to download. FretShed sells 2 in-app purchases, starting at $14.99 per month and JamEngine sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
FretShed ships an update monthly, JamEngine every 5 days. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.
| Parameter | FretShed | JamEngine |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 26.1 | 18.6 — better |
| Further details — not scored | ||
| Size | 52 MB | 149 MB |
| Age rating | 4+ | 4+ |
| Developer | Decibel Technologies Limited | Orcun Keskin |
In-app purchases
FretShed
- Monthly$14.991 Month
- Yearly$149.991 Year
JamEngine
- JamEngine Pro$8.99









