# Jamn Multi-tool: — Visualize music theory > Interactive music theory reference tool for visualizing chords, scales, and key relationships. (iPhone/iPad app by MiQ Limited.) - Source: https://appshunter.io/ios/app/jamn-multi-tool/id530470606 (this page in markdown: same URL + `.md`) - Developer: [MiQ Limited](https://appshunter.io/developer/530470929) - Category: Music, Education - Price: $0.99 with in-app purchases - Rating: 3.40/5 from 34 App Store ratings · 181 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 88 MB - Languages: American English, Arabic, Catalan, Czech, Danish, Dutch, Filipino, Finnish, French (France), German (Germany) and 22 more - Released: 2012-10-01 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/jamn-multi-tool/id530470606/reviews.md ## What is Jamn Multi? Hi my name is Johnny Quattro, I'm the inventor of the Jamn Multi-tool and the music wheel you see inside. The app changed my life. It made my guitar playing reach a whole new level. I hope it does that for you too. Check it out and message me on Facebook if you need any help using it. Thanks! The app has NO in-app purchases everything feature is available. Who is this app for? It's a must have interactive reference tool for musicians with basic music theory knowledge. The app is the perfect companion to visualize a song’s hidden structure and chord progressions. The Jamn wheel that confers the app its uniqueness, reveals the relationships between keys, chords and scales for guitar (electronic guitar and acoustic guitar), bass, ukulele and piano. Re-discover the circle of fifths with Jamn multi-tool. This multi-award winning app is perfect if you want to: •Find chords that belong together to help write better songs •Explore different scales and keys •Get deeper into music theory •Personalize existing songs by adding more chords •Jam solo or with a band FEATURES • Guitar (electric guitar and acoustic guitar), bass, ukulele, and piano chords • Revolutionary patented Jamn Wheel • In-key chords and scales for every key plus audio • Massive chords library • Virtual chords of major and minor key • Free updates • Built-in tuner for guitar, bass, ukelele • PROScales menu: Classic (Natural, Harmonic, Melodic), Rock (Pentatonic), Blues (6,7,8 note) Jazz (Dominant, Bebop), Exotics (Spanish, Japanese, Chinese) Jamn Multitool is perfect if you are a: •Casual music player •Music lover •Musician •Artist •Guitarist •Bassist •Pianist •Ukelele player •Music band "It’s a pocket-sized visual, textual, and audio music reference that stands to revolutionize guitar teaching." Carolyn Heneghan, SoundCtrl “Whether you're learning to play the guitar, or writing your own songs, Jamn looks like an essential download. It uses a wheel-based user interface to show the relationships between keys, chords and scales....” Stuart Dredge, The Guardian BLOGGERS: “What Jamn is, is a fantastic way to trigger the creative part of your brain. I know a lot of songwriters who could find uses for an app like this, just so they’re able to get their creative juices flowing.” Nathan Snelgrove, Appstorm “This app is totally worth it.” J Hamilton, SonicBoomBap MUSICIANS: “If you wanna play any key, expand your knowledge of chords and scales and everything, you should definitely check out Jamn app.” Mishka, internationally-known reggae artist “I love the way it puts theory in your pocket” Luke Elsley, Guitarist, Benjalu “It’s so intuitive.” Nick Saxon, National Geo Reporter and Guitarist Jamn Multi-tool, the best circle of fifths CONTACT: marketing@miqlimited.com getjamn.com youtube.com/getjamn twitter.com/getjamn ## Key features - Visualize song structure and chord progressions - Jamn Wheel for key, chord, and scale relationships - Chords and scales for guitar, bass, ukulele, piano - Massive chords library - In-key chords and scales with audio - Built-in tuner ## Pricing and in-app purchases Base price: $0.99. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pro-Scales Starter Pack | $1.99 | one-time | | Ukulele Fretboard | $1.99 | one-time | | Universal Tuner | $0.99 | one-time | | eHands plus | $1.99 | one-time | | Piano | $1.99 | one-time | | Bass Guitar Fretboard | $1.99 | one-time | ## What do users think of Jamn Multi? Overall sentiment: neutral **Pros** - 🚀 Useful app - 👍 Great resource - 👍 Helpful for learning music theory - 👍 Intuitive interface - 👍 Visually appealing - 👍 Comprehensive music reference **Cons** - 🐛 Crashes frequently - 🐛 Tuner feature not working - 🔒 Paywall for core features - 🔒 Ads for paid users - 🔒 Removal of previously purchased features **Commonly reported bugs** - Incorrect chord sounds (e.g. E major playing E minor) - Unresponsive interface, menu buttons not working - Crashes on iPad and older iOS devices - Inability to restore previously purchased features **Most requested features** - Add support for minor keys and scales - Extend fretboard display to 12th fret - Implement landscape mode - Add recording and saving functionality - Integrate MIDI support ## Recent user reviews (10 of 181) All indexed reviews: https://appshunter.io/ios/app/jamn-multi-tool/id530470606/reviews.md ### 5/5 — Still very useful app! *2025-04-01* Been using this app for years. I know I should be learning all my keys but it’s helps! ### 5/5 — Great! *2023-09-02* This is a great resource! ### 1/5 — Worthless *2022-11-07* A waste of money. And no refund. Outdated and still selling. ### 5/5 — my favorite music theory app *2022-07-31* I hope that the developer will keep it updated because I love this app! ### 3/5 — Why no more updates *2022-06-27* Why. I updates for the latest iOS, and no functioning of jPlayer. ### 5/5 — Jamn daily *2020-06-09* Hopefully the jamn daily apps were available to all country i’ve downloaded it for how manys years then now is not available already😌 ### 3/5 — Good interface but chords missing *2019-07-03, version 3.2.8* I’ve just looked at a 6 years old review about some basic chords missing like Dm, same I noticed, and I am sorry to see that there is still no improvement that level. ### 1/5 — Lots of bugs *2019-01-06, version 3.2.7* The app doesn’t even open correctly on ipad 9.7 2017 ### 1/5 — App stopped working on ipad *2018-11-23, version 3.2.3* Doesn’t work any more can’t start application on my iPad ### 5/5 — JustMe *2018-11-17* This is not only an awesome app, you need this app if you want to learn music beyond the basics. There is something about music theory that is very mysterious to most of us, And this app will show you how to cut through some of the guessing While you’re still training your ears to hear of the different tones. ## Frequently asked questions about Jamn Multi ### What does the Jamn Multi-tool app do? The Jamn Multi-tool is an interactive reference app designed to help musicians visualize music theory. It reveals the relationships between keys, chords, and scales for instruments like guitar, bass, ukulele, and piano, aiding in songwriting and understanding song structure. ### What are the key features of Jamn Multi-tool? Key features include the revolutionary Jamn Wheel for visualizing musical relationships, a massive chords library, in-key chords and scales with audio playback, a built-in tuner for guitar, bass, and ukulele, and various scale options like Pentatonic and Blues. ### Is Jamn Multi-tool free to use? Yes, the app is free to use. The description explicitly states that there are no in-app purchases and all features are available to the user without additional cost. ### What instruments is Jamn Multi-tool compatible with? The app provides chord and scale information for guitar (both electric and acoustic), bass, ukulele, and piano. It also includes a built-in tuner for guitar, bass, and ukulele. ### Who would benefit from using Jamn Multi-tool? This app is ideal for musicians with basic music theory knowledge, including casual players, music lovers, artists, and instrumentalists like guitarists, bassists, pianists, and ukulele players. It's also useful for bands and songwriters looking to explore musical ideas. ## Version history (last 5 releases) ### 3.2.8 — 2019-01-24 Updated iOS12 SDK Supported new devices screen sizes Fixed a crash when using tuner ### 3.2.7 — 2018-12-01 Updated iOS12 SDK Supported new devices screen sizes Fixed a crash when using tuner ### 3.2.3 — 2016-12-16 -Bug fix ### 3.2.2 — 2016-12-12 -Technical updates ### 3.2.1 — 2016-04-14 This version is: -Totally free, no in-app purchases anymore -Bug free ## Apps similar to Jamn Multi | App | Rating | Price | Category | | --- | --- | --- | --- | | [ChordWeaver](https://appshunter.io/ios/app/chordweaver/id881635910) | 5.0 (5) | $9.99 | Music | | [ChordMaps2](https://appshunter.io/ios/app/chordmaps2/id1098330720) | 4.2 (25) | $9.99 | Music | | [Fortamento](https://appshunter.io/ios/app/fortamento/id1237303202) | 4.8 (109) | $4.99 | Music | | [S-Modular](https://appshunter.io/ios/app/s-modular/id1291071549) | 2.8 (10) | $2.99 | Music | | [SessionBand Country 1](https://appshunter.io/ios/app/sessionband-country-1/id896176065) | 3.6 (41) | $3.99 | Music | | [NLogSynth PRO](https://appshunter.io/ios/app/nlogsynth-pro/id393879841) | 4.6 (32) | $8.99 | Music | ## Related topics [miq limited](https://appshunter.io/ios/topics/miq-limited) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*