Oolimo – The Guitar Chord Bible
…with the leading Chord Analyzer
Oolimo is the interactive foundational reference for guitar chords – a learning and lookup app that explains chords clearly, supports songwriting, and inspires fresh sounds on the guitar.
– No subscription! Pay once – use it forever and receive updates.
– Current languages (included in every app): English, German, Spanish, French, Italian, Dutch, Danish, Norwegian, Swedish, Portuguese (Brazil), Portuguese (Portugal), Chinese (Simplified), Indonesian, Japanese.
Learn guitar chords and chord symbols as used by professional guitarists in modern pop, rock and jazz – including complex jazz chords.
Let the Chord Analyzer name chords you've discovered on the guitar and show you how they are built.
– Chord Finder, Chord Analyzer and music theory in one app.
– Learn and understand chords
– Read chord symbols confidently (including complex jazz chords)
– Analyze chords instead of guessing
– Apply music theory directly on the fretboard
Oolimo clears up nonsense chords and incorrectly or confusingly written chord symbols, and explains with clear logic how chord symbols (chord names) are written unambiguously and how to correctly interpret different notations. When musicians from all over the world play together, it's important that everyone speaks and understands the same language – and that the language is easy and clearly understandable.
— The Modules —
Chord Finder
Find musically meaningful chords instead of random guitar shapes. All fingerings come from a hand-curated database of playable voicings and are intelligently transposed by an algorithm. Every chord adapts automatically to the selected key. With a single tap you can send shapes directly to the Analyzer and explore inversions and different interpretations of the chord.
Chord Analyzer
Enter any guitar chord into the virtual fretboard and instantly get the correct chord name, including inversions. No "unknown chord" messages thanks to the intelligent recognition algorithm – even for complex chords, slash chords and inversions. The Chord Analyzer also supports alternative tunings (open tunings).
Chord Progressions
Explore and compare the most important chord progressions with an innovative matrix that visualizes harmonic functions and relationships.
Practice the most important progressions systematically in different keys and variations – and master them so well that you can rattle them off in rehearsal to the amazement of your bandmates.
Theory Lessons
22 interactive lessons with smart visualizations explain intervals, chord construction, voicings, slash chords, diatonic harmony and all major chord types – from first explorations on the fretboard, through major, minor and dominant 7th to altered, sus, add, 6th and diminished chords.
Quizzes
Use the quizzes to test and internalize your knowledge through play. The quiz tasks cover many topics: chord construction, intervals, harmonic context, chord types, voicings, tensions and much more.
This is the smartest tool I’ve ever seen not just in apps, but all across the internet, books, everything. The chord analyzer and chord finder sections compliment and work together fluidly and perfectly. The fact that you can click on strings and build chords that you may have played on the guitar and don’t know what they may be, or why they sound good to you, is a feature that even allows you to understand your own playing, and no tool or website can rival that. In addition, when looking up any chord in the list of chords, you can see it intelligently in every inversion, and you can also turn on arpeggio, and it’ll show the arpeggios relative to the chords your playing, and they are displayed slightly less prominently to the chord. That’s brilliant. It has saved me hundreds of hours of web searching and googling to answer simple questions. The visual design of this app is so simple, streamlined and genius, I don’t think anything rivals it. There’s also a button to sound any chord you create by selecting notes on the fretboard, and this app has even become something I can use to study music when I don’t have a guitar, like on an airplane. This app is so perfect, I honestly hope it never changes and is available for all foreseeable future. I’m blown away. I personally would count it as the best guitar app created to date, and possibly one of the greatest apps created of all time next to Shazam and Juxtaposer. It’s completely in a class of its own, there’s nothing to compare it to. If I had to, I would buy it 100x over. If you’re a guitarist you should have this immediately and it should be where mine is, on my first page of apps on my phone. To the designers and developers, a standing ovation. When I have new students, the first thing I do is make them buy this app, sometimes even before buying a guitar. This little app was birthed from pure brilliance.
Developer Response
Wow, I‘m speechless :-) Thanks for taking the time to write down all of this! This is super motivating. I will not rest on these laurels and carry on improving app and website (currently working on a bigger update of the latter). Kindest regards from Vienna, Oliver
Super impressed, excited to learn!
Justin Charles White
(Edited below)Extremely informative, great ui, and makes theory kinda fun! I’m always creating chords and wondering what they are and how they relate to each other, and this app helps me understand. My only request is for features of chord progressions to be added, as the web version already has. Other than that, amazing work!Edit: PLEASE add a chord library/option to save progressions to the app! Only 9 slots to save chords are available, but if we were able to save different progressions into folders to access later and/or save specific fingerings for chords we like, it would take this app to the next level!!!
The best of the bunch
SCRAP KING
I’ve been a bit of a collector of Mel Bay books, Micky Baker, Johnny Rector… and there’s a lot to learn in those methods. But once I launched Oolimo, I found the best tool yet. You can discover from any direction - punch in chords you’ve “discovered” note by note and learn what it is composed of and the voicing it represents. You can study progressions with optional voicings, take quizzes and “hear” and chord you come across by letting the app play it. Did I mention it does open tunings? Hands down the best developed app to date, and worth every penny. Just get it, you’ll thank me!
BUY. THIS. APP. NOW.
Rokadome
I have been using the webpage Oolimo for years and have been waiting on the app for just as long. As a songwriter, it has helped me identify chords I “made up” or find chords I’ve been looking for. It is hands down the best application for guitar chords, bar none. There is so much I love about Oolimo that I can’t list it all here. The price for this app is an absolute steal and I would gladly pay 50 times the price for what this app can do. No question.If you play guitar, you NEED this app.
New languages: Indonesian and Japanese (in addition to English, German, Spanish, French, Italian, Dutch, Danish, Norwegian, Swedish, Portuguese (Brazil), Portuguese (Portugal) and Chinese (Simplified))
Version 2.2.3
The developer, Oliver Mochmann, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Oliver Mochmann
Size
15.6 MB
Category
Education
Compatibility
Requires iOS 16 or later.
iPhone Requires iOS 16 or later.
iPad Requires iPadOS 16 or later.
iPod touch Requires iOS 16 or later.
Mac Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
