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.
I’ve been using the web based version for a while as I learn the guitar, and for reference. This app makes that functionality available on the phone in a very elegant little app. It doesn’t overburden you with options or a clunky interface like some other apps, but puts what you need right in front of you. I will be using this all the time, both when practicing and when I want to test my knowledge away from the guitar. Easy five stars!
Great app stopped working
trevarden
This app is excellent in its effectiveness and approach, BUT it has stopped opening on my iPhone 7 Plus running iOS 15.8.2 . I wonder if the developer will work on another update? …The developer has responded quickly and pleased that the brilliant app works perfectly now on my device. Thank you!
Developer Response
Sorry for the inconvenience and thanks for your patience! Update 1.2.03 seems to have solved the issues and obviously the Oolimo app opens on all devices again. Testet on a physical iOS 15.x device this time before launch and only got positive confirmations so far. Kind regards, Oliver
Great app
Robbo 99!
Every guitar player needs this for reference and education. Reached out to Oliver to add open tuning change to chord finder as well as analyser ( I can’t find it, maybe I’m missing something), great app nonetheless.
Great but not perfect - yet
Mkpete
Like Robbo 99, it would be good to have other tunings available on Chordfinder.I also used to have another great app, which has been discontinued which covered other instruments such as Ukulele and Mandolin. Add these and Cigar Box Guitar and it would be perfect.
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 based, for example, 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
Provider
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.
