Oolimo Guitar Chords Customer Service
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- Oolimo Guitar Chords App Comments & Reviews (2026)
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Oolimo – The Guitar Chord Bible
Learn, understand and master guitar chords like never before.
Oolimo is the interactive learning and reference app that helps you finally make sense of chord symbols, chord names, and harmonic relationships on the guitar. Created by guitarist and developer Oliver Mochmann, Oolimo unites musical depth with clarity and usability—turning theory into something you can actually see, hear, and understand.
Why Oolimo is different?
The web is full of chord charts and tutorials—but few explain why chords work the way they do.
Oolimo fills this gap with a structured, unified, and accurate approach to chord theory. Think of it as a “foundational work” for guitar harmony—clear like a math framework, but engaging like a creative playground. Whether you’re a beginner or an experienced player, you’ll gain lasting insight instead of fragmented tips.
Main modules:
Chord Finder
Discover chords that really make musical sense. All shapes come from a manually curated database of usable voicings, transposed intelligently by an algorithm that knows real-world theory. Each chord adapts automatically to your selected key. Transfer shapes to the Analyzer with a single tap.
Chord Analyzer
Enter any fingering on the virtual fretboard and get the correct chord name instantly—no “unknown chord” messages. Supports standard and open tunings (chord analyzer only). Includes advanced notation options (slash chords, double accidentals, enharmonics) and shows all notes on the staff.
Chord Progressions
Explore, compare, and learn common and essential progressions with an innovative matrix that visualizes harmonic functions and relationships. Practice them in all keys and contexts.
Theory Lessons
22 interactive lessons including smart visalisations explain intervals, chord construction, voicings, slash chords, diatonic harmony, and every major chord type—from major, minor, and dominant 7 to altered, suspended, add, sixth, and diminished chords.
Quizzes
Test your knowledge and train your ear anywhere. The quizzes cover chord construction, intervals, harmonic context, chord types, voicings, tensions, and more—learning through play.
General features:
Interactive fretboard and chord diagrams with note and interval display
Playback of chords or single notes
Switchable between detailed or compact chord names
Day/night mode and left-handed mode
Languages: German, English, Spanish
Oolimo Guitar Chords App Comments & Reviews
Oolimo Guitar Chords Positive Reviews
The most important tool for a guitarist possibleThis 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..Version: 1.1.60
The tool that teachesLike other reviewers here, I used this online regularly and was thrilled to see it as a stand-alone app. It’s great because you can approach a chord from seeing/hearing inversions on the fly, or from forming your own and having its “tonal makeup” appear as you create it (where is the root, is there a lower 3rd or raised 5 etc) so it teaches you. In that regard you can go deep into the “description” field to really break out what’s happening. To top it off, the UX is one of my favorites, very intuitive and organized for the guitarist. My one gripe is that I could not get the app to show an 7aug or a m9b5? I think that probably falls into enharmonic equivalents, but I wish I could ask the developer what I’m missing?.Version: 1.1.60
Super impressed, excited to learn!(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!!!.Version: 1.1.60
BUY. THIS. APP. NOW.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..Version: 1.1.60
Very good but don’t get rid of your other chord booksThis is a very good application but it does have some shortcomings. Here is one I found. A 7♭5 chord is very common in the Latin stuff I play but don’t try to find it in his application because it’s not there. He calls it a 7#11. Take the key of G as an example. When you go into the chord finder and look for a G7♭5 you will find nothing and when you click in the notes in the chord analyzer that chord name does not come up on the list. It should since this is a common chord name. But my trusty Mel Bay chord book has it. Fix this problem. Players will relate to a flatted 5th way more than a sharped 11th.Version: 1.1.60
Tried them all, this is the bestI’m probably what you’d call an intermediate player, not a flashy soloist or anything. Most guitar apps seem to be for beginners or people who want to be shredders. For everyone who needs a great reference tool, this is the one. This has been everything that I need. Switching from playing e standard to c standard made things challenging to me, but this app has helped more than every single other one I’ve tried..Version: 2.0.1
This app is perfect for songwritersAs a guitar player this is a useful tool for learning. As a songwriter transcribing and trying to do so accurately this is a must have ! I find a lot of chord voicings that fit but I don’t always know the correct name. Having an app that I can put in my fingering and it gives me the chord name and potential other names based on what key you are playing has really helped me when writing the chord charts for new songs out!.Version: 1.2.03
Greatest Delight!I’ve loved this app now for almost 5 years and it never ceases to amaze me, how much it produces for $4.99, or whatever I paid for it. It gives me great joy whenever I may have forgotten that it’s installed on my phone, and what a delight becomes of it after I fire it up and get to work with its range of content. Such an informative and equally inspiring app that I would and will highly recommend to players of all ages and levels!.Version: 1.2.03
Love the app!I’ve been getting back into music and I’m extremely rusty with theory. This app has helped catapult me back into the world of music without needing to read a bunch of literature. However, there is one bug I would like to report. I did use the email address as well to submit a report. Whenever I leave the app and come back, the audio is muted and I have to hard close the app to fix it..Version: 2.0.1
This App is amazing | Oolimo ist megaI found this app while looking for a way to know what chord I actually was playing. I began playing about two years ago, on and off, so really not good. But I love playing and began like composing I guess you could call it. Now by having this app I can actually write down my notes! It helps a lot to understand music. This app has amazing features and I recommend it to anyone who play the guitar!.Version: 1.1.60
Quality app with hint of nostalgiaI’m a relatively new guitar player but long time musician, and this app is great for looking up the chords you happen across when noodling around. It has great functionality for squeezing every bit of music theory out of the neck of the guitar. It also brings me back to the days when apps didn’t have so many bells and whistles and did what you expected them to do. Kudos to the developer for keeping it focused and clean!.Version: 1.1.3
Exceptional app! Best in class!!Long time musician and music theory nerd - like many of you no doubt——-I have tried countless apps like this and it has replaced all my other ones. The Analyzer is maybe my fav tool. I also use the website version in my studio. I would love it to evolve into more of a harmonic/progression/substitution/modulator/builder/recommender (yes, I am asking a lot) for which I would happily pay more..Version: 1.1.70
I like this app a lotThis does amazing stuff such as analyzing chords, teaching chords theory, etc. The only thing that keeps it from being five stars for me is that when I do the tests, it doesn’t grade them. I am hoping to hear from the developer that I am missing something or it’s something that can be fixed. If it is, I will upgrade my review to five stars. Even with that glitch, I highly recommend this. I will be using it for a long time to come.Version: 2.0.1
A Great AppOolimo has helped me sooooo much. As a self taught guitarist and musician this app has been the best for someone like me. I do know chord names and shapes. As a writer I find my own chords that are unidenfiable at times. This app not only shows the chord shape and the sound but also the key, root and notes which has really helped me to identify notes and chord placement. Thank you, thank you for developing the great app!.Version: 1.2.03
Used the website and then instantly went to buy the appI found the website and it was so nice that I instantly went looking for the app. One time payment happily spent! It teaches you how the chords are built and which notes are what part of the chord so it not only helps you name them but helps you learn why it is named what it is. Must have guitar app.Version: 1.1.91
Best Guitar theory app there isI’m so grateful for this app! What a gem. Thank you for creating it! My middle aged brain never learned music when it was young, so none of this comes easy. But this app helps. Only thing that would be better is more interactive games and added content. It feels like it’s not being updated much. Still 5⭐️.Version: 2.0.1
Excellent! Just missing one featureVery useful and intuitive app! I’m not aware of any other like it. It’s great that alternate tunings were added to the chord analyzer feature. It would be REALLY useful if custom tunings were also available on the chord finder page. If this feature is added I’ll change my rating to six stars ;).Version: 1.1.91
Great app born from a great websiteI hardly ever buy apps but sometimes they are so worth the small price to pay. This is one of those apps. I was instantly impressed with the layout and features. This is the product of a passionate person and it shows. So very easy to use and so very helpful just like the site. I can’t wait to see what comes next. Great job!.Version: 1.0.2
Easy, Fast, accurate help!I have been using the PC version for some time and it works great; just found the app and immediately purchased it. Highly recommend! I have been playing guitar for 50 years - in bands, not just at home - and the app will be an awesome help when I’m away from my computer. Even the theory explanations are helpful and succinct!.Version: 1.1.60
InvaluableThis app is so useful and educational. There are other apps like this out there, but none are as good and as intuitive as this one. I am using the online version a lot as a guitar student and it’s great having a mobile app too for when I’m away from the big screen. Thank you for developing this app!.Version: 1.1.91
Will be great for teaching complex fingeringsThis is a very elegantly designed programmed visually, good for incremental chord changes( trills, hammer-ons, pull offs) . I plan on doing screen caps of oddball chords and using that to teach guitarists songs, MUCH easier than wasting rehearsal time. You can create videos, but it’s not as reliably accessible (or as 9x12 visible) as a sheet-of-paper per song in a notebook..Version: 2.0.1
10/10 you need this appIf you’re hesitant on grabbing this app, Just grab it ! I’ve had this for years, and it’s my number 1 guitar app. I can’t express enough how helpful chord finder and analyzer are for practice and developing your theology knowledge, and connecting it to the fret board. They could make this app price, and it’s worth it..Version: 1.2.03
Love this app...Firstly oolima is just the best as far as the chord analysis.I play in FACGAe,DADF#Ae,DADGAD,DAC#F#Ae and several other tunings.I LOOOOVE that you can put custom tunings and save them So that you can then figure out complex chords. I play alternative, math rock and progressive.(Polyphia,Covet,Toe,Dream theater) but i also can play all the classics. I am an experimental guitarist,and having this app gives me everything i need!ONE THING (ADD A CAPO FEATURE AS I TAP ALOT)PLEASEEE.Version: 1.1.60
Everything you need and nothing you don’t.So many of these apps are filled with so much junk. Tabs, social media, gamification, etc. Oolimo is the opposite. It is a Bible of chords and tonal theory that expends all its efforts in giving you every detail of a chord you could ever possibly want. I think it’s brilliant and worth every penny..Version: 1.2.03
Wow!Happened upon the website version and was blown away at how easy it was to use. It suggests every chord it might be when finding random note groupings on the neck which helps me write and suggest chords instead of having slapping obvious music. The chord book is phenomenal too. A price worth the treasure!.Version: 1.1.50
Wonderful appThank you to the developers for all of the tools functionality and depth of this app. This has pretty much everything I could possible want from something like this..Version: 1.1.3
Way to make this app betterI like saving the guitar chords I’m using • but sadly there’s only 9 slots • I would like more • I’m using so many rnd tunings • gonna need more than 9 • would like to have an endless amount of slots instead of having to delete and make room for new slots.Version: 1.2.03
I am arranging my first chord melody!I am a new user of Oolimo. This has been unbelievably helpful in finding chords at the positions of my melody. This app makes it possible for me to build my chord vocabulary as I work. 50 stars!.Version: 1.1.71
Excellent jazz guitar chord resourceI’ve been playing guitar for close to 50 years. One of the frustrating things about other chord sources is they misname the chords (algorithms) or don’t show the most common jazz fingerings. This app gets it right..Version: 1.1.3
Please add ability to save favorite chordsI absolutely love this app but I’d love to be able to save any chord I make in the analyzer as a favorite so I can easily pull it up later..Version: 1.1.91
Still no soundUPDATE: I upgraded my iPhone and the app started to work. An update broke the app and I’m back to no sound. The developer has kept in contact with me trying to resolve the issue and has been just great. It works on my ipad pro perfectly. Still no sound even with update.Version: 1.1.60
Clean interface, no adds, spam or data harvestingClean, guitar nirvana. After 30 seconds I realized the value of what this thing means for guitarists..Version: 1.2.03
Great AppGreat app. Best app for looking up chords and learning new ones. Only recommendation is that more chords are added to the “Chord Finder”. It would also be awesome if a piano version was made!!.Version: 1.1.60
The perfect app for chord buildersCan’t say enough good about this. I tune in straight fourths, and it supports that. I’ve tried lots of chord apps, and love this one. Thanks to the developer(s)!.Version: 1.1.91
Great!!!Fair price, no data collection, mine to keep forever with a single payment… wow I can’t believe it! Did I mention the app is very good too?.Version: 1.1.91
Awesome app for learningI’ve been using the web app, but prefer this use on my phone.Version: 1.2.03
A great resource for chordsThe app is great for many of the simpler and more complex chords used in many types of music. Oliver, thank you for your thoughtful response and the education..Version: 1.1.60
Love this app!Thanks so much for your great work here Oliver! I find the chord analyzer to be super useful. A feature I would love to see in the future is a lead sheet generator with fretboard chord diagrams on it..Version: 1.1.41
Amazing: please add banjoThis app is endlessly useful and extremely well done. One of the most used apps on my phone. Please add 5-string banjo!!!!.Version: 1.2.03
Fixed!It’s working again! Thanks..Version: 1.2.03
Exactly what I was looking for!This app is really well done and does exactly what I was looking for. Thanks for making this!.Version: 1.1.3
Very GoodThis app looks great and is very informative. It is extremely useful, highly recommend it..Version: 1.1.60
AmazingI can’t put into words how great this is. Very well made and very helpful.Version: 1.1.60
No SoundAgree with other reviews, play button doesn’t work on iPhone. If there is an update with fixed sound I’d say 5 stars..Version: 1.1.3
Buy this app now!This may be the best $2.99 I have ever spent! Fantastic..Version: 1.1.60
Great appI use it all the time. It rules 😎.Version: 1.2.03
Cool but no soundPlay button doesn’t work.Version: 1.1.2
FantasticGreat teaching tool, reasonably priced!.Version: 1.1.91
Child finder doesn’t workI just get a green square. And nothing else. How can I fix this?.Version: 1.1.41
First impressions very goodMaybe consider adding a “relative to capo” section? App seems to work smooth and is very detailed. Just a first impression but so far I’m impressed. Thank you..Version: 1.1.91
Feel like a ripoff, but no, just technology.Worked great on an old iPad, updated and no longer worked in app. Talked with designer, just outdated by the advanced app, works still in browser so I’m good with that, changing my review. Designer got back to me again, updated the app to work on older devices, very happy with the result, really great service from this app..Version: 1.1.91
Open tunings?Trying to decipher my open tunings & what chords im playing with them - hoping oolimo would help but it doesn't cover these tunings! Otherwise great app - if i had one gripe or letdown it would be there are no options to explore open tunings!!! Please work on including these!!!.Version: 1.2.03
One of the best guitar app there is!I use it often, for learning, composing and saving time. It is a must have..Version: 1.1.70
This new version adds support for left-handed guitaristsOpening the app, just select “Left” and you get the Oolimo guitar app offering you the world of left-handed guitar playing! What a step forward. A must for all of us....Version: 1.1.60
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