Oolimo Guitar Chords vs Omedetou
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oolimo Guitar Chords
This app provides an interactive way to learn, understand, and master guitar chords. It offers a structured approach to chord theory, helping users visualize and hear harmonic relationships. Features include a chord finder, analyzer, progression explorer, interactive lessons, and quizzes.
- Interactive chord finder and analyzer
- Chord progression visualization
- 22 interactive theory lessons
- Chord construction and ear training quizzes
- Interactive fretboard and diagrams
- Chord playback and note display
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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.
Omedetou
This comprehensive Japanese language course offers a structured learning path from basic kana to advanced N1 material. It includes interactive lessons, vocabulary flashcards, grammar explanations, and graded tests, all accessible offline. Progress is stored locally with optional iCloud sync for seamless device transfer.
- Guided lesson path
- Kana and Kanji learning
- 50+ grammar chapters
- Spaced-repetition flashcards
- Offline audio study
- Integrated dictionary
- Graded reading practice
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Omedetou is a complete Japanese course that lives on your phone. Start at the very beginning — the hiragana and katakana charts, one sound at a time, with audio and pronunciation notes for every character. Then work upward through more than fifty grammar chapters, from your first sentence to N1 (master level) material, each with worked examples, vocabulary and practice questions. CLASSROOM The Classroom walks you through the whole course as one linear path with no subscription required. Each class teaches a chapter a single idea at a time: a grammar points explained, worked examples, a short quiz to make sure it stuck, then the chapter's vocabulary and kanji as flashcards — and finally the test. Finish a chapter and the next one is waiting. Every learner can walk the path from あ to N1. WHAT'S INSIDE • Attend Class — a guided lesson path through the entire course: teaching, examples, quizzes, flashcards, tests • Kana from zero — 28 lessons across hiragana and katakana, with readings, audio and example words • Fifty-plus grammar chapters — N5 through N1, plus counters, dates, keigo and everyday slang • Graded tests — sit them on a schedule, get a report card and a running GPA • Flashcards — vocabulary and kanji, scheduled by a spaced-repetition system that shows you a card just before you'd forget it • Audio study — hands-free vocabulary and sentence practice that keeps playing with the screen off, over headphones or your car stereo • A real dictionary — thousands of entries, searchable in English or Japanese, with conjugation tables and audio • 1,100+ kanji — readings, meanings and example words • Reading passages — graded comprehension practice with full furigana • Particles, cheat sheets and conjugation drills • Custom lessons — build your own sets from anything in the app BUILT FOR READING JAPANESE Furigana sits above every kanji, and one slider controls how large Japanese text appears throughout the app — so readings stay legible whatever your eyesight. Anything can be read aloud, and you can search the dictionary by speaking instead of typing. YOUR PROGRESS, YOUR DEVICE Everything you do is stored on your iPhone. There are no accounts, no sign-up, no advertising, no analytics and no third-party trackers. Turn on iCloud sync and your progress follows you to another device through your own private iCloud — which nobody else can read. You can export a backup at any time. The app works completely offline. It never needs a connection to teach you anything. A home screen widget shows a word from your studies and rotates it through the day. There are also a few things hidden in the app for the curious. Dictionary and kanji data come from the JMdict/EDICT and KANJIDIC projects, © the Electronic Dictionary Research and Development Group, used under CC BY-SA 4.0. Terms and Conditions https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Omedetou at Free against Oolimo Guitar Chords's $5.99. Omedetou also leads on update cadence (every 5 days vs every 6 weeks). Oolimo Guitar Chords's advantage is in-app purchases (none vs 3) and ratings volume (106 vs 4). On rating, ads, device support and iOS requirement 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
Omedetou is free to download; Oolimo Guitar Chords costs $5.99 up front. Omedetou sells 3 in-app purchases, starting at $5.99 per month. Oolimo Guitar Chords asks for nothing beyond the download.
Omedetou holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Oolimo Guitar Chords has 106 ratings behind it against 4, so its average is the more settled of the two.
Oolimo Guitar Chords ships an update every 6 weeks, Omedetou every 5 days. Both last shipped on October 29, 2026.
| Parameter | Oolimo Guitar Chords | Omedetou |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.8 (106 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 91.6% of reviews | — |
| Number of ratings | 106 — better | 4 |
| Update frequency | Every 6 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Best chart rank | #92 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 16 | 16.0 |
| Further details — not scored | ||
| Size | 15 MB | 47 MB |
| Age rating | 9+ | 4+ |
| Developer | Oliver Mochmann | MATTHEW PETER DEVOTI |
Customer experience
Oolimo Guitar Chords
Omedetou
In-app purchases
Oolimo Guitar Chords
No in-app purchases
Omedetou
- Monthly$5.991 Month
- Yearly$49.991 Year
- Full Access$119.99
Questions
Is Oolimo Guitar Chords free?
Is Omedetou free?
Which has better reviews, Oolimo Guitar Chords or Omedetou?
Do Oolimo Guitar Chords or Omedetou have ads?
Which is updated more often, Oolimo Guitar Chords or Omedetou?
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