Comparison

Oolimo Guitar Chords vs TriadsPro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Currently charting
Read full description

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.

About

TriadsPro

Learn and master guitar triads and inversions with interactive visualizations, progression building tools, and practice games. This app helps guitarists understand theory without overwhelm and play confidently in various genres.

Highlights
  • Instant triad visualization on interactive fretboard
  • Build chord progressions using Nashville Number System
  • Master movable triad shapes
  • Jam along with backing tracks
  • Memorization game for triads and inversions
  • Offline access
Features
Read full description

Learn guitar triads the smart way with TriadsPro – the ultimate app for guitarists who want to finally understand and master triads, inversions, and progressions without the overwhelm of scattered PDFs and YouTube videos. Why Guitarists Love TriadsPro • Instant Triad Visualization 
Pick any key and instantly see every major and minor triad, plus 1st and 2nd inversions on a clear, interactive fretboard. No more flipping through chord charts. • Build Real Chord Progressions 
Use the Nashville Number System to create and transpose triad-based progressions in seconds. Perfect for learning songs faster and switching keys on the fly. • Master Movable Triad Shapes 
“Hack-it” mode teaches repeatable voicing patterns you can slide anywhere on the neck. Play triads in any key without memorizing hundreds of shapes – the secret to pro-sounding playing. • Jam Along to Real Songs 
Play along with backing tracks featuring simple triad progressions. One tap opens four fretboard views showing exactly which triads to play – no pausing or guessing. • Memorize Triads with a Fun Game
 Test yourself by identifying triads on the fretboard and naming them. The fastest way to lock triads and inversions into muscle memory. Perfect for Worship, Pop, Rock & Jazz Guitarists Whether you’re playing modern worship songs, pop hits, or jazz standards, TriadsPro helps you use triads musically and confidently. Key Features • Clean, beautiful interactive fretboard • Major & minor triads + inversions in every key • Nashville Number System progressions • Movable triad voicings & shapes • Backing tracks with visual triad guides • Memorization game with instant feedback • Offline access – no internet required • One-time purchase – no subscription ever Stop struggling with theory overload. Download TriadsPro today and finally make guitar triads work for you. Works on iPhone, and iPad iOS 16 or later required Perfect for guitarists looking to: • Learn guitar triads fast • Master triad inversions • Play chord progressions better • Use movable triad shapes • Understand Nashville numbers on guitar • Improve worship or band playing © 2025 TriadsPro. All rights reserved.

Screenshots

Oolimo Guitar Chords4 screens
TriadsPro4 screens

Verdict

The call

The clearest difference is monetization model: Oolimo Guitar Chords at free against TriadsPro's paid. Oolimo Guitar Chords also leads on ratings volume (102 vs 2) and chart position (#156 vs unranked). TriadsPro's advantage is update cadence (weekly vs every 6 weeks) and rating (5.0 vs 4.8). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Oolimo Guitar Chords costs $5.99 and TriadsPro $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TriadsPro 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 102 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 92% of Oolimo Guitar Chords's written reviews are positive against 100% of TriadsPro's.

UpkeepUpdate frequency

Oolimo Guitar Chords ships an update every 6 weeks, TriadsPro weekly. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

Scorecard6 real differences · 5 level
Oolimo Guitar Chords versus TriadsPro: the parameters behind the verdict, then further details
ParameterOolimo Guitar ChordsTriadsPro
Price$5.99$5.99
Rating4.8 (102 ratings)5.0 (2 ratings) — better
Positive reviews91.6% of reviews100.0% of reviews — better
Number of ratings102 — better2
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#156 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1615.6 — better
Further details — not scored
Size15 MB92 MB
Age rating9+4+
DeveloperOliver MochmannCHRISTIAN TRUJILLO

Customer experience

Oolimo Guitar Chords

All ratings102 ratings
Positive95.1%
Neutral2.9%
Negative2.0%
Written reviews119 reviews
Positive91.6%
Neutral7.6%
Negative0.8%

TriadsPro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Oolimo Guitar Chords

No in-app purchases

None

TriadsPro

No in-app purchases

Questions

Is Oolimo Guitar Chords free?
Oolimo Guitar Chords costs $5.99, with no in-app purchases.
Is TriadsPro free?
TriadsPro costs $5.99, with no in-app purchases.
Which has better reviews, Oolimo Guitar Chords or TriadsPro?
TriadsPro is rated higher. Oolimo Guitar Chords averages 4.8 out of 5 from 102 ratings, while TriadsPro averages 5.0 from 2 ratings.
Do Oolimo Guitar Chords or TriadsPro have ads?
Neither Oolimo Guitar Chords nor TriadsPro shows ads.
Which is updated more often, Oolimo Guitar Chords or TriadsPro?
Oolimo Guitar Chords ships an update every 6 weeks, and TriadsPro weekly. Most recently, Oolimo Guitar Chords was updated on October 18, 2026 and TriadsPro on October 8, 2026.

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