# ChordProg Ear Trainer vs Oolimo Guitar Chords

The clearest difference is price: ChordProg Ear Trainer at Free against Oolimo Guitar Chords's $5.99. ChordProg Ear Trainer also leads on update cadence (every 5 days vs every 6 weeks) and iOS requirement (14.0 vs 16). Oolimo Guitar Chords's advantage is in-app purchases (none vs 2) and rating (4.8 vs 4.4). On ads and device support there is nothing between them.

ChordProg Ear Trainer is free to download; Oolimo Guitar Chords costs $5.99 up front. ChordProg Ear Trainer sells 2 in-app purchases, starting at $2.99 per month. Oolimo Guitar Chords asks for nothing beyond the download.

Oolimo Guitar Chords holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Oolimo Guitar Chords has 105 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 75% of ChordProg Ear Trainer's written reviews are positive against 92% of Oolimo Guitar Chords's.

ChordProg Ear Trainer ships an update every 5 days, Oolimo Guitar Chords every 6 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | ChordProg Ear Trainer | Oolimo Guitar Chords |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.4 (16 ratings)](https://appshunter.io/ios/app/chordprog-ear-trainer/id1454739512/reviews) | **[4.8 (105 ratings)](https://appshunter.io/ios/app/oolimo-guitar-chords/id1463331841/reviews)** |
| Number of ratings | 16 | **105** |
| Positive reviews | 75.0% of reviews | **91.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | — | **#48** |
| Size | 116 MB | 15 MB |
| Requires iOS | **14.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [DevDa AS](https://appshunter.io/developer/1708225323) | [Oliver Mochmann](https://appshunter.io/developer/1463331840) |

## What reviewers say

### ChordProg Ear Trainer

[App page](https://appshunter.io/ios/app/chordprog-ear-trainer/id1454739512)

This app offers a realistic music training experience by using real audio clips to teach chord progressions, intervals, chords, and scales. It provides over 500 audio clips for practice and is designed to help prepare users for ear training tests.

**Highlights:** Chord progression recognition, Interval recognition exercises, Chord recognition exercises, Scale recognition exercises, 500+ real audio clips, Music theory exploration, Regular updates with new features

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly premium subscription! | $2.99 | per month |
| Yearly Premium Subscription! | $24.99 | per year |


### Oolimo Guitar Chords

[App page](https://appshunter.io/ios/app/oolimo-guitar-chords/id1463331841)

**Currently charting:** #48 Top Paid · Education (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ChordProg Ear Trainer free?

ChordProg Ear Trainer is free to download, with in-app purchases available.

### Is Oolimo Guitar Chords free?

Oolimo Guitar Chords costs $5.99, with no in-app purchases.

### Which has better reviews, ChordProg Ear Trainer or Oolimo Guitar Chords?

Oolimo Guitar Chords is rated higher. ChordProg Ear Trainer averages 4.4 out of 5 from 16 ratings, while Oolimo Guitar Chords averages 4.8 from 105 ratings.

### Do ChordProg Ear Trainer or Oolimo Guitar Chords have ads?

Neither ChordProg Ear Trainer nor Oolimo Guitar Chords shows ads.

### Which is updated more often, ChordProg Ear Trainer or Oolimo Guitar Chords?

ChordProg Ear Trainer ships an update every 5 days, and Oolimo Guitar Chords every 6 weeks. Most recently, ChordProg Ear Trainer was updated on November 2, 2026 and Oolimo Guitar Chords on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*