# Chordology vs ABC2Tab

The clearest difference is iOS requirement: ABC2Tab at 16.0 against Chordology's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Chordology sells 1 one-off in-app purchase and ABC2Tab sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Chordology ships an update every 3 days, ABC2Tab every 2 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Chordology | ABC2Tab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (231 ratings)](https://appshunter.io/ios/app/chordology/id691133982/reviews)** | — |
| Number of ratings | **231** | — |
| Positive reviews | 65.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 142 MB | 1 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Greg Raine](https://appshunter.io/developer/1896538832) | [yoshiaki okazaki](https://appshunter.io/developer/576682717) |

## What reviewers say

### Chordology

[App page](https://appshunter.io/ios/app/chordology/id691133982)

Access hundreds of thousands of chord variations for multiple instruments like guitar, piano, and ukulele. Features a minimalist, fast interface and supports iPhone, iPad, and OSX. Enjoy a completely ad-free experience.

**Highlights:** Multi-instrument chord dictionary, Hundreds of thousands of chords, Thousands of chord variations, Guitar, piano, ukulele support, Minimalist interface, Ad-free

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chordology Pro | $5.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy to use
- ✨ Clean and minimalist design
- 💡 Great for learning chords
- 🚀 Fast chord lookup
- 🎹 Useful for composition

**What reviewers complain about**

- 👎 Outdated UI on iPad
- 🐛 Voicing mismatch (display vs. sound)
- 🐛 Octave difference (display vs. sound)
- 🐛 Inaccurate chord identification (minor/major)
- 🐛 Non-functional options screen

**Reported bugs**

- Voicing displayed doesn't match played voicing
- Played chord is an octave higher than displayed
- Shows minor chords as major and vice-versa
- iPad version is a stretched iPhone UI
- Options screen is non-functional

**Requested features**

- Ability to hear chords as displayed
- Toggle between numbers and note names
- Color scheme customization
- Add five-string banjo
- Add baritone ukulele


### ABC2Tab

[App page](https://appshunter.io/ios/app/abc2tab/id6782300085)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ABC2Tab Pro Monthly | $2.99 | per month |


## Frequently asked questions

### Is Chordology free?

Chordology is free to download, with in-app purchases available.

### Is ABC2Tab free?

ABC2Tab is free to download, with in-app purchases available.

### Do Chordology or ABC2Tab have ads?

Neither Chordology nor ABC2Tab shows ads.

### Which is updated more often, Chordology or ABC2Tab?

Chordology ships an update every 3 days, and ABC2Tab every 2 days. Most recently, Chordology was updated on October 15, 2026 and ABC2Tab on October 16, 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.*