# ChordSense vs OB

The clearest difference is price: ChordSense at Free against OB's $24.99. OB's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On ads there is nothing between them.

ChordSense is free to download; OB costs $24.99 up front. ChordSense sells 1 one-off in-app purchase. OB asks for nothing beyond the download.

## The numbers

| Metric | ChordSense | OB |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 35 MB |
| Requires iOS | 18.0 | **15.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [MICHAEL,GABRIEL DI GIUSEPPE,](https://appshunter.io/developer/1693416098) | [Johannes Bramauer](https://appshunter.io/developer/1787153663) |

## What reviewers say

### ChordSense

[App page](https://appshunter.io/ios/app/chordsense/id6463805909)

This app helps musicians learn chord structures and create custom progressions. It offers tools for songwriting, a library of pre-made sequences, and sound customization. Suitable for beginners and experienced musicians alike.

**Highlights:** Learn chord structures, Create custom progressions, Explore pre-made progressions, Extensive sound customization, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChordSense Plus | $3.99 | one-time |


### OB

[App page](https://appshunter.io/ios/app/ob-6-companion/id6742120159)

**In-app purchases:** none


## Frequently asked questions

### Is ChordSense free?

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

### Is OB free?

OB costs $24.99, with no in-app purchases.

### Do ChordSense or OB have ads?

Neither ChordSense nor OB shows ads.

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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.*