# ChordChanges vs Pilot Math!

The clearest difference is in-app purchases: Pilot Math! at none against ChordChanges's 2. Pilot Math! also leads on update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChordChanges sells 2 one-off in-app purchases. Pilot Math! asks for nothing beyond the download.

ChordChanges ships an update monthly, Pilot Math! weekly. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ChordChanges | Pilot Math! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 20 MB | 24 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Werner Michaelis](https://appshunter.io/developer/485687856) | [mehmetmh sarikose](https://appshunter.io/developer/1678509281) |

## What reviewers say

### ChordChanges

[App page](https://appshunter.io/ios/app/chordchanges/id1432851760)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| Unlock ChordChanges | $0.99 | one-time |


### Pilot Math!

[App page](https://appshunter.io/ios/app/pilot-math/id6446653385)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChordChanges free?

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

### Is Pilot Math! free?

Pilot Math! is free to download, with no in-app purchases.

### Do ChordChanges or Pilot Math! have ads?

Neither ChordChanges nor Pilot Math! shows ads.

### Which is updated more often, ChordChanges or Pilot Math!?

ChordChanges ships an update monthly, and Pilot Math! weekly. Most recently, ChordChanges was updated on October 6, 2026 and Pilot Math! on October 5, 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.*