# Calibrate vs Hayley

The clearest difference is iOS requirement: Calibrate at 16.0 against Hayley's 26.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Calibrate sells 3 in-app purchases, starting at $8.99 per month and Hayley sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Calibrate ships an update every 10 days, Hayley weekly. The most recent releases landed on October 28, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Calibrate | Hayley |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Size | 41 MB | 1 MB |
| Requires iOS | **16.0** | 26.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Mads Borg Hundahl](https://appshunter.io/developer/1882736185) | [SIRO Social Ltd](https://appshunter.io/developer/1460243091) |

## What reviewers say

### Calibrate

[App page](https://appshunter.io/ios/app/calibrate-adhd-med-tracker/id6766873101)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.99 | per month |
| Yearly | $49.99 | per year |
| 90-Day Pass | $29.99 | one-time |


### Hayley

[App page](https://appshunter.io/ios/app/hayley/id6767863655)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hayley Monthly | $4.99 | per month |
| Hayley Annual | $44.99 | per year |


## Frequently asked questions

### Is Calibrate free?

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

### Is Hayley free?

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

### Do Calibrate or Hayley have ads?

Neither Calibrate nor Hayley shows ads.

### Which is updated more often, Calibrate or Hayley?

Calibrate ships an update every 10 days, and Hayley weekly. Most recently, Calibrate was updated on October 28, 2026 and Hayley on October 9, 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.*