# Headache Detective vs Ache

The clearest difference is update cadence: Ache at daily against Headache Detective's weekly. Headache Detective's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Headache Detective sells 2 in-app purchases, starting at $3.99 per month and Ache sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Headache Detective ships an update weekly, Ache daily. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Headache Detective | Ache |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 15 MB | 37 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Riku Kuisma](https://appshunter.io/developer/1853885657) | [Exhalo](https://appshunter.io/developer/1683499451) |

## What reviewers say

### Headache Detective

[App page](https://appshunter.io/ios/app/headache-detective-tracker/id6772620047)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $29.99 | per year |


### Ache

[App page](https://appshunter.io/ios/app/ache-headache-tracker-and-diary/id6774178311)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Free Trial | $2.99 | per 7 days |
| Headache Tracker Annual Premium | $39.99 | per year |


## Frequently asked questions

### Is Headache Detective free?

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

### Is Ache free?

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

### Do Headache Detective or Ache have ads?

Neither Headache Detective nor Ache shows ads.

### Which is updated more often, Headache Detective or Ache?

Headache Detective ships an update weekly, and Ache daily. Most recently, Headache Detective was updated on October 24, 2026 and Ache on October 8, 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.*