# Improver app vs Migraine Diary

The clearest difference is in-app purchases: Improver app at none against Migraine Diary's 2. Migraine Diary's advantage is update cadence (every 2 weeks vs every 3 months) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Migraine Diary sells 2 in-app purchases, starting at $3.99 per month. Improver app asks for nothing beyond the download.

Improver app ships an update every 3 months, Migraine Diary every 2 weeks. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Improver app | Migraine Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 45 MB | 8 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [Ready2Improve CVBA](https://appshunter.io/developer/1441304952) | [graimatter](https://appshunter.io/developer/1841322252) |

## What reviewers say

### Improver app

[App page](https://appshunter.io/ios/app/improver-app/id1441304953)

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

**In-app purchases:** none


### Migraine Diary

[App page](https://appshunter.io/ios/app/migraine-diary-headyogi/id6752848965)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeadYogi Pro Maandelijks | $3.99 | per month |
| HeadYogi Pro Jaarlijks | $29.99 | per year |


## Frequently asked questions

### Is Improver app free?

Improver app is free to download, with no in-app purchases.

### Is Migraine Diary free?

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

### Do Improver app or Migraine Diary have ads?

Neither Improver app nor Migraine Diary shows ads.

### Which is updated more often, Improver app or Migraine Diary?

Improver app ships an update every 3 months, and Migraine Diary every 2 weeks. Most recently, Improver app was updated on October 26, 2026 and Migraine Diary on October 28, 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.*