# Migraine Diary Reminder vs Alison

The clearest difference is in-app purchases: Migraine Diary Reminder at none against Alison's 1. Alison's advantage is update cadence (weekly vs every 3 months) and device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Alison sells 1 in-app purchase, starting at $0.99 per month. Migraine Diary Reminder asks for nothing beyond the download.

Migraine Diary Reminder ships an update every 3 months, Alison weekly. The most recent releases landed on October 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Migraine Diary Reminder | Alison |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alison/id6803248485/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 16 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Denys Kolosovskyy](https://appshunter.io/developer/1674375733) | [Paturious Grey](https://appshunter.io/developer/6803190947) |

## What reviewers say

### Migraine Diary Reminder

[App page](https://appshunter.io/ios/app/migraine-diary-reminder/id6743403202)

**Features:** macOS Compatibility

**In-app purchases:** none


### Alison

[App page](https://appshunter.io/ios/app/alison/id6803248485)

Track headaches, meals, water, and sleep with this personal journal. It offers observational insights into potential patterns without diagnosing or forecasting. Data remains on your device for privacy.

**Highlights:** Start and stop headache logging, Log meals with ingredients, Track water and sleep intake, Optional Apple Watch integration, Read-only Apple Health integration, Optional weather data, Generate clinic letters

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep Monthly | $0.99 | per month |


## Frequently asked questions

### Is Migraine Diary Reminder free?

Migraine Diary Reminder is free to download, with no in-app purchases.

### Is Alison free?

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

### Do Migraine Diary Reminder or Alison have ads?

Neither Migraine Diary Reminder nor Alison shows ads.

### Which is updated more often, Migraine Diary Reminder or Alison?

Migraine Diary Reminder ships an update every 3 months, and Alison weekly. Most recently, Migraine Diary Reminder was updated on October 4, 2026 and Alison on October 25, 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.*