# Headache Guide vs Alison

The clearest difference is update cadence: Alison at every 2 weeks against Headache Guide's every 2 months. Alison also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Headache Guide sells 1 one-off in-app purchase and Alison sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Headache Guide ships an update every 2 months, Alison every 2 weeks. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Headache Guide | Alison |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alison/id6803248485/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 16 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 12+ |
| Developer | [Arjen Broeze](https://appshunter.io/developer/1369424694) | [Paturious Grey](https://appshunter.io/developer/6803190947) |

## What reviewers say

### Headache Guide

[App page](https://appshunter.io/ios/app/headache-guide/id6800287193)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HoofdpijnWijzer Compleet | $8.99 | one-time |


### Alison

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

This app helps you track headaches by logging symptoms, meals, water, and sleep. It identifies potential patterns in your data to share with a clinician. Your journal remains private and on your device.

**Highlights:** Start and stop headache tracking, 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 Headache Guide free?

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

### Is Alison free?

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

### Do Headache Guide or Alison have ads?

Neither Headache Guide nor Alison shows ads.

### Which is updated more often, Headache Guide or Alison?

Headache Guide ships an update every 2 months, and Alison every 2 weeks. Most recently, Headache Guide was updated on October 31, 2026 and Alison on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*