# Headache Calendar vs Cranium

The clearest difference is in-app purchases: Cranium at none against Headache Calendar's 1. Cranium also leads on ratings volume (166 vs 35). Headache Calendar's advantage is update cadence (every 3 weeks vs every 5 months). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Headache Calendar sells 1 in-app purchase, starting at $14.99 per year. Cranium asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Headache Calendar against 4.6 for Cranium. Both are backed by a comparable volume of ratings — 35 and 166 respectively. Written reviews are what separate them: 70% of Headache Calendar's written reviews are positive against 73% of Cranium's.

Headache Calendar ships an update every 3 weeks, Cranium every 5 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Headache Calendar | Cranium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (35 ratings)](https://appshunter.io/ios/app/headache-calendar/id1523651899/reviews)** | [4.6 (166 ratings)](https://appshunter.io/ios/app/cranium-headache-diary/id6443540431/reviews) |
| Number of ratings | 35 | **166** |
| Positive reviews | 70.0% of reviews | **73.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 31 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [KBB Medic AS](https://appshunter.io/developer/1408661530) | [Elena Zhalina](https://appshunter.io/developer/1646949800) |

## What reviewers say

### Headache Calendar

[App page](https://appshunter.io/ios/app/headache-calendar/id1523651899)

Track your headache and migraine episodes to understand their development over time. Gain insights into trends, treatments, and lifestyle changes that may reduce headache frequency and severity. Securely share your data with your clinician for better management.

**Highlights:** Headache and migraine tracking, Episode development overview, Trend analysis charts, Treatment and lifestyle impact exploration, Secure clinician sharing, Insight into episode patterns

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12 Months | $14.99 | per year |


### Cranium

[App page](https://appshunter.io/ios/app/cranium-headache-diary/id6443540431)

Easily log headache attacks, symptoms, and medication use. Generate clear reports to identify triggers and discuss with your doctor. Integrates with Health app for menstrual cycle correlation.

**Highlights:** Quick attack logging, Symptom and trigger tracking, Medication tracking, Doctor-shareable reports, Menstrual cycle correlation

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

**In-app purchases:** none


## Frequently asked questions

### Is Headache Calendar free?

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

### Is Cranium free?

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

### Which has better reviews, Headache Calendar or Cranium?

Headache Calendar is rated higher. Headache Calendar averages 4.7 out of 5 from 35 ratings, while Cranium averages 4.6 from 166 ratings.

### Do Headache Calendar or Cranium have ads?

Neither Headache Calendar nor Cranium shows ads.

### Which is updated more often, Headache Calendar or Cranium?

Headache Calendar ships an update every 3 weeks, and Cranium every 5 months. Most recently, Headache Calendar was updated on November 11, 2026 and Cranium on November 12, 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.*