# Hermly vs Migraine Sentry

Hermly and Migraine Sentry are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Hermly sells 1 in-app purchase, starting at $49.99 per year and Migraine Sentry sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Hermly | Migraine Sentry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/migraine-sentry-forecast/id6789877577/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Monetization | — | Freemium |
| Size | 10 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [就洪 邓](https://appshunter.io/developer/1569775618) | [KJC International Limited](https://appshunter.io/developer/6789877579) |

## What reviewers say

### Hermly

[App page](https://appshunter.io/ios/app/hermly/id6769331377)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hermly Pro — Annual | $49.99 | per year |


### Migraine Sentry

[App page](https://appshunter.io/ios/app/migraine-sentry-forecast/id6789877577)

This app forecasts migraine vulnerability by analyzing your personal health data, weather patterns, and environmental factors. It provides daily and weekly outlooks, identifies potential triggers, and offers insights into effective treatments. Log migraines easily and receive a clinical report for your doctor.

**Highlights:** Personal migraine vulnerability forecast, Seven-day outlook (weather, pressure, patterns), Passive health data analysis (sleep, HRV, etc.), Personal trigger rankings, Plain-language explanation of changes, Fast logging with Live Activity, Clinical PDF report for doctors

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Annual | $29.99 | per year |


## Frequently asked questions

### Is Hermly free?

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

### Is Migraine Sentry free?

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

### Do Hermly or Migraine Sentry have ads?

Neither Hermly nor Migraine Sentry shows ads.

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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.*