# King vs EpiCheck

The clearest difference is in-app purchases: EpiCheck at none against King's 1. EpiCheck also leads on update cadence (monthly vs every 2 months) and device support (3 vs 1). King's advantage is iOS requirement (12.0 vs 15.6). On price and ads there is nothing between them.

Both are free to download. King sells 1 in-app purchase, starting at $7.99 per month. EpiCheck asks for nothing beyond the download.

King ships an update every 2 months, EpiCheck monthly. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | King | EpiCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/king-devick-migraine-headache/id1359829374/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 220 MB | 19 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [King-Devick Test, LLC](https://appshunter.io/developer/424793545) | [Evgenii Nazarov](https://appshunter.io/developer/1642557416) |

## What reviewers say

### King

[App page](https://appshunter.io/ios/app/king-devick-migraine-headache/id1359829374)

This app helps individuals with a history of migraines detect the early prodrome phase before a headache begins. It uses a guided eye movement test with automated speech recognition to analyze performance and compare it to past results, potentially aiding in timely treatment.

**Highlights:** Migraine prodrome detection, Saccadic eye movement test, Automated speech recognition analysis, Comparison to historical test data, Guided test administration, Early intervention support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $7.99 | per month |


### EpiCheck

[App page](https://appshunter.io/ios/app/epicheck/id6470154725)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is King free?

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

### Is EpiCheck free?

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

### Do King or EpiCheck have ads?

Neither King nor EpiCheck shows ads.

### Which is updated more often, King or EpiCheck?

King ships an update every 2 months, and EpiCheck monthly. Most recently, King was updated on October 13, 2026 and EpiCheck on October 17, 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.*