# King vs HEADCHECK

The clearest difference is rating: King at 5.0 against HEADCHECK's 1.7. King also leads on iOS requirement (9.0 vs 17.6). HEADCHECK's advantage is ratings volume (9 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

King holds the better App Store score, 5.0 against 1.7. Both are backed by a comparable volume of ratings — 2 and 9 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 15, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | King | HEADCHECK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/king-devick-test/id1033607954/reviews)** | [1.7 (9 ratings)](https://appshunter.io/ios/app/headcheck-concussion-app/id1049651838/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | — | 43.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 243 MB | 272 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [King-Devick Test, LLC](https://appshunter.io/developer/424793545) | [HeadCheck Health Inc.](https://appshunter.io/developer/1049651837) |

## What reviewers say

### King

[App page](https://appshunter.io/ios/app/king-devick-test/id1033607954)

This app provides a quick and objective sideline concussion screening test for athletes. It helps identify potential concussions by assessing eye movements, attention, and concentration through a simple number-reading exercise. Requires an existing King-Devick Online account.

**Highlights:** Objective sideline concussion screening, Assess eye movements and attention, Administer baseline and post-injury tests, Works offline, Suitable for ages 5+

**Features:** macOS Compatibility

**In-app purchases:** none


### HEADCHECK

[App page](https://appshunter.io/ios/app/headcheck-concussion-app/id1049651838)

This platform helps organizations manage concussion protocols for athletes. It allows medical personnel to conduct assessments and non-medical staff to report incidents. It includes a digital version of the SCAT6 assessment tool.

**Highlights:** Concussion protocol execution, Incident reporting, Digital SCAT6 assessment, Organization account access, Medical professional tools, Non-medical personnel reporting

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is King free?

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

### Is HEADCHECK free?

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

### Which has better reviews, King or HEADCHECK?

King is rated higher. King averages 5.0 out of 5 from 2 ratings, while HEADCHECK averages 1.7 from 9 ratings.

### Do King or HEADCHECK have ads?

Neither King nor HEADCHECK shows ads.

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

King ships an update every 2 months, and HEADCHECK every 2 months. Most recently, King was updated on September 15, 2026 and HEADCHECK on September 26, 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.*