# King vs Ice Den Performance

The clearest difference is ads: King at none against Ice Den Performance's shown. King also leads on iOS requirement (9.0 vs 14.0). Ice Den Performance's advantage is update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price 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 ships an update every 2 months, Ice Den Performance every 3 weeks. The most recent releases landed on June 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | King | Ice Den Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/king-devick-test/id1033607954/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 243 MB | 130 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [King-Devick Test LLC](https://appshunter.io/developer/424793545) | [Ice Den Performance, LLC](https://appshunter.io/developer/1557279584) |

## 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


### Ice Den Performance

[App page](https://appshunter.io/ios/app/ice-den-performance/id1557279582)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is King free?

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

### Is Ice Den Performance free?

Ice Den Performance is free to download, with no in-app purchases.

### Do King or Ice Den Performance have ads?

Ice Den Performance shows ads; King does not.

### Which is updated more often, King or Ice Den Performance?

King ships an update every 2 months, and Ice Den Performance every 3 weeks. Most recently, King was updated on June 11, 2026 and Ice Den Performance on September 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.*