# King vs InStep Movement Analytics

The clearest difference is ads: King at none against InStep Movement Analytics's shown. King also leads on monetization model (free vs ad-supported) and iOS requirement (9.0 vs 14.2). InStep Movement Analytics's advantage is device support (3 vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for King against 5.0 for InStep Movement Analytics. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

King ships an update every 2 months, InStep Movement Analytics monthly. The most recent releases landed on June 11, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | King | InStep Movement Analytics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/king-devick-test/id1033607954/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/instep-movement-analytics/id6504697583/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Ad-supported |
| Size | 243 MB | 202 MB |
| Requires iOS | **9.0** | 14.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [King-Devick Test LLC](https://appshunter.io/developer/424793545) | [InStep](https://appshunter.io/developer/1676947349) |

## 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


### InStep Movement Analytics

[App page](https://appshunter.io/ios/app/instep-movement-analytics/id6504697583)

This app helps athletes understand their movement patterns and track injury recovery using AI. It establishes personalized movement baselines, logs injuries, and measures recovery progress with data-driven insights. Ideal for athletes and team staff to make informed decisions about player health.

**Highlights:** AI-powered movement fingerprinting, Personalized health baseline creation, Injury logging and recovery tracking, Static and dynamic balance testing, Team management portal, Data-driven health insights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is King free?

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

### Is InStep Movement Analytics free?

InStep Movement Analytics is free to download, with no in-app purchases.

### Which has better reviews, King or InStep Movement Analytics?

King and InStep Movement Analytics are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do King or InStep Movement Analytics have ads?

InStep Movement Analytics shows ads; King does not.

### Which is updated more often, King or InStep Movement Analytics?

King ships an update every 2 months, and InStep Movement Analytics monthly. Most recently, King was updated on June 11, 2026 and InStep Movement Analytics on September 10, 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.*