King vs Athletic Trainer System (ATS)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
King
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.
- Objective sideline concussion screening
- Assess eye movements and attention
- Administer baseline and post-injury tests
- Works offline
- Suitable for ages 5+
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This app is intended ONLY for users with an existing King-Devick Online account. The King-Devick Concussion Screening Test is an objective, remove-from-play sideline concussion screening test which can be administered by parents, coaches, athletic trainers or medical professionals in minutes. Peer reviewed published research has shown that the King-Devick Test is an accurate and reliable method to help identify athletes with concussion on the sidelines. It has particular relevance to sports such as football, hockey, soccer, and basketball in addition to all other contact or collision activities on the field or at home. The test involves reading aloud a series of single digit numbers from left to right on three test cards. The King-Devick can detect impairment of eye movements, attention, language, concentration and other areas which correlate with concussion. How does King-Devick Test work? -King-Devick Test account holders get unlimited concussion screening per athlete per year. -With the King-Devick Test App, you can administer baseline and post-injury assessments even when WiFi is not available. -All athletes establish a pre-season or pre-injury baseline test score annually. -Concussion screening for athletes as young as 5 years old.
Athletic Trainer System (ATS)
This application offers real-time data for athletes and their injuries. It is designed for health and fitness professionals to manage athlete information and track progress.
- Real-time athlete data
- Injury tracking
- Athlete management
- Progress monitoring
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ATS provides real-time data for a variety of athletes and injuries.
Screenshots
Verdict
The clearest difference is rating: King at 5.0 against Athletic Trainer System (ATS)'s 2.5. King also leads on iOS requirement (9.0 vs 13.0). Athletic Trainer System (ATS)'s advantage is device support (3 vs 1) and ratings volume (6 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 2.5. Both are backed by a comparable volume of ratings — 2 and 6 respectively.
King ships an update every 2 months, Athletic Trainer System (ATS) every 4 weeks. The most recent releases landed on September 15, 2026 and September 19, 2026 respectively.
| Parameter | King | Athletic Trainer System (ATS) |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.5 (6 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 | 6 — better |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 243 MB | 23 MB |
| Age rating | 4+ | 17+ |
| Developer | King-Devick Test, LLC | Keffer Development Services, LLC |
Customer experience
King
Athletic Trainer System (ATS)
In-app purchases
King
No in-app purchases
Athletic Trainer System (ATS)
No in-app purchases
Questions
Is King free?
Is Athletic Trainer System (ATS) free?
Which has better reviews, King or Athletic Trainer System (ATS)?
Do King or Athletic Trainer System (ATS) have ads?
Which is updated more often, King or Athletic Trainer System (ATS)?
Other comparisons
