King vs AGA MASH App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
King
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.
- Migraine prodrome detection
- Saccadic eye movement test
- Automated speech recognition analysis
- Comparison to historical test data
- Guided test administration
- Early intervention support
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The easy-to-use King-Devick Migraine Headache Early Detection (MiHED™) iPad App is intended for use by an individual with a history of Migraine Headache in order to detect the prodrome (pre-headache) phase of a migraine attack. The prodrome often occurs 1-6 hours prior to the headache phase of the migraine attack. This product may therefore forecast an oncoming migraine headache. Peer reviewed published research has shown that administering certain migraine headache treatment medication in the prodromal (pre-headache) stage can be effective in reducing the effects of, or even preventing the migraine headache attack. The App will guide individuals through the King-Devick Test. It is a test of saccadic eye movements which requires users to read aloud randomly spaced single-digit numbers as quickly and accurately as possible on three progressively more difficult screen patterns. Peer reviewed published research has shown by using innovative automated speech recognition technology, the App will instantly analyse a user’s King-Devick Test performance and compare results to any previous King-Devick Test history available. Subscribers will be able to administer unlimited King-Devick Tests for one individual. Please note, this App is only compatible with iPad, iPad Air and iPad Pro (not compatible with iPhone or iPad Mini). MiHED should only be used in conjunction with professional medical advice, diagnosis, or treatment and not as a substitute or a replacement for it. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
AGA MASH App
This medical app provides healthcare professionals with a clinical care pathway for managing patients with NAFLD and NASH. It's designed for use in various practice settings, including primary care and specialist clinics.
- Clinical care pathway for NAFLD/NASH
- Designed for healthcare professionals
- Applicable in primary care settings
- Supports specialist practices
- Developed with medical education grants
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American Gastroenterological Association’s MASH Clinical Care Pathway app is for use in any setting where health care professionals care for patients with MASH / MASLD, including primary care, endocrine, obesity medicine and gastroenterology practices. Developed with support by independent medical education grants from Intercept Pharmaceuticals, Inc., Pfizer Inc., Allergan, and Genfit. For more information visit gastro.org.
Screenshots
Verdict
The clearest difference is in-app purchases: AGA MASH App at none against King's 1. AGA MASH App also leads on device support (3 vs 1). King's advantage is update cadence (every 2 months vs every 15 months) and iOS requirement (12.0 vs 15.1). On price, rating, ratings volume and ads 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. King sells 1 in-app purchase, starting at $7.99 per month. AGA MASH App asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for King against 5.0 for AGA MASH App. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
King ships an update every 2 months, AGA MASH App every 15 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | King | AGA MASH App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 220 MB | 30 MB |
| Age rating | 12+ | 17+ |
| Developer | King-Devick Test, LLC | American Gastroenterological Association |
Customer experience
King
AGA MASH App
In-app purchases
King
- 1 Month Subscription$7.991 Month
AGA MASH App
No in-app purchases









