Comparison

King vs AGA MASH App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Migraine prodrome detection
  • Saccadic eye movement test
  • Automated speech recognition analysis
  • Comparison to historical test data
  • Guided test administration
  • Early intervention support
Read full description

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/

About

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.

Highlights
  • Clinical care pathway for NAFLD/NASH
  • Designed for healthcare professionals
  • Applicable in primary care settings
  • Supports specialist practices
  • Developed with medical education grants
Features
Read full description

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

AGA MASH App4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
King versus AGA MASH App: the parameters behind the verdict, then further details
ParameterKingAGA MASH App
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 2 months — betterEvery 15 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS12.0 — better15.1
Further details — not scored
Size220 MB30 MB
Age rating12+17+
DeveloperKing-Devick Test, LLCAmerican Gastroenterological Association

Customer experience

King

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

AGA MASH App

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

King

Subscriptions1
  • 1 Month Subscription$7.991 Month
None

AGA MASH App

No in-app purchases

Questions

Is King free?
King is free to download, with in-app purchases available.
Is AGA MASH App free?
AGA MASH App is free to download, with no in-app purchases.
Which has better reviews, King or AGA MASH App?
King and AGA MASH App are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do King or AGA MASH App have ads?
Neither King nor AGA MASH App shows ads.
Which is updated more often, King or AGA MASH App?
King ships an update every 2 months, and AGA MASH App every 15 months. Most recently, King was updated on November 2, 2026 and AGA MASH App on November 3, 2026.

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