Comparison

Visual Motor Integration vs K

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

Head to head
About

Visual Motor Integration

This app helps children develop hand-eye coordination and fine motor skills through engaging tracing activities. It focuses on precision, confidence, and fluid movement with progressive exercises covering lines, curves, mazes, and letters.

Highlights
  • Hand-eye coordination development
  • Fine motor skill enhancement
  • Playful tracing activities
  • Progressive exercises
  • Pre-writing skill building
  • Distraction-free learning
Features
Read full description

Build hand–eye coordination and fine motor control through playful, carefully designed tracing activities that help children develop precision, confidence, and fluid movement. What children practice: Vertical and horizontal lines Diagonal strokes Curves and flowing waves Bridges and looping shapes Zigzags and simple mazes Letters of the alphabet Key vocabulary from the primary school curriculum Each activity is progressive, encouraging accuracy, rhythm, and visual tracking while keeping learning enjoyable and stress-free. Privacy & Safety first Designed for complete peace of mind: -No data collected -No advertising -No in-app purchases -No analytics or tracking tools -No links to social networks An ideal tool for building essential pre-writing and motor skills in a calm, secure, and distraction-free environment—at home or in the classroom.

About

K

This application helps clinicians monitor and track the progression of Age-Related Macular Degeneration (AMD). It can be used by patients for home screening, with results remotely monitored by clinical staff. Early detection of wet AMD is crucial for timely treatment.

Highlights
  • Monitor AMD progression
  • Track dry to wet AMD
  • Home screening tool
  • Remote monitoring by clinicians
  • Early detection of wet AMD
Features
Read full description

King-Devick Variable Color Contrast Sensitivity Chart is an iPad/iPhone-based product application that allows clinicians to monitor and track the progression of Age-Related Macular Degeneration (AMD) from non-exudative (dry) AMD to exudative (wet) AMD. It is critical to know when exudative (wet) AMD begins to occur so the treatment with a-VEGF injections can begin. King-Devick Variable Color Contrast Sensitivity Chart has been proven to be a helpful tool in detecting progression of disease in Age-Related Macular Degeneration. King-Devick Variable Contrast Sensitivity Chart can be used by the patient as a simple home-screening tool monitored by clinician’s staff remotely or in-office screening. Our Terms of Use are available here https://kingdevicktest.com/terms-of-service/

Screenshots

Visual Motor Integration3 screens
K1 screens

Verdict

The call

The clearest difference is price: K at Free against Visual Motor Integration's $1.99. K also leads on rating (5.0 vs 4.0) and iOS requirement (8.0 vs 12.0). Visual Motor Integration's advantage is in-app purchases (none vs 1). On ratings volume, update cadence, ads and device support 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

K is free to download; Visual Motor Integration costs $1.99 up front. K sells 1 in-app purchase, starting at $51.99 per year. Visual Motor Integration asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

K holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Visual Motor Integration ships an update every 51 months, K every 32 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Visual Motor Integration versus K: the parameters behind the verdict, then further details
ParameterVisual Motor IntegrationK
Price$1.99Free — better
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings11
Update frequencyEvery 51 monthsEvery 32 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.08.0 — better
Further details — not scored
Size14 MB64 MB
Age rating4+12+
DeveloperTOUCHSCREEN LEARNING LTDKing-Devick Test, LLC

Customer experience

Visual Motor Integration

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

K

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Visual Motor Integration

No in-app purchases

1 purchases

K

Subscriptions1
  • Annual Subscription$51.991 Year

Questions

Is Visual Motor Integration free?
Visual Motor Integration costs $1.99, with no in-app purchases.
Is K free?
K is free to download, with in-app purchases available.
Which has better reviews, Visual Motor Integration or K?
K is rated higher. Visual Motor Integration averages 4.0 out of 5 from 1 ratings, while K averages 5.0 from 1 ratings.
Do Visual Motor Integration or K have ads?
Neither Visual Motor Integration nor K shows ads.
Which is updated more often, Visual Motor Integration or K?
Visual Motor Integration ships an update every 51 months, and K every 32 months. Most recently, Visual Motor Integration was updated on November 2, 2026 and K on November 3, 2026.

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