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 medical app helps healthcare professionals assess vestibular dysfunction by measuring balance stance metrics. It uses a device's accelerometer to objectively score balance after voice-guided exercises. Professionals can track patient progress over time.

Highlights
  • Vestibular dysfunction assessment
  • Measures balance stance metrics
  • Uses device accelerometer
  • Objective balance scoring
  • Longitudinal patient assessment
  • Voice-guided exercises
Features
Read full description

K-D Balance is an FDA-cleared app used by trained professionals — including athletic trainers and coaches, physical therapists, nurses, physicians, and other trained professionals . This app is intended only for users with an existing K-D Balance account. K-D Balance assesses three balance stances: double stance, right tandem stance and left tandem stance. To use K-D Balance, an iPhone or iPod touch is secured to the individual during the assessment. A hands-free, wearable device holder may be used to help stabilise the device. After step-by-step voice guidance for each stance, an objective balance score is automatically derived by detecting the individual's movements using the device's internal accelerometer. Trained professionals can compare an individual's K-D Balance assessments longitudinally.

Screenshots

Visual Motor Integration3 screens
K2 screens

Verdict

The call

The clearest difference is price: K at Free against Visual Motor Integration's $1.99. K also leads on update cadence (every 3 months vs every 51 months) and ratings volume (3 vs 1). Visual Motor Integration's advantage is rating (4.0 vs 3.7) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Visual Motor Integration holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Visual Motor Integration ships an update every 51 months, K every 3 months. The most recent releases landed on October 2, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 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) — better3.7 (3 ratings)
Positive reviews50.0% of reviews—
Number of ratings13 — better
Update frequencyEvery 51 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size14 MB147 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 ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Visual Motor Integration

No in-app purchases

None

K

No in-app purchases

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 no in-app purchases.
Which has better reviews, Visual Motor Integration or K?
Visual Motor Integration is rated higher. Visual Motor Integration averages 4.0 out of 5 from 1 ratings, while K averages 3.7 from 3 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 3 months. Most recently, Visual Motor Integration was updated on October 2, 2026 and K on September 23, 2026.

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