Comparison

King vs TVPS Calc

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

Head to head
About

King

This application assists individuals with eye movement deficits stemming from neurological impairment. It facilitates practice with an oculomotor program, presenting number targets for reading aloud to improve vision-related symptoms after brain injury. The program offers adjustable speed settings and tracks progress.

Highlights
  • Oculomotor program practice
  • Dynamic number target presentation
  • Adjustable speed settings
  • Instant outcome measures
  • Compliance monitoring
  • Requires existing account
Features
Read full description

King-Devick Recovery Practice is the companion iPad App for the K-D Recovery Acceleration Program (K-D RAP) and helps individuals with eye movement deficits as a result of neurological impairment. Why K-D Recovery Acceleration Program? Following a brain injury, up to 90% of individuals experience vision-related symptoms. K-D RAP is a web and app-based oculomotor program. The individual reads aloud dynamically presented number targets quickly on a computer or iPad. Speed settings are easily adjusted and increased with ongoing practice. K-D RAP provides instant outcome measures and compliance monitoring over the course of recovery. About this App This app can only be used with an existing King-Devick Recovery Acceleration Program account and requires internet access to function. King-Devick Recovery Practice is intended for practicing individuals. It has been validated on iPads with a 9.7" display or larger.

About

TVPS Calc

This application simplifies administering and analyzing TVPS-4 tests. It allows for complete or partial test completion, raw score entry, and detailed results visualization including age and percentile equivalents. Generate and share PDF reports, and maintain a history of past tests, all stored offline for data confidentiality.

Highlights
  • Complete or partial TVPS-4 tests
  • Raw score entry
  • Results visualization (age, percentile)
  • PDF report generation
  • Test history and search
  • 100% offline data storage
Features
Read full description

Key Features: - Complete or Partial Tests: Administer the TVPS-4 with flexibility, using a grid that complies with ATP standards for an accurate and reliable evaluation. You can also pause a test to resume it later. - Raw Score Entry: Enter the scores obtained during past evaluations without complication. - Results Visualization: Access a detailed analysis of scores, including raw score, corrected score, equivalent age, percentile, for a complete understanding of the evaluated visual perceptual abilities. - PDF Reports: Generate and instantly share interpretation reports, facilitating communication between professionals and with patients or their families. - Save and History: Keep a record of past tests for easy tracking and quick searching. Data storage is 100% offline in full respect of the confidentiality of health data. The TVPS Calc application is a tool for calculation and visualization support, TVPS Calc is not a diagnostic tool. It is intended to complement the use of official ATP® TVPS-4 resources and materials, and should be used by trained professionals.

Screenshots

TVPS Calc4 screens

Verdict

The call

The clearest difference is price: King at Free against TVPS Calc's $14.99. King also leads on iOS requirement (11.0 vs 13.0). TVPS Calc's advantage is update cadence (every 2 weeks vs every 19 months) and device support (3 vs 1). On 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

CostPrice · In-app purchases · Ads · Monetization

King is free to download; TVPS Calc costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

King ships an update every 19 months, TVPS Calc every 2 weeks. The most recent releases landed on October 7, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
King versus TVPS Calc: the parameters behind the verdict, then further details
ParameterKingTVPS Calc
PriceFree — better$14.99
Rating5.0 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 19 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPadiPhone, iPad, iPod — better
Requires iOS11.0 — better13.0
Further details — not scored
Size178 MB25 MB
Age rating4+17+
DeveloperKing-Devick Test, LLCDokitek

Customer experience

King

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

TVPS Calc

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

King

No in-app purchases

None

TVPS Calc

No in-app purchases

Questions

Is King free?
King is free to download, with no in-app purchases.
Is TVPS Calc free?
TVPS Calc costs $14.99, with no in-app purchases.
Do King or TVPS Calc have ads?
Neither King nor TVPS Calc shows ads.
Which is updated more often, King or TVPS Calc?
King ships an update every 19 months, and TVPS Calc every 2 weeks. Most recently, King was updated on October 7, 2026 and TVPS Calc on October 27, 2026.

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