Comparison

Chromatic Vision Simulator vs Occluder

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

Head to head
About

Chromatic Vision Simulator

Simulate various types of color vision deficiencies in real-time using your device's camera or photos. Understand how individuals with protanopia, deuteranopia, or tritanopia perceive the world by visualizing color differences.

Highlights
  • Simulates color vision deficiencies
  • Real-time camera simulation
  • Photo simulation
  • Supports protanope/protanomal
  • Supports deuteranope/deuteranomal
  • Supports tritanope/tritanomal
Features
Read full description

“Chromatic Vision Simulator” is a color vision simulation tool which simulates the color vision of color vision deficiencies. This software is developed by Kazunori Asada (Ph.D. medical science and Ph.D. media design), based on the research in color science. About 5% of men have difficulty distinguishing red and green, or recognizing dark red. Such color deficiency can be classified into three major categories: protanope / Protanomal, Deuteranope / Deuteranomal and Tritanope / Tritanomal. Color deficiencies are the inability to tell differences between some colors other people can easily distinguish. People with different types of color vision deficiency perceive colors differently. For example, individuals diagnosed as Protan or Deutan cannot perceive differences between red and green, and pink and cyan. These color visions are predictable by calculating working of the cone cells that perceives the color to some degree. "Chromatic Vision Simulator" makes simulated images of each color vision type from built-in Camera or Photos and shows you how people with specific types of color vision sees the world in real-time.

About

Occluder

Features
Read full description

***** INTRODUCTORY PRICE ***** The perfect app to practice and learn about oculomotor pathologies. A useful tool to practice diagnosis of ocular pathologies related to external eye muscles with the Cover Test. You can simulate an specific Phoria or Tropia. Test yourself with Occluder! You can practice Cover/Uncover test with the following pathologies: 1. Near and distant phorias 2. Near and distant tropias We will soon include more pathologies To become our tester send a mail to occluderapp@gmail.com

Screenshots

Chromatic Vision Simulator4 screens
Occluder1 screens

Verdict

The call

The clearest difference is price: Chromatic Vision Simulator at Free against Occluder's $0.99. Chromatic Vision Simulator also leads on update cadence (every 11 months vs every 51 months). On ads, in-app purchases, device support and iOS requirement 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

Chromatic Vision Simulator is free to download; Occluder costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Chromatic Vision Simulator ships an update every 11 months, Occluder every 51 months. The most recent releases landed on September 15, 2026 and May 16, 2026 respectively.

Scorecard2 real differences · 8 level
Chromatic Vision Simulator versus Occluder: the parameters behind the verdict, then further details
ParameterChromatic Vision SimulatorOccluder
PriceFree — better$0.99
Rating4.4 (58 ratings) — better—
Positive reviews84.9% of reviews—
Number of ratings58 — better—
Update frequencyEvery 11 months — betterEvery 51 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.0 — better15.6
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperKazunori AsadaIvan Cabezon Orjales

In-app purchases

None

Chromatic Vision Simulator

No in-app purchases

None

Occluder

No in-app purchases

Questions

Is Chromatic Vision Simulator free?
Chromatic Vision Simulator is free to download, with no in-app purchases.
Is Occluder free?
Occluder costs $0.99, with no in-app purchases.
Do Chromatic Vision Simulator or Occluder have ads?
Neither Chromatic Vision Simulator nor Occluder shows ads.
Which is updated more often, Chromatic Vision Simulator or Occluder?
Chromatic Vision Simulator ships an update every 11 months, and Occluder every 51 months. Most recently, Chromatic Vision Simulator was updated on September 15, 2026 and Occluder on May 16, 2026.

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