# Dyop Controller vs Color Vision Tests

The clearest difference is price: Dyop Controller at Free against Color Vision Tests's $1.99. Dyop Controller also leads on iOS requirement (13.0 vs 17.2). Color Vision Tests's advantage is update cadence (every 2 days vs every 16 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Dyop Controller is free to download; Color Vision Tests costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Dyop Controller against 5.0 for Color Vision Tests. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Dyop Controller ships an update every 16 months, Color Vision Tests every 2 days. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Dyop Controller | Color Vision Tests |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/dyop-controller/id1314361464/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/color-vision-tests/id6478447485/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 days** |
| Monetization | **Free** | Paid |
| Size | 2 MB | 11 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shemesh Health Solutions PTY Ltd](https://appshunter.io/developer/578849338) | [My Call Bag LLC](https://appshunter.io/developer/1243282862) |

## What reviewers say

### Dyop Controller

[App page](https://appshunter.io/ios/app/dyop-controller/id1314361464)

This application acts as a remote control for a vision testing application on an iPad. It enables users to manage the entire vision test, including audio feedback, from a distance.

**Highlights:** Remote control for vision test, Adjust audio feedback, Control full test remotely, Connects to iPad app, Distance control

**Features:** macOS Compatibility

**In-app purchases:** none


### Color Vision Tests

[App page](https://appshunter.io/ios/app/color-vision-tests/id6478447485)

Explore your color perception with a suite of comprehensive tests, including Ishihara and Cambridge. Track your progress over time with an intuitive interface, designed for iOS users curious about their color vision.

**Highlights:** Ishihara color vision test, Cambridge color vision test, Pediatric color vision tests, Progress tracking, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dyop Controller free?

Dyop Controller is free to download, with no in-app purchases.

### Is Color Vision Tests free?

Color Vision Tests costs $1.99, with no in-app purchases.

### Which has better reviews, Dyop Controller or Color Vision Tests?

Dyop Controller and Color Vision Tests are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Dyop Controller or Color Vision Tests have ads?

Neither Dyop Controller nor Color Vision Tests shows ads.

### Which is updated more often, Dyop Controller or Color Vision Tests?

Dyop Controller ships an update every 16 months, and Color Vision Tests every 2 days. Most recently, Dyop Controller was updated on October 3, 2026 and Color Vision Tests on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*