# endlink® Secure Messenger vs Color Vision Tests

The clearest difference is price: endlink® Secure Messenger at Free against Color Vision Tests's $1.99. endlink® Secure Messenger also leads on ratings volume (5 vs 1) and iOS requirement (15.1 vs 17.2). Color Vision Tests's advantage is update cadence (every 2 days vs fortnightly) and chart position (#199 vs unranked). On rating, ads, in-app purchases and device support there is nothing between them.

endlink® Secure Messenger 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 endlink® Secure Messenger against 5.0 for Color Vision Tests. That said, the two scores are not equally well evidenced: endlink® Secure Messenger has 5 ratings behind it against 1, so its average is the more settled of the two.

endlink® Secure Messenger ships an update fortnightly, Color Vision Tests every 2 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | endlink® Secure Messenger | Color Vision Tests |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/endlink-secure-messenger/id1510570703/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/color-vision-tests/id6478447485/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#199** |
| Size | 113 MB | 11 MB |
| Requires iOS | **15.1** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Endlink](https://appshunter.io/developer/1448175957) | [My Call Bag LLC](https://appshunter.io/developer/1243282862) |

## What reviewers say

### endlink® Secure Messenger

[App page](https://appshunter.io/ios/app/endlink-secure-messenger/id1510570703)

This secure messaging app provides HIPAA-compliant communication for organizations, especially in healthcare. It offers AI-assisted message features, easy onboarding, and robust security to protect sensitive information.

**Highlights:** AI-assisted message generation, replies, and editing, HIPAA security and privacy standards, Easy self-onboarding, Message and media transmission, Message prioritization and categorization, Message-to-task conversion, Mass communication and group sorting, On-call scheduling with notifications

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

**In-app purchases:** none


### Color Vision Tests

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

**Currently charting:** #199 Top Paid · Medical (US App Store)

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 endlink® Secure Messenger free?

endlink® Secure Messenger 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, endlink® Secure Messenger or Color Vision Tests?

endlink® Secure Messenger and Color Vision Tests are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do endlink® Secure Messenger or Color Vision Tests have ads?

Neither endlink® Secure Messenger nor Color Vision Tests shows ads.

### Which is updated more often, endlink® Secure Messenger or Color Vision Tests?

endlink® Secure Messenger ships an update fortnightly, and Color Vision Tests every 2 days. Most recently, endlink® Secure Messenger was updated on October 24, 2026 and Color Vision Tests on October 27, 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.*