# EyeTesterPro vs RZ

The clearest difference is price: RZ at Free against EyeTesterPro's $40.99. RZ also leads on update cadence (every 3 months vs every 37 months) and iOS requirement (8.0 vs 10.0). On ads, in-app purchases and device support there is nothing between them.

RZ is free to download; EyeTesterPro costs $40.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EyeTesterPro ships an update every 37 months, RZ every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | EyeTesterPro | RZ |
| --- | --- | --- |
| Price | $40.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/rz-wd6/id1439409560/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 44 MB |
| Requires iOS | 10.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [FUSO PRECISION](https://appshunter.io/developer/382022791) | [Hunan RamZed Medical Imaging Technology Co., Ltd](https://appshunter.io/developer/1394372494) |

## What reviewers say

### EyeTesterPro

[App page](https://appshunter.io/ios/app/eyetesterpro/id426303650)

Perform eye tests using your iPhone or iPad. Features single-device testing with adjustable charts and a two-device 'Connect mode' for remote operation. Ideal for quick vision checks at home.

**Highlights:** Single device eye testing, Two-device 'Connect mode' via Bluetooth, Adjustable eye chart distance (1-5 meters), Adjustable eye chart size, Remote control and display modes, Randomized chart angle adjustment

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

**In-app purchases:** none


### RZ

[App page](https://appshunter.io/ios/app/rz-wd6/id1439409560)

This medical imaging app connects wirelessly to a handheld ultrasound system, allowing users to control imaging parameters and modes in real-time. It offers a user-friendly interface for easy operation on iOS devices.

**Highlights:** Real-time imaging, Wireless network connection, Parameter control, Mode switching, Touch and gesture operation, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EyeTesterPro free?

EyeTesterPro costs $40.99, with no in-app purchases.

### Is RZ free?

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

### Do EyeTesterPro or RZ have ads?

Neither EyeTesterPro nor RZ shows ads.

### Which is updated more often, EyeTesterPro or RZ?

EyeTesterPro ships an update every 37 months, and RZ every 3 months. Most recently, EyeTesterPro was updated on November 1, 2026 and RZ on November 2, 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.*