# EyeTesterPro vs SDPhone

The clearest difference is price: SDPhone at Free against EyeTesterPro's $40.99. SDPhone also leads on update cadence (every 7 months vs every 37 months). EyeTesterPro's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 16.0). On ads and in-app purchases there is nothing between them.

SDPhone 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, SDPhone every 7 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | EyeTesterPro | SDPhone |
| --- | --- | --- |
| Price | $40.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 7 months** |
| Monetization | Paid | — |
| Size | 8 MB | 17 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FUSO PRECISION](https://appshunter.io/developer/382022791) | [住友電設株式会社](https://appshunter.io/developer/1477145875) |

## 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


### SDPhone

[App page](https://appshunter.io/ios/app/sdphone-i/id1477145930)

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

**In-app purchases:** none


## Frequently asked questions

### Is EyeTesterPro free?

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

### Is SDPhone free?

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

### Do EyeTesterPro or SDPhone have ads?

Neither EyeTesterPro nor SDPhone shows ads.

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

EyeTesterPro ships an update every 37 months, and SDPhone every 7 months. Most recently, EyeTesterPro was updated on November 1, 2026 and SDPhone on November 7, 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.*