# Snellen test vs EMT MDS Maker+

The clearest difference is price: EMT MDS Maker+ at Free against Snellen test's $0.99. EMT MDS Maker+ also leads on update cadence (monthly vs every 4 months). Snellen test's advantage is chart position (#197 vs unranked) and iOS requirement (13.2 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

EMT MDS Maker+ is free to download; Snellen test costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Snellen test ships an update every 4 months, EMT MDS Maker+ monthly. Both last shipped on October 15, 2026.

## The numbers

| Metric | Snellen test | EMT MDS Maker+ |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Paid | — |
| Best chart rank | **#197** | — |
| Size | 3 MB | 9 MB |
| Requires iOS | **13.2** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Oleg Drobyshev](https://appshunter.io/developer/607614659) | [J-SPEED KENKYUKAI, GENERAL INC. ASSOCIATION](https://appshunter.io/developer/1790362482) |

## What reviewers say

### Snellen test

[App page](https://appshunter.io/ios/app/snellen-test/id1514134289)

**Currently charting:** #197 Top Paid · Medical (US App Store)

This app uses augmented reality to display a Snellen eye chart for visual acuity testing. It allows users to adjust the chart's size and position from a distance, simulating a professional eye exam. Ideal for quick vision checks at home.

**Highlights:** Augmented reality Snellen chart, Adjustable chart size and position, Remote control via device camera, Distance simulation for testing, Customizable display options

**Features:** macOS Compatibility

**In-app purchases:** none


### EMT MDS Maker+

[App page](https://appshunter.io/ios/app/emt-mds-maker-plus/id6740513487)

**In-app purchases:** none


## Frequently asked questions

### Is Snellen test free?

Snellen test costs $0.99, with no in-app purchases.

### Is EMT MDS Maker+ free?

EMT MDS Maker+ is free to download, with no in-app purchases.

### Do Snellen test or EMT MDS Maker+ have ads?

Neither Snellen test nor EMT MDS Maker+ shows ads.

### Which is updated more often, Snellen test or EMT MDS Maker+?

Snellen test ships an update every 4 months, and EMT MDS Maker+ monthly. Most recently, Snellen test was updated on October 15, 2026 and EMT MDS Maker+ on October 15, 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.*