# eyeSnellen

> Accurate visual acuity test using Snellen chart on iPad, with iPhone/iPod remote control. (iPhone/iPad app by Steve Colley.)

- Source: https://appshunter.io/ios/app/eyesnellen/id575171210 (this page in markdown: same URL + `.md`)
- Developer: [Steve Colley](https://appshunter.io/developer/442408292)
- Category: Medical, Health & Fitness
- Price: Free with in-app purchases
- Rating: 3.00/5 from 4 App Store ratings · 26 written reviews indexed
- Age rating: 12+
- Requires: iOS 8.1 · 16 MB
- Languages: American English
- Released: 2012-12-21
- Data updated: 2026-08-02
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/eyesnellen/id575171210/reviews.md

## What is eyeSnellen?

The MOST accurate visual acuity test on the iPad (or iPad mini).

A built-in auto-calibration function on the iPhone/iPod will adjust the size of the Snellen Chart (and brightness) to produce accurate and reproducible results.

The iPad chart is fully functional, but the best way to use the app is with the iPhone/iPod remote (this requires an in-app purchase for full functionality).

An auto-dim function is set to time the screen out at 2 minute to prevent the iPad battery from being depleted (this is now user adjustable).

Tested with all iPad versions (maximal chart distance 7.4m/24ft), and with the iPad mini (maximal chart distance 6m/20ft). Tested with all current iPods with a built-in camera and iPhones except the iPhone 3.

The app has been tested by Ophthalmologists, feedback is encouraged.

## Key features

- Snellen chart visual acuity test
- Auto-calibration for accuracy
- iPhone/iPod remote control
- Adjustable screen timeout
- Tested on various iPad and iPhone models

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| eyeSnellen Pro | $9.99 | one-time |


## Recent user reviews (10 of 26)

All indexed reviews: https://appshunter.io/ios/app/eyesnellen/id575171210/reviews.md

### 1/5 — Appalling

*2025-11-02*

It is a dreadful App, download if you want to be frustrated.

### 3/5 — Útil cuando quiere

*2019-09-09, version 1.8*

Si es buena pero es muy frecuente que se cierre la aplicación, o baja el brillo de la pantalla, y nunca e podido sincronizarla, ocupa una actualización y corrección de los errores.

### 2/5 — Does not support calibration with iPhone7

*2019-04-03, version 1.8*

I purchased this eyeSnellen app recently. Disappointed because there’re is no way to adjust the settings for iPad mini and iPad Pro. The calibration option that comes with the iPhone remote does not work (iPhone 7).

### 4/5 — Génial mais...

*2019-03-05, version 1.8*

Des problèmes de connexion iPhone/iPad, mais je recommande quand même

### 2/5 — NO LA COMPREN

*2018-12-25, version 1.8*

No se cincroniZa y cuando lo hace tienes que hacer más de 10 intentos si vas a realizar un examen tienes que tener mucha paciencia para que jaleneata cosa ni aún que pagues la aplicación

### 5/5 — Perfect!!

*2017-11-17*

Love this!! Am a domiciliary optometrist and this is my go to test chart. Works perfectly with the iPhone as a remote 👌

### 4/5 — Great app

*2017-05-18, version 1.8*

Im optometrist and i found this app is really great, both the flow how it runs and functions, just some minor things need to be changed to be come core app for those practicians like me:

### 3/5 — Interessante

*2017-02-08*

Gostei...mas é bom ter uma rede Wi-Fi. Seria bom ter o optotipo 20/400 também.

### 1/5 — Would give 0 stars if possible

*2016-10-02*

Doesn't work, crashes, freezes, rarely allows remote to connect. 

Because the remote function is so glitchy if you are trying to test yourself this means you end up seeing the lines setting it up / trying to fix it; before you get to reading distance.

Waste of money, really unhappy with it.

### 1/5 — Remote no longer working

*2016-09-27*

Was working wonderful to screen vision during mass screening students by school nurses. But the remote will no longer connect after the upgrade to iOS 10.

## Frequently asked questions about eyeSnellen

### What is eyeSnellen used for?

eyeSnellen is used to perform a visual acuity test using a Snellen chart on your iPad. It helps measure how clearly you can see at various distances.

### Can eyeSnellen be controlled remotely?

Yes, eyeSnellen offers full functionality with an iPhone or iPod touch as a remote control, which requires an in-app purchase for this feature.

### What devices are compatible with eyeSnellen?

The app is compatible with iPhones (except iPhone 3), iPads, and iPods with a built-in camera. It has been tested on all iPad versions and iPad mini.

### How accurate is eyeSnellen?

The app claims to be the MOST accurate visual acuity test on the iPad, with a built-in auto-calibration function to ensure reproducible results.

### Is eyeSnellen free to use?

The base eyeSnellen app is free to download and use. However, certain enhanced functionalities, like the iPhone/iPod remote control, require an in-app purchase.

### What is the age rating for eyeSnellen?

eyeSnellen has an age rating of 12+, indicating it is suitable for users aged 12 and above.

### How often is eyeSnellen updated?

The latest version of eyeSnellen is 1.8, which was last updated on May 7, 2015. The app has not received updates since then.

### What is the user rating for eyeSnellen?

eyeSnellen has a rating of 3.0 stars based on 4 user ratings. This indicates a mixed reception from its limited user base.

## Version history (last 5 releases)

### 1.8 — 2015-05-07

This update from Apple will improve the functionality of this app. No new features are included.

Updated to ios8. The option to toggle 6/5 Snellen line added.
Auto-calibration of some of the newer devices may not be accurate - feedback to fine tune this is appreciated.

### 1.7 — 2014-08-03

Snellen decimal notation added.
A few interface bugs on ios7 fixed.

### 1.6.1 — 2014-05-25

The clown animated gif has been replaced due to a copyright issue. For people who want to continue to use this image for patient fixation please see the Vision Toolbox app.

### 1.6 — 2013-12-21

Another feature request. More stable multiple eye chart setup.
A preference pane setting on the remote (iPhone/iPod) locks it to a certain iPad. Each iPad will need a unique name for best results.
Tested on a cluster of 3 iPhones and 3 iPads.
Feedback welcome.

### 1.5.1 — 2013-12-12

Fixed a bug that prevents iPad working in remote mode (sorry!). The iPad can be set to remote mode in the preference pane of the Settings app.

## Apps similar to eyeSnellen

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Ophthalmology & Optometry](https://appshunter.io/ios/app/ophthalmology-and-optometry/id6471442410) | 4.7 (117) | Free | Medical |
| [醒目视力表](https://appshunter.io/ios/app/id1442509969) | 3.5 (29) | $4.99 | Medical |
| [Eye Chart Pro](https://appshunter.io/ios/app/eye-chart-pro/id364802332) | 4.0 (2) | Free | Medical |
| [Chart2020 Lite](https://appshunter.io/ios/app/chart2020-lite/id1364522406) | 1.0 (1) | Free | Medical |
| [Eye Chart Pro Remote Control](https://appshunter.io/ios/app/eye-chart-pro-remote-control/id448853455) | 3.0 (5) | Free | Medical |
| [Control LITE](https://appshunter.io/ios/app/control-lite/id1361955533) | — | Free | Medical |

## More apps by Steve Colley

- [EyeToric](https://appshunter.io/ios/app/eyetoric/id442408289)

All apps by Steve Colley: https://appshunter.io/developer/442408292

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-02.*