Snellen Chart

3.2.4

João Meneses

4.03

364 reviews

100,000+
Downloads

Free

Snellen Chart, Acuity Test (Vision)

Pros & Cons

Focused, single-chart acuity testing ideal for quick checks
Intuitive swipe-based navigation and modern UI
Adaptive to different screen sizes, resolutions, and distances
Free to use and accessible on-device
Designed for both general users and eye-care professionals
Concise, purpose-built feature set that minimizes setup

Lacks the broader branding terms (e.g., eye/vision) and ecosystem features used by some competitors
No explicit professional-grade feature expansion beyond the Snellen chart (limited breadth)
Narrow scope to a single acuity test may limit appeal for users seeking multiple vision tests

About Snellen Chart

Snellen Chart is a medical app developed by João Meneses.

Download Statistics

Snellen Chart has been downloaded 150 thousand times. In the last 30 days, the app was downloaded 1 thousand times.

User Ratings

Snellen Chart is rated 4.03 out of 5 stars. The rating is based on 360 ratings.

App Information

Snellen Chart is FREE to download. The APK download size is 7.01 MB. The latest version available is 3.2.4. The last update was on July 25, 2025.

Technical Requirements

Snellen Chart requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play June 2016.

Description

This mHealth application intent is to provide and empower mobile regular users and health professionals with the tool with which they can estimate their or others visual acuity, based on a classical Snellen Chart Test. This App is innovative because it transforms an old style poster test design in a new, modern, intuitive, ubiquitous test. One App with a simple user interface, and an intuitive navigation chart using swipe gestures to navigate from optotype to optotype, and with the capability to adapt the Snellen Chart Test to different screen sizes, screen resolutions and user distances.

Recent changes:
Targeting Android SDK 36.

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More data about Snellen Chart

Price	Free to download
Total downloads	150 thousand
Recent downloads	1 thousand
Rating	4.03 based on 360 ratings
Ranking	Not ranked
Version	3.2.4
APK size	7.00 MB
Number of libraries	2
Designed for Android	4.4+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Alternative downloads for the Snellen Chart app

Snellen Chart compared with similar apps

Common keywords of similar apps

Intuitive User Optotype Chart Test Snellen Acuity App Screen

Keywords missing from this app

Eye Visual Vision Charts Device Tests Care Testing Features Check Myopia Touch Designed Settings Support Health Recent Distance Early Replace Tool Scores Eyes Simple Information Exercises Easy Professional Medical Devices Diagnosis Full Home Doctor Comprehensive Astigmatism Data Tools Quick Free Time Children Tumbling Logmar

Google Play Rating history and histogram

230

Downloads over time

Snellen Chart has been downloaded 150 thousand times. Over the past 30 days, it averaged 33 downloads per day.

Changelog of Snellen Chart

Show changelog

Developer information for João Meneses

João Meneses

jpameneses@gmail.com

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Comments on Snellen Chart for Android

★★★★★ Carmen Alvarez · Jan 19, 2020

Wow! This is exactly what I was looking for. I compared the letters to a printed Snellen chart, and they are the same size. One little feature request: an audio/keyboard command to read (tts) the current letters, to verify what I've read (or thought I've read) with my eyes. Also, could you add the Monomer chart letters? Anyway, thanks for this app! Update: actually the feature to make the text bigger with space/enter is even better than audio. I am using a Bluetooth keyboard and use the arrow keys to navigate the different levels. But I didn’t seem to get the letters to appear bigger with space and/or enter 🤔 Tried other combinations too. It’s a Mac keyboard for info.

★★★★★ Ahmad Mohammed · Sep 16, 2024

For someone who has been suffering from low visual acuity all his life, this app still my best way to keep track of my visual acuity through the years. Great Job.

★★★★★ Kaiss Tahery · Sep 17, 2019

If you are an op tom looking for some accurate charts this is definitely the app

★☆☆☆☆ Norman Schopenhauer · May 14, 2024

Last version is awful please roll back to previous version or make available previous version. Not useful to me at all. Looking for alternatives

★☆☆☆☆ Lutfi Maulana · May 18, 2024

Still can't measure at 6/6 metric unit, even if I changed it, it will always revert to 20/125, kinda frustrating when using it

★☆☆☆☆ G Spence (Chaion) · Apr 28, 2024

This app has been excellent for helping with portable VA in tricky areas, until the latest update which has broken it entirely. Attempting to configure it with settings means non-stop crashes.

★☆☆☆☆ Paul van der Kolf · Jun 21, 2024

Use to work fantastically. Now I can't switch to Metric system, user interface became less user-friendly, color choice in menu makes everything unclear when making choices. App worked fine before, now it's a massive pain to use. Going to have to search for another Snellen Chart app.

Google Play Rankings for Snellen Chart

This app is not ranked

Technologies used by Snellen Chart

Snellen Chart is requesting 1 permissions and is using 2 libraries.
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