OptoCharts - All eye tests app icon

OptoCharts - All eye tests

The most comprehensive app for all eye tests; visual acuity & more.

Shadi AboelNaga · com.shadinaga.OptoCharts

Not rated yet 10K+ downloads v6.0 17.8 MB Android 5.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v6.0 (40)
Updated
Jun 19, 2026 (4 months ago)
APK size
17.8 MB
Requires
Android 5.0+ (API 21)
CPU support
Any (no native code)
Category
Medical (app)
Listed since
Mar 19, 2021 (at least)
Permissions
17 (5 sensitive)
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

OptoCharts - All eye tests is an app by Shadi AboelNaga in the Medical category, listed since at least March 2021. It has no native code, so it runs on any Android processor.

It asks for 17 permissions, 5 of them sensitive, including precise location, approximate location and read shared storage. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v6.0

Improved faster optotype drawing processor New tests in versions 5.0+: * Cobalt blue screen * Arabic & Hindi alphabet letters charts. * Fan & Block astigmatism * Schober test and Vertical/Horizontal alignment for measuring squint angle. All include fixed charts & automated tests to measure the angle accurately. * For babies: Preferential looking test & LEA grating visual acuity.

Description

From the listing uploaded by “appupdater”.

Introducing the world first android professional app for all eye tests. For eye care specialists, convert your smart phone or tablet or a LED screen to a 4,000$ worth visual acuity examination device. Use it in your clinic, home visits or anywhere you like. Easy to set for screen mirroring on a LED screen or direct installment on your smart TV for bigger view at your clinic. Use another smart phone as a smart remote controller for the tablet or smart TV you use as a projector. The chart size is calibrated at any distance or screen size. It's calculated dynamically with the accurate optical equation along with the related medical aspects to introduce to you the most accurate optometry chart on an android device. You get some vision charts (including Landlot-C chart) and other tests (including color vision plates) completely for free for lifetime. And you can purchase a Pro licence inside the app to have all these charts in one place: * Landlot-C chart. * Landlot-C chart without the oblique (45°) angles. * Tumbling E chart. * Alphabetic chart. * Numbers chart. * Pediatric chart. * Illiterate chart. * Customized regional alphabet charts. & Crowding effect/phenomenon applied to any chart. & Units: Metric (6/6), Feet (20/20), Decimal (1.0) and LogMAR. & Modes: Complete rows & columns, one row, one column, single sign. * Duo-chrome test. * Red/Green filter applied to any chart to make a custom Duochrome test. * Worth 4 dot test. * Schober test * Amsler grid with 4 different color/background combinations. * Color vision test (Ishihara charts). * Contrast sensitivity test applied to any chart with the selected visual acuity size. Units: CS log & percentage. * Optokinetic drum with the ability to change speed or width. * Cross-Cylinder test chart. * Astigmatism clock. * Fixation target. * Fixation dot. * Children fixation targets. * Cross Grid. * Videos gallery & in-app player for playing patient education or children fixation videos. & In-app images gallery with enhanced image viewer. The app behavior is fully customized according to your practice including default chart, default acuity row, default row step (0.1 Decimal or 0.1 LogMar), default signs (optotypes) distribution over the test area, default spacing between the optotypes, etc... All these features are available for a trial period enough to try them in your daily practice for days after which you'll have to either purchase the full licence with a relatively small fee or continue using the app with limited features. And it won't get better without your feedback. So, you're welcome to send us your feedback, suggestions, bugs reports.

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Jun 19, 2026.
  • Certificate issued to “Shadi Naga Projects” This is the certificate of the Google Play version.

Store checks and file details

  • Developer signature verified Jun 19, 2026
  • Validated against Google Play Jun 19, 2026
  • Signed byCN=Shadi AboelNaga, OU=Android apps, O=Shadi Naga Projects, L=Alexandria, ST=Alexandria Governorate, C=eg
  • Signing certificate (SHA-1)8F:DE:31:73:64:D4:58:D9:80:8A:60:49:89:F0:81:3E:5A:3F:43:0F
  • File MD527ac2eaafd4c1caa3a014297d94b0739
  • Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (17)

OptoCharts - All eye tests requests 17 permissions, 5 of them sensitive.

Required hardware & features

OptoCharts - All eye tests APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is OptoCharts - All eye tests free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the OptoCharts - All eye tests APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 27ac2eaafd4c1caa3a014297d94b0739.

Tags

More Medical apps