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Peek Acuity

Peek Acuity is a smartphone-based vision check app developed by eye experts to allow anyone to check visual acuity using only an Android smartphone.

Peek Acuity helps screen and identify people who need further examination.  It is not intended to replace detailed examinations from a qualified eye health professional.

Peek Acuity is a standalone app, which only provides a measure of visual acuity and a visual representation of the result. The full version of Peek Solutions with support, data analysis, SMS reminder functionality and other features is currently only available to Peek partners. 

This document explains the use and limitations of Peek Acuity for eye health practitioners who are exploring ways to assess vision remotely. 

  • Proven to be as accurate as conventional vision tests in peer-reviewed research
  • Fast and easy to use with step-by-step tutorial
  • Accurate and repeatable results
  • Creates a visual representation of results for easy explanation to patients
  • Includes simulated representation that helps explain results to patients
  • Includes equivalents of “count fingers”, “hand movement” and “light perception”
  • Does NOT collect any personally identifiable data
  • Scores are provided in standard units of Snellen - including metric (6/6) and imperial (20/20) - and LogMAR (0.0)

Features and benefits

There are two versions of Peek Acuity available to download FREE from the Google Play store:


       Peek Acuity Pro is a CE registered class 1 medical device available in countries where it is registered for use.


   Peek Acuity is not registered for medical use, and is available globally.


It is important to keep the application up to date at all times so that you receive the latest technical updates. Older versions of the app may not function correctly on the latest operating systems.

Please ensure you perform the manual calibration check, as described here, before using the application to measure visual acuity.

How to use Peek Acuity: a two minute tutorial

Watch Video

It's a wonderful app needed by both people and health workers for early detection of visual impairment.

A teacher checks a child's vision using the Peek Acuity app
Frequently asked questions Find out more

“When you meet people and you can solve their problem, it’s a great feeling - it is not just my joy, but the joy of the patient. And when you share their joy then that is double joy.”

Dr Hillary Rono

Ophthalmologist and Peek Kenya Country Manager