Comparison

OdySight vs WHOeyes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OdySight

This app allows users to monitor their vision daily between ophthalmologist visits. It provides vision tests with results sent to your doctor for remote monitoring of chronic retinal diseases. Enjoy puzzles after completing tests to encourage consistent monitoring.

Highlights
  • Daily vision monitoring
  • Remote doctor reporting
  • Chronic retinal disease tracking
  • Vision test results
  • Interactive puzzles
  • Medical device authorization
Features
Read full description

Welcome to OdySight, the mobile application that helps you monitor your vision on a daily basis between visits to your ophthalmologist. Available by prescription, OdySight is a simple, reliable, and fun app that offers vision tests, with results automatically sent to your doctor so they can monitor your vision remotely. Primarily indicated for monitoring chronic retinal diseases such as AMD or macular edema, OdySight informs you in the event of changes in vision, facilitating more agile and personalized management. But that's not all: OdySight makes your experience enjoyable by giving you access to hundreds of puzzles once you've completed your tests. Developed by video game experts, they will take you on a journey and help you to adopt good monitoring habits on a daily basis. Over 20,000 people have already chosen OdySight in France! If you have a problem or a question, our support team is here to help! Visit Odysight.app/patient/faq/ or contact us by email at supportUS@odysight.app Important note: • OdySight is available only by medical prescription for monitoring near visual acuity and symptoms such as metamorphopsia and scotomas. To get access, contact your ophthalmologist. • OdySight does not provide any interpretation of your test results or any treatment recommendations. The app is not intended to provide a diagnosis, which remains the responsibility of your doctor. • This app does not replace appointments with your ophthalmologist. If you notice any change in your vision, go immediately to the nearest medical center for an eye examination. • This application is authorized to be marketed as a medical device in the European Union and the United States. This application is not authorized for marketing as a medical device for the above functionalities in other countries or jurisdictions. This Class I medical device is a regulated healthcare product bearing the CE mark under Directive 93/42/EEC.

About

WHOeyes

This application offers a free vision screening tool to help identify potential vision impairments. It simulates standard eye chart tests for both distance and near vision, suitable for users aged 8 and above. Regular use can aid in early detection, encouraging timely professional eye care.

Highlights
  • Distance vision test
  • Near vision test
  • Simulates eye chart
  • Suitable for ages 8+
  • Free to use
Read full description

Many people with vision loss are unaware of it. Regular vision checks can ensure that vision impairment is identified at the earliest so that you can take action to continue enjoying your sight. WHOeyes is a free mobile application that tests distance and near visual acuity and is suitable for anyone aged over 8 years. The principle of WHOeyes is based on how an eye care professional would test your vision using a conventional chart in a clinical setting. The accuracy of WHOeyes was tested in two research studies. The app does not replace the need for regular eye checks by an eye care professional, even if your vision is good. WHO and the developers of the app cannot be held responsible or liable for any incorrect results. WHOeyes is compatible with iPhone 8 and above. To find out more about eye care and access related resources, visit the webpage at: https://www.who.int/health-topics/blindness-and-vision-loss.

Screenshots

OdySight4 screens
WHOeyes4 screens

Verdict

The call

The clearest difference is rating: OdySight at 4.2 against WHOeyes's 1.7. OdySight also leads on update cadence (every 2 months vs every 6 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OdySight holds the better App Store score, 4.2 against 1.7. Both are backed by a comparable volume of ratings — 6 and 3 respectively.

UpkeepUpdate frequency

OdySight ships an update every 2 months, WHOeyes every 6 months. The most recent releases landed on October 17, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 8 level
OdySight versus WHOeyes: the parameters behind the verdict, then further details
ParameterOdySightWHOeyes
PriceFreeFree
Rating4.2 (6 ratings) — better1.7 (3 ratings)
Positive reviews48.4% of reviews—
Number of ratings6 — better3
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size551 MB18 MB
Age rating17+12+
DeveloperTilak HealthcareWorld Health Organization

Customer experience

OdySight

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews31 reviews
Positive48.4%
Neutral6.5%
Negative45.2%

WHOeyes

All ratings3 ratings
Positive0.0%
Neutral33.3%
Negative66.7%

In-app purchases

None

OdySight

No in-app purchases

None

WHOeyes

No in-app purchases

Questions

Is OdySight free?
OdySight is free to download, with no in-app purchases.
Is WHOeyes free?
WHOeyes is free to download, with no in-app purchases.
Which has better reviews, OdySight or WHOeyes?
OdySight is rated higher. OdySight averages 4.2 out of 5 from 6 ratings, while WHOeyes averages 1.7 from 3 ratings.
Do OdySight or WHOeyes have ads?
Neither OdySight nor WHOeyes shows ads.
Which is updated more often, OdySight or WHOeyes?
OdySight ships an update every 2 months, and WHOeyes every 6 months. Most recently, OdySight was updated on October 17, 2026 and WHOeyes on September 28, 2026.

Other comparisons