# OdySight vs WHOeyes

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.

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

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.

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.

## The numbers

| Metric | OdySight | WHOeyes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/odysight/id1375477602/reviews)** | [1.7 (3 ratings)](https://appshunter.io/ios/app/whoeyes/id6463576815/reviews) |
| Number of ratings | **6** | 3 |
| Positive reviews | 48.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 551 MB | 18 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Tilak Healthcare](https://appshunter.io/developer/1250896788) | [World Health Organization](https://appshunter.io/developer/1462736279) |

## What reviewers say

### OdySight

[App page](https://appshunter.io/ios/app/odysight/id1375477602)

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:** Vision Pro support

**In-app purchases:** none


### WHOeyes

[App page](https://appshunter.io/ios/app/whoeyes/id6463576815)

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

**In-app purchases:** none


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*