WHOeyes vs hamburgergame2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Distance vision test
- Near vision test
- Simulates eye chart
- Suitable for ages 8+
- Free to use
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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.
hamburgergame2
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Stack the Hamburger is a fun, fast, and engaging memory-building game designed to support cognitive skills in people of all ages — especially seniors and individuals experiencing memory decline. Inspired by Cognitive Stimulation Therapy (CST), the game uses visual recognition, sequencing, and repetition to help strengthen attention, recall, and working memory in a playful and stress-free way. Players begin each round by memorizing the correct order of hamburger ingredients. Once the ingredients disappear, the challenge begins: choose each item in the correct sequence to rebuild the hamburger exactly as shown. With simple controls and clear visuals, Stack the Hamburger is easy to learn but rewarding to master. Gameplay gradually becomes more fun and challenging as more ingredients are added. Each round encourages focus, pattern recognition, and short-term memory — all within a positive and colorful environment that motivates players to keep improving. Stack the Hamburger is carefully designed for accessibility. The visuals are large and easy to see, the interactions are simple and intuitive, and rounds are short, making the game perfect for seniors, families, therapy sessions, or casual play. Whether you're using it as a cognitive exercise tool or just want a uniquely fun game experience, Stack the Hamburger provides a delightful and meaningful way to keep the mind active. Features • Cognitive memory game inspired by CST • Simple and intuitive gameplay for all ages • Clear visuals designed for accessibility • Increasing difficulty that adapts to the player • Encourages focus, recall, and sequencing skills • Fun game environment with no pressure Keep your mind active, build stronger memory skills, and enjoy a charming game experience — one hamburger at a time!
Screenshots
Verdict
The clearest difference is iOS requirement: WHOeyes at 15.6 against hamburgergame2's 18.5. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | WHOeyes | hamburgergame2 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 18.5 |
| Further details — not scored | ||
| Size | 18 MB | 16 MB |
| Age rating | 12+ | 4+ |
| Developer | World Health Organization | Sujin Lee |
In-app purchases
WHOeyes
No in-app purchases
hamburgergame2
No in-app purchases







