# Eye Chart HD vs Smart Optometry

The clearest difference is rating: Eye Chart HD at 5.0 against Smart Optometry's 4.4. Smart Optometry's advantage is ads (none vs shown) and ratings volume (529 vs 5). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. Eye Chart HD sells 2 in-app purchases, starting at $2.99 per month and Smart Optometry sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Eye Chart HD holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Smart Optometry has 529 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 34% of Eye Chart HD's written reviews are positive against 42% of Smart Optometry's, so the app with the better star average is not the one people write more warmly about.

Eye Chart HD ships an update every 6 months, Smart Optometry every 4 months. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Eye Chart HD | Smart Optometry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/eye-chart-hd/id382019572/reviews)** | [4.4 (529 ratings)](https://appshunter.io/ios/app/smart-optometry/id1053891266/reviews) |
| Number of ratings | 5 | **529** |
| Positive reviews | 34.5% of reviews | **42.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 31 MB | 28 MB |
| Requires iOS | **12.0** | 13 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Hundred Vision d.o.o.](https://appshunter.io/developer/1053891265) |

## What reviewers say

### Eye Chart HD

[App page](https://appshunter.io/ios/app/eye-chart-hd/id382019572)

This app provides a clinically evaluated visual acuity screening tool for various settings. It offers randomized Snellen, Tumbling E, and other charts to help assess vision, especially when traditional charts are unavailable or memorized. Additional features are available through a monthly subscription.

**Highlights:** Randomized Snellen charts, Tumbling E charts, Pocket vision screener, Line randomization, Chart selector, Near vision chart (subscription), Amsler Grid (subscription)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Subscription | $2.99 | per month |
| Eye Chart HD Full Version | $0.99 | one-time |


### Smart Optometry

[App page](https://appshunter.io/ios/app/smart-optometry/id1053891266)

This app offers eye care professionals a suite of 15 interactive and precise digital eye exams for patient screening and testing. It simplifies the examination process with clear guidelines, fast execution, and automated calculations, supporting a more efficient and accurate diagnostic workflow.

**Highlights:** 15 interactive digital eye exams, Automated calculation and diagnosis, Multi-language support, Vertex and visual acuity calculators, Simple and fast user interface, Precise and reliable results

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Monthly Subscription | $2.99 | per month |
| PRO Yearly Subscription | $22.99 | per year |
| Visual Acuity + Test | $1.99 | one-time |
| Red Desaturation Test | $1.99 | one-time |
| Generous Tip | $4.99 | one-time |
| Generous Tip! | $4.99 | one-time |
| Smart Optometry PRO | $9.99 | one-time |
| PRO Bundle | $9.99 | one-time |
| Massive Tip! | $9.99 | one-time |
| Amazing Tip! | $14.99 | one-time |

**What reviewers like**

- 👍 Excellent product
- 👍 Beautifully designed
- 👍 Highly accurate results
- 👍 Super easy to use
- 👍 Masterfully engineered

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App does not open
- 🐛 App stops working
- 🐛 Requires payment for tests
- 🐛 App is full of ads

**Reported bugs**

- App crashes on startup
- App closes automatically after login
- App stops working after update
- Tests demand payment for Pro version
- Visual acuity unit converter plus button not working

**Requested features**

- Update visual acuity unit converter plus button
- Add inches option for measurement
- Provide explanations for test procedures and expected results
- Make Arabic language available
- Allow calibration of acuity test for different distances


## Frequently asked questions

### Is Eye Chart HD free?

Eye Chart HD is free to download, with in-app purchases available.

### Is Smart Optometry free?

Smart Optometry is free to download, with in-app purchases available.

### Which has better reviews, Eye Chart HD or Smart Optometry?

Eye Chart HD is rated higher. Eye Chart HD averages 5.0 out of 5 from 5 ratings, while Smart Optometry averages 4.4 from 529 ratings.

### Do Eye Chart HD or Smart Optometry have ads?

Eye Chart HD shows ads; Smart Optometry does not.

### Which is updated more often, Eye Chart HD or Smart Optometry?

Eye Chart HD ships an update every 6 months, and Smart Optometry every 4 months. Most recently, Eye Chart HD was updated on September 25, 2026 and Smart Optometry on September 24, 2026.

---

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