# Vision Scan Lite vs Smart Optometry

The clearest difference is rating: Smart Optometry at 4.4 against Vision Scan Lite's 1.0. Smart Optometry also leads on update cadence (every 4 months vs every 42 months) and ratings volume (529 vs 1). Vision Scan Lite's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 13). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Vision Scan Lite sells 1 one-off in-app purchase 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.

Smart Optometry holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Smart Optometry has 529 ratings behind it against 1, so its average is the more settled of the two.

Vision Scan Lite ships an update every 42 months, Smart Optometry every 4 months. The most recent releases landed on June 25, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Vision Scan Lite | Smart Optometry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/vision-scan-lite/id898197162/reviews) | **[4.4 (529 ratings)](https://appshunter.io/ios/app/smart-optometry/id1053891266/reviews)** |
| Number of ratings | 1 | **529** |
| Positive reviews | — | 42.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 28 MB |
| Requires iOS | **9.0** | 13 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Cygnet Infotech LLC](https://appshunter.io/developer/403931282) | [Hundred Vision d.o.o.](https://appshunter.io/developer/1053891265) |

## What reviewers say

### Vision Scan Lite

[App page](https://appshunter.io/ios/app/vision-scan-lite/id898197162)

This app offers a suite of vision tests, including checks for myopia, color vision deficiency, and contrast sensitivity. It provides a convenient way to monitor your eye health and share results with your doctor.

**Highlights:** Near Vision (Myopia) Check, Color Vision Deficiency Test, Amsler Grid for retinal health, Contrast Sensitivity Measurement, Shareable vision reports, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock new tests | $2.99 | 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 Vision Scan Lite free?

Vision Scan Lite 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, Vision Scan Lite or Smart Optometry?

Smart Optometry is rated higher. Vision Scan Lite averages 1.0 out of 5 from 1 ratings, while Smart Optometry averages 4.4 from 529 ratings.

### Do Vision Scan Lite or Smart Optometry have ads?

Neither Vision Scan Lite nor Smart Optometry shows ads.

### Which is updated more often, Vision Scan Lite or Smart Optometry?

Vision Scan Lite ships an update every 42 months, and Smart Optometry every 4 months. Most recently, Vision Scan Lite was updated on June 25, 2026 and Smart Optometry on September 29, 2026.

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