# Smart Optometry vs 9 Gaze

Smart Optometry and 9 Gaze both sit at 4.4 stars, but that hides the real split: 86% of 9 Gaze's written reviews are positive against 42% of Smart Optometry's. 9 Gaze also leads on in-app purchases (none vs 10) and update cadence (every 2 months vs every 4 months). Smart Optometry's advantage is ratings volume (529 vs 22). On price, rating, ads and device support there is nothing between them.

Both are free to download. Smart Optometry sells 10 in-app purchases, starting at $2.99 per month. 9 Gaze asks for nothing beyond the download.

9 Gaze holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Smart Optometry has 529 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 42% of Smart Optometry's written reviews are positive against 86% of 9 Gaze's.

Smart Optometry ships an update every 4 months, 9 Gaze every 2 months. The most recent releases landed on September 20, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Smart Optometry | 9 Gaze |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (529 ratings)](https://appshunter.io/ios/app/smart-optometry/id1053891266/reviews) | **[4.6 (22 ratings)](https://appshunter.io/ios/app/9-gaze/id1173442389/reviews)** |
| Number of ratings | **529** | 22 |
| Positive reviews | 42.3% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 36 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Hundred Vision d.o.o.](https://appshunter.io/developer/1053891265) | [See Vision, LLC](https://appshunter.io/developer/1173442388) |

## What reviewers say

### 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


### 9 Gaze

[App page](https://appshunter.io/ios/app/9-gaze/id1173442389)

This app helps document eye motility and strabismus in nine cardinal positions. It offers an on-screen guide for consistent eye positioning and automatically creates composite images for easy exporting. Users can add strabismus measurements and email or save images for medical records.

**Highlights:** Document eye motility and strabismus, On-screen guide for eye positioning, Automatic composite image creation, Add strabismus measurements, Selfie or standard mode, Email or save images

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Smart Optometry free?

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

### Is 9 Gaze free?

9 Gaze is free to download, with no in-app purchases.

### Which has better reviews, Smart Optometry or 9 Gaze?

9 Gaze is rated higher. Smart Optometry averages 4.4 out of 5 from 529 ratings, while 9 Gaze averages 4.6 from 22 ratings.

### Do Smart Optometry or 9 Gaze have ads?

Neither Smart Optometry nor 9 Gaze shows ads.

### Which is updated more often, Smart Optometry or 9 Gaze?

Smart Optometry ships an update every 4 months, and 9 Gaze every 2 months. Most recently, Smart Optometry was updated on September 20, 2026 and 9 Gaze on August 27, 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.*