# Smart Optometry vs Stroop Test J Lite

The clearest difference is review sentiment: Smart Optometry at 42% against Stroop Test J Lite's 0%. Smart Optometry also leads on ads (none vs shown) and update cadence (every 4 months vs every 36 months). Stroop Test J Lite's advantage is in-app purchases (none vs 10). On price there is nothing between them.

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

Smart Optometry ships an update every 4 months, Stroop Test J Lite every 36 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Smart Optometry | Stroop Test J Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (529 ratings)](https://appshunter.io/ios/app/smart-optometry/id1053891266/reviews)** | — |
| Number of ratings | **529** | — |
| Positive reviews | **42.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 36 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 28 MB | 4 MB |
| Requires iOS | **13** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Hundred Vision d.o.o.](https://appshunter.io/developer/1053891265) | [Takuya Kawakami](https://appshunter.io/developer/721449462) |

## 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


### Stroop Test J Lite

[App page](https://appshunter.io/ios/app/stroop-test-j-lite/id1095231198)

This app measures response inhibition and attention by presenting a classic cognitive test. It helps assess potential frontal lobe dysfunction and interference processing. Results indicate time taken and errors, with higher scores suggesting greater impairment.

**Highlights:** Response inhibition assessment, Attention division test, Measures time to complete, Counts mistakes, Interference processing evaluation

**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 Stroop Test J Lite free?

Stroop Test J Lite is free to download, with no in-app purchases.

### Do Smart Optometry or Stroop Test J Lite have ads?

Stroop Test J Lite shows ads; Smart Optometry does not.

### Which is updated more often, Smart Optometry or Stroop Test J Lite?

Smart Optometry ships an update every 4 months, and Stroop Test J Lite every 36 months. Most recently, Smart Optometry was updated on October 15, 2026 and Stroop Test J Lite on October 14, 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.*