# Smart Optometry vs Calculate VA

The clearest difference is review sentiment: Calculate VA at 100% against Smart Optometry's 42%. Calculate VA also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 10). Smart Optometry's advantage is ratings volume (529 vs 3) and update cadence (every 4 months vs every 11 months). On price, 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. Calculate VA asks for nothing beyond the download.

Calculate VA 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 3, 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 100% of Calculate VA's.

Smart Optometry ships an update every 4 months, Calculate VA every 11 months. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Smart Optometry | Calculate VA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (529 ratings)](https://appshunter.io/ios/app/smart-optometry/id1053891266/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calculate-va/id1425990457/reviews)** |
| Number of ratings | **529** | 3 |
| Positive reviews | 42.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 11 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 1 MB |
| Requires iOS | **13** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Hundred Vision d.o.o.](https://appshunter.io/developer/1053891265) | [David Kramer](https://appshunter.io/developer/1425990456) |

## 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


### Calculate VA

[App page](https://appshunter.io/ios/app/calculate-va/id1425990457)

Instantly convert between common visual acuity measurements. This tool is designed for eye care professionals needing to fluidly switch between Snellen, Decimal, logMAR, and ETDRS Letter formats. Get accurate conversions with a single tap.

**Highlights:** Instant visual acuity conversions, Supports Snellen 20/20, Supports Snellen 6/6, Supports Decimal, Supports logMAR, Supports ETDRS Letters

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Optometry free?

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

### Is Calculate VA free?

Calculate VA is free to download, with no in-app purchases.

### Which has better reviews, Smart Optometry or Calculate VA?

Calculate VA is rated higher. Smart Optometry averages 4.4 out of 5 from 529 ratings, while Calculate VA averages 5.0 from 3 ratings.

### Do Smart Optometry or Calculate VA have ads?

Neither Smart Optometry nor Calculate VA shows ads.

### Which is updated more often, Smart Optometry or Calculate VA?

Smart Optometry ships an update every 4 months, and Calculate VA every 11 months. Most recently, Smart Optometry was updated on November 2, 2026 and Calculate VA on October 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.*