# Chart2020 Lite vs Ophthalmology & Optometry

The clearest difference is review sentiment: Ophthalmology & Optometry at 61% against Chart2020 Lite's 0%. Ophthalmology & Optometry also leads on rating (4.7 vs 1.0) and monetization model (free with in-app purchases vs subscription). Chart2020 Lite's advantage is iOS requirement (12.0 vs 17.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Chart2020 Lite sells 4 in-app purchases, starting at $7.99 per 7 days and Ophthalmology & Optometry sells 8 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Ophthalmology & Optometry holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Ophthalmology & Optometry has 120 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Chart2020 Lite's written reviews are positive against 61% of Ophthalmology & Optometry's.

Chart2020 Lite ships an update every 3 months, Ophthalmology & Optometry every 4 days. The most recent releases landed on June 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Chart2020 Lite | Ophthalmology & Optometry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/chart2020-lite/id1364522406/reviews) | **[4.7 (120 ratings)](https://appshunter.io/ios/app/ophthalmology-and-optometry/id6471442410/reviews)** |
| Number of ratings | 1 | **120** |
| Positive reviews | 0.0% of reviews | **60.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Subscription | **Free with in-app purchases** |
| Best chart rank | — | **#142** |
| Size | 58 MB | 231 MB |
| Requires iOS | **12.0** | 17.1 |
| Devices | iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Shemesh Health Solutions PTY Ltd](https://appshunter.io/developer/578849338) | [My Call Bag LLC](https://appshunter.io/developer/1243282862) |

## What reviewers say

### Chart2020 Lite

[App page](https://appshunter.io/ios/app/chart2020-lite/id1364522406)

This app provides a digital eye chart with various testing options, including different chart types and masking features. It offers remote control capabilities via a companion iPhone app or an optional Bluetooth remote, making it suitable for professional and home use.

**Highlights:** Multiple chart types (Sloan/Snellen, Balancing, Astigmatism), Customizable testing distance, Variety of letter/number/symbol sets, Masking and randomization options, Companion iPhone app for remote control, Optional Bluetooth remote control

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Weekly Subscription | $7.99 | per 7 days |
| Monthly Subscription | $19.99 | per month |
| Yearly Subscription | $149.99 | per year |


### Ophthalmology & Optometry

[App page](https://appshunter.io/ios/app/ophthalmology-and-optometry/id6471442410)

**Currently charting:** #142 Top Grossing · Medical (US App Store)

This app transforms your iPhone into a comprehensive digital call bag for healthcare professionals. It offers a wide array of specialized tools for ophthalmology, neurology, optometry, emergency medicine, and internal medicine, leveraging advanced iPhone camera and sensor technology.

**Highlights:** Ophthalmology diagnostic tools, Neurology screening tools, Optometry vision tests, Emergency medicine aids, Internal medicine calculators, LiDAR exophthalmometer, AI Lensometer

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| iPad Monthly Subscription | $9.99 | per month |
| Annual Subscription to iPad App | $49.99 | per year |
| Annual Subscription | $49.99 | per year |
| 100 Credits | $3.99 | one-time |
| 500 Credits | $19.99 | one-time |
| Lifetime Access to iPad App | $149.99 | one-time |
| My Call Bag | $249.99 | one-time |


## Frequently asked questions

### Is Chart2020 Lite free?

Chart2020 Lite is free to download, with in-app purchases available.

### Is Ophthalmology & Optometry free?

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

### Which has better reviews, Chart2020 Lite or Ophthalmology & Optometry?

Ophthalmology & Optometry is rated higher. Chart2020 Lite averages 1.0 out of 5 from 1 ratings, while Ophthalmology & Optometry averages 4.7 from 120 ratings.

### Do Chart2020 Lite or Ophthalmology & Optometry have ads?

Neither Chart2020 Lite nor Ophthalmology & Optometry shows ads.

### Which is updated more often, Chart2020 Lite or Ophthalmology & Optometry?

Chart2020 Lite ships an update every 3 months, and Ophthalmology & Optometry every 4 days. Most recently, Chart2020 Lite was updated on June 1, 2026 and Ophthalmology & Optometry on September 23, 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.*