# Eye Chart HD vs Control LITE

The clearest difference is in-app purchases: Control LITE at none against Eye Chart HD's 2. Control LITE also leads on ads (none vs shown). Eye Chart HD's advantage is update cadence (every 6 months vs every 87 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Eye Chart HD sells 2 in-app purchases, starting at $2.99 per month. Control LITE asks for nothing beyond the download.

Eye Chart HD ships an update every 6 months, Control LITE every 87 months. The most recent releases landed on October 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Eye Chart HD | Control LITE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/eye-chart-hd/id382019572/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 87 months |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 2 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Shemesh Health Solutions PTY Ltd](https://appshunter.io/developer/578849338) |

## What reviewers say

### Eye Chart HD

[App page](https://appshunter.io/ios/app/eye-chart-hd/id382019572)

This app provides a clinically evaluated visual acuity screening tool for various settings. It offers randomized Snellen, Tumbling E, and other charts to help assess vision, especially when traditional charts are unavailable or memorized. Additional features are available through a monthly subscription.

**Highlights:** Randomized Snellen charts, Tumbling E charts, Pocket vision screener, Line randomization, Chart selector, Near vision chart (subscription), Amsler Grid (subscription)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Subscription | $2.99 | per month |
| Eye Chart HD Full Version | $0.99 | one-time |


### Control LITE

[App page](https://appshunter.io/ios/app/control-lite/id1361955533)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Eye Chart HD free?

Eye Chart HD is free to download, with in-app purchases available.

### Is Control LITE free?

Control LITE is free to download, with no in-app purchases.

### Do Eye Chart HD or Control LITE have ads?

Eye Chart HD shows ads; Control LITE does not.

### Which is updated more often, Eye Chart HD or Control LITE?

Eye Chart HD ships an update every 6 months, and Control LITE every 87 months. Most recently, Eye Chart HD was updated on October 17, 2026 and Control LITE on September 15, 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.*