# Eye Chart Pro vs i

The clearest difference is in-app purchases: i at none against Eye Chart Pro's 11. i also leads on update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Eye Chart Pro sells 11 one-off in-app purchases. i asks for nothing beyond the download.

Eye Chart Pro ships an update every 3 months, i every 5 weeks. The most recent releases landed on July 27, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Eye Chart Pro | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/eye-chart-pro/id364802332/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 53.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 166 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 12+ |
| Developer | [Manu Lakkur](https://appshunter.io/developer/293163442) | [宁波明星科技发展有限公司](https://appshunter.io/developer/1271975555) |

## What reviewers say

### Eye Chart Pro

[App page](https://appshunter.io/ios/app/eye-chart-pro/id364802332)

This app provides a randomized visual acuity exam, functioning like a projector-based eye chart. It's useful for quick vision screenings, house visits, or when patients may have memorized standard charts. The app offers both Snellen and Tumbling E charts with randomization options.

**Highlights:** Randomizable Snellen Chart, Randomizable Tumbling E Chart, Randomize entire chart or line by line, Smooth interface with animations, Basic remote control, Metric / Feet functionality

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Amsler Grid in Portrait and Landscape. | $9.99 | one-time |
| Premium Home Edition of Eye Chart Pro | $19.99 | one-time |
| HOTV Chart | $19.99 | one-time |
| Sloan Letters Chart | $19.99 | one-time |
| ETDRS Chart 1 | $39.99 | one-time |
| Professional Version with ALL Features | $39.99 | one-time |
| Advanced Remote Control | $39.99 | one-time |
| All Charts | $39.99 | one-time |
| Sloan Duochrome Chart | $39.99 | one-time |
| Value Pack | $59.99 | one-time |
| Professional Package | $199.99 | one-time |


### i

[App page](https://appshunter.io/ios/app/i-optik-optometry/id1271975556)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Eye Chart Pro free?

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

### Is i free?

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

### Do Eye Chart Pro or i have ads?

Neither Eye Chart Pro nor i shows ads.

### Which is updated more often, Eye Chart Pro or i?

Eye Chart Pro ships an update every 3 months, and i every 5 weeks. Most recently, Eye Chart Pro was updated on July 27, 2026 and i on September 18, 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.*