# Eye Chart Pro vs 双眼视功能检查

The clearest difference is in-app purchases: 双眼视功能检查 at none against Eye Chart Pro's 11. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Eye Chart Pro sells 11 one-off in-app purchases. 双眼视功能检查 asks for nothing beyond the download.

Eye Chart Pro ships an update every 3 months, 双眼视功能检查 every 4 months. The most recent releases landed on July 27, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Eye Chart Pro | 双眼视功能检查 |
| --- | --- | --- |
| 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 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 11 MB |
| Requires iOS | **12.0** | 13.2 |
| Devices | iPad | iPad |
| Age rating | 4+ | 12+ |
| Developer | [Manu Lakkur](https://appshunter.io/developer/293163442) | [Guangzhou Shijing Medical Software Co. Ltd.](https://appshunter.io/developer/389115776) |

## 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 |


### 双眼视功能检查

[App page](https://appshunter.io/ios/app/id796320355)

**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 双眼视功能检查 free?

双眼视功能检查 is free to download, with no in-app purchases.

### Do Eye Chart Pro or 双眼视功能检查 have ads?

Neither Eye Chart Pro nor 双眼视功能检查 shows ads.

### Which is updated more often, Eye Chart Pro or 双眼视功能检查?

Eye Chart Pro ships an update every 3 months, and 双眼视功能检查 every 4 months. Most recently, Eye Chart Pro was updated on July 27, 2026 and 双眼视功能检查 on September 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.*