# Eye Chart Pro Remote Control vs TEMPO Karman Line

The clearest difference is update cadence: TEMPO Karman Line at every 11 months against Eye Chart Pro Remote Control's every 80 months. Eye Chart Pro Remote Control's advantage is iOS requirement (7.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Eye Chart Pro Remote Control ships an update every 80 months, TEMPO Karman Line every 11 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Eye Chart Pro Remote Control | TEMPO Karman Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/eye-chart-pro-remote-control/id448853455/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 80 months | **Every 11 months** |
| Monetization | Free | — |
| Size | 2 MB | 94 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Dok LLC](https://appshunter.io/developer/293163442) | [Yellow Riders](https://appshunter.io/developer/1209479274) |

## What reviewers say

### Eye Chart Pro Remote Control

[App page](https://appshunter.io/ios/app/eye-chart-pro-remote-control/id448853455)

Transform your iPhone or iPod Touch into a remote control for the Eye Chart Pro iPad app. This companion app allows for seamless vision testing by enabling remote control functionality.

**Highlights:** Remote control for iPad vision testing app, Works with Eye Chart Pro, Premium, and Professional, Turns iPhone/iPod Touch into a remote, Free preview functionality

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

**In-app purchases:** none


### TEMPO Karman Line

[App page](https://appshunter.io/ios/app/tempo-karman-line/id6499427855)

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

**In-app purchases:** none


## Frequently asked questions

### Is Eye Chart Pro Remote Control free?

Eye Chart Pro Remote Control is free to download, with no in-app purchases.

### Is TEMPO Karman Line free?

TEMPO Karman Line is free to download, with no in-app purchases.

### Do Eye Chart Pro Remote Control or TEMPO Karman Line have ads?

Neither Eye Chart Pro Remote Control nor TEMPO Karman Line shows ads.

### Which is updated more often, Eye Chart Pro Remote Control or TEMPO Karman Line?

Eye Chart Pro Remote Control ships an update every 80 months, and TEMPO Karman Line every 11 months. Most recently, Eye Chart Pro Remote Control was updated on November 3, 2026 and TEMPO Karman Line on November 8, 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.*