# Gray Designs Ground Station vs BT Car Controller

The clearest difference is device support: BT Car Controller at 3 against Gray Designs Ground Station's 1. BT Car Controller also leads on iOS requirement (15 vs 17.5). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Gray Designs Ground Station ships an update monthly, BT Car Controller every 3 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Gray Designs Ground Station | BT Car Controller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 2 MB | 3 MB |
| Requires iOS | 17.5 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Theil](https://appshunter.io/developer/1796731157) | [RUI-SHENG CHEN](https://appshunter.io/developer/1847570678) |

## What reviewers say

### Gray Designs Ground Station

[App page](https://appshunter.io/ios/app/gray-designs-ground-station/id6742085823)

**Features:** macOS Compatibility

**In-app purchases:** none


### BT Car Controller

[App page](https://appshunter.io/ios/app/bt-car-controller/id6754270007)

**In-app purchases:** none


## Frequently asked questions

### Is Gray Designs Ground Station free?

Gray Designs Ground Station is free to download, with no in-app purchases.

### Is BT Car Controller free?

BT Car Controller is free to download, with no in-app purchases.

### Do Gray Designs Ground Station or BT Car Controller have ads?

Neither Gray Designs Ground Station nor BT Car Controller shows ads.

### Which is updated more often, Gray Designs Ground Station or BT Car Controller?

Gray Designs Ground Station ships an update monthly, and BT Car Controller every 3 weeks. Most recently, Gray Designs Ground Station was updated on October 25, 2026 and BT Car Controller on October 7, 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.*