# Bluetooth for Arduino vs BT Car Controller

The clearest difference is in-app purchases: BT Car Controller at none against Bluetooth for Arduino's 5. BT Car Controller also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (15 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Bluetooth for Arduino sells 5 one-off in-app purchases. BT Car Controller asks for nothing beyond the download.

Bluetooth for Arduino ships an update every 2 months, BT Car Controller every 3 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Bluetooth for Arduino | BT Car Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (42 ratings)](https://appshunter.io/ios/app/bluetooth-for-arduino/id1505096526/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 45.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 3 MB |
| Requires iOS | 18.5 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Giuseppe Migliore](https://appshunter.io/developer/1505096105) | [RUI-SHENG CHEN](https://appshunter.io/developer/1847570678) |

## What reviewers say

### Bluetooth for Arduino

[App page](https://appshunter.io/ios/app/bluetooth-for-arduino/id1505096526)

Transform your iPhone or iPad into a wireless remote control for your Arduino projects. Easily connect to your Bluetooth module and send custom commands via keyboard or pre-designed buttons.

**Highlights:** Bluetooth remote control, Arduino project control, Custom command sending, Keyboard input, Button interface, Connect to Bluetooth modules

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Custom | $3.99 | one-time |
| Gamepad | $3.99 | one-time |
| Terminal | $3.99 | one-time |
| Unlock everything | $11.99 | one-time |


### BT Car Controller

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

**In-app purchases:** none


## Frequently asked questions

### Is Bluetooth for Arduino free?

Bluetooth for Arduino is free to download, with in-app purchases available.

### Is BT Car Controller free?

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

### Do Bluetooth for Arduino or BT Car Controller have ads?

Neither Bluetooth for Arduino nor BT Car Controller shows ads.

### Which is updated more often, Bluetooth for Arduino or BT Car Controller?

Bluetooth for Arduino ships an update every 2 months, and BT Car Controller every 3 weeks. Most recently, Bluetooth for Arduino 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.*