# RCTx

> Remote control transmitter for Arduino-powered vehicles using RCOIP protocol. (iPhone/iPad app by AirSpayce.)

- Source: https://appshunter.io/ios/app/rctx/id567423127 (this page in markdown: same URL + `.md`)
- Developer: [AirSpayce](https://appshunter.io/developer/564666685)
- Category: Utilities, Entertainment
- Price: $9.99
- Age rating: 4+
- Requires: iOS 12.0 · 5 MB
- Languages: American English
- Released: 2012-10-10
- Data updated: 2026-08-21
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/rctx/id567423127/reviews.md

## What is RCTx?

Remote Control transmitter for RCOIP (Remote Control Over IP) protocol.

This transmitter works across an internet with the Arduino RCKit, a kit of software objects for creating Remote-Control vehicles with motors, steppers, servos, analog and digital inputs and outputs.

Includes telemetry backchannel data to display signal strength and battery voltage at the remote vehicle.

Uses a Wi-Fi Ad-Hoc network and the RCOIP protocol to communicate with an Arduino equipped with a WiShield and your custom vehicle software written using the RCKit.

RCKit and the RCOIP protocol is available under GPL or Commercial licenses. See http://www.airspayce.com/mikem/arduino/RCKit for more details

Videos at
http://www.youtube.com/watch?v=SKwY-CcotRY
http://www.youtube.com/watch?v=i0ZogFmytPI

Forthcoming releases of RCTx will include configurable transmitter interface, backchannels for GPS positions, remote vehicle position mapping, remote vehicle webcams, macro recording and more.

Note: this transmitter cannot be used to control conventional radio control vehicles. The vehicle must be equipped with Arduino, Wi-Fi and the RCKit software.

## Key features

- Remote control for RCOIP protocol
- Works across the internet
- Telemetry backchannel data
- Wi-Fi Ad-Hoc network support
- Configurable interface (forthcoming)
- GPS position backchannels (forthcoming)

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/rctx/id567423127/reviews.md

### 5/5 — Great

*2017-12-31*

Unfortunately it’s not working on ios 11.2.1, but it really helped me to build my first robot with arduino years ago. :)

## Frequently asked questions about RCTx

### What is RCTx used for?

RCTx is a remote control transmitter designed for RCOIP protocol-enabled vehicles. It allows users to control Arduino-powered vehicles with motors, steppers, and servos over the internet.

### What hardware is required to use RCTx?

To use RCTx, the vehicle must be equipped with an Arduino, a WiShield, and custom vehicle software written using the RCKit. It cannot control conventional radio control vehicles.

### Does RCTx provide feedback from the vehicle?

Yes, RCTx includes a telemetry backchannel that displays data such as signal strength and battery voltage from the remote vehicle.

### What is the price of RCTx?

RCTx is a paid application, priced at $9.99. There are no in-app purchases or advertisements.

### What platforms does RCTx support?

RCTx is available for iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is RCTx updated?

The latest version of RCTx is 1.11, last updated on January 26, 2025. Future releases are planned to include more features.

### Is RCTx suitable for children?

RCTx has an age rating of 4+, indicating it is generally suitable for younger users. However, its technical nature may require adult supervision for operation.

### Can RCTx be used offline?

No, RCTx requires an internet connection to communicate with the Arduino-equipped vehicle via the RCOIP protocol and Wi-Fi Ad-Hoc network.

## Version history (last 5 releases)

### 1.11 — 2025-01-26

Build with latest Xcode

### 1.10 — 2021-12-31

Migrate to new Apple UI requirements
More devices supported.
All device orientations supported.

### 1.9 — 2018-09-18

Fixed a problem that could prevent the joysticks and buttons appearing on some versions of iOS

### 1.8 — 2018-09-11

Fix problems with some iOS versions

### 1.7 — 2017-10-02

Support iOS 11

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## More apps by AirSpayce

- [Dsky](https://appshunter.io/ios/app/dsky/id567387896)
- [iBal Rotary](https://appshunter.io/ios/app/ibal-rotary/id567642367)
- [iBal Fixed](https://appshunter.io/ios/app/ibal-fixed/id1056428147)

All apps by AirSpayce: https://appshunter.io/developer/564666685

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*