# fx12

> Companion app for fx12, fxRDT, and fxWS devices for parameter control and data viewing. (iPhone/iPad app by Rene Limberger.)

- Source: https://appshunter.io/ios/app/fx12/id1089760330 (this page in markdown: same URL + `.md`)
- Developer: [Rene Limberger](https://appshunter.io/developer/495997736)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 9.3 · 38 MB
- Languages: American English
- Released: 2016-12-12
- Data updated: 2026-06-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/fx12/id1089760330/reviews.md

## What is fx12?

fx12 is the companion app to fx12, fxRDT and fxWS devices. It provides a interface to view & change parameters of fx12 and fxRDT, including altimeter & GPS data in realtime. The optional Apple Watch app shows the realtime telemetry and allows you to RDT the model.


This app may use your location even when it isn’t open, which can decrease device battery life. Continued use of GPS running in the background can dramatically decrease battery life.

## Key features

- View and change device parameters
- Real-time altimeter data
- Real-time GPS data
- Optional Apple Watch app
- Remote model control


## Frequently asked questions about fx12

### What devices does fx12 work with?

fx12 is designed as a companion app for fx12, fxRDT, and fxWS devices. It allows you to interact with and monitor these specific hardware units.

### Can I see my location in real-time with fx12?

Yes, fx12 provides real-time GPS data viewing. This feature helps you monitor your location directly through the app's interface.

### Does fx12 have an Apple Watch app?

Yes, there is an optional Apple Watch app available for fx12. This allows you to view real-time telemetry and control the model directly from your wrist.

### How does fx12 affect my device's battery life?

fx12 may use your location in the background, which can decrease device battery life. Continued use of GPS running in the background can dramatically decrease battery life.

### What is the rating for fx12?

fx12 has a high rating of 5.0 stars based on 2 user reviews, indicating a very positive user experience.

### Is fx12 free to download?

Yes, fx12 is available for free download. There are no upfront costs associated with acquiring the application.

### How often is fx12 updated?

The latest version of fx12 is 1.12, which was last updated on June 7, 2019. This indicates a moderate update frequency.

### What age rating is fx12?

fx12 has an age rating of 4+. This means it is considered suitable for children and general audiences.

## Version history (last 5 releases)

### 1.12 — 2019-06-07

Fixed F1B angle & input issues for S2 & S3
Fixed step name persistence
Swapped F1B default servo names for S2/S3

### 1.11 — 2018-08-17

Various bug fixes and user interface improvements.

### 1.10 — 2018-07-10

Added support for fx12s & fxFour

### 1.9 — 2018-04-05

fixed: OLA parameters
fixed: missing device shutdown button

### 1.8.0 — 2018-03-31

* added F1A hook OLA delay parameters
* various bug fixes
* faster WFU

## More apps by Rene Limberger

- [fx12 v3](https://appshunter.io/ios/app/fx12-v3/id1518495325)

All apps by Rene Limberger: https://appshunter.io/developer/495997736

## Related topics

[fx12](https://appshunter.io/ios/topics/fx12) · [fovionics](https://appshunter.io/ios/topics/fovionics)

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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 2026-06-09.*