# FSi Radio

> Flight simulator aviation radio control addon for PC. (iPhone/iPad app by Knolis Ltd..)

- Source: https://appshunter.io/ios/app/fsi-radio/id642100682 (this page in markdown: same URL + `.md`)
- Developer: [Knolis Ltd.](https://appshunter.io/developer/524036269)
- Category: Games, Utilities
- Price: $4.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 38 MB
- Languages: English
- Released: 2013-05-16
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fsi-radio/id642100682/reviews.md

## What is FSi Radio?

The FSi Radio is an universal all in one aviation radio addon for your favorite flight simulator. It allows you to control the frequencies for the whole radio stack and it also includes DME for the IFR enthusiasts. 

IMPORTANT - this app is intended for Microsoft Flight Simulator X or X-Plane users and is not usable on its own. You will need the iPad and the computer running the simulator to be on the same network. 

Features:
COM1 and COM2 VHF voice radio mode
NAV1 and NAV2 VHF navigation radio mode
ADF1 and ADF2 navigation radio mode
DME1 and DME2, linked to NAV1 and NAV2 receivers
Active and Standby frequency displays, allowing easy frequency adjustment with an instant swap function

Remembers the last mode used. You can have up to 8 iOS devices in your setup, each controlling separate instrument, or used as a backup for the primary one.

Beautiful day and night display schemes.

FSi Server is required to establish the connection between Flight Simulator and your device. It can be downloaded free at http://avioware.com/download.

## Key features

- COM1 and COM2 VHF voice radio control
- NAV1 and NAV2 VHF navigation radio control
- ADF1 and ADF2 navigation radio control
- DME1 and DME2 functionality
- Active and Standby frequency display with swap
- Supports up to 8 iOS devices
- Day and night display schemes

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/fsi-radio/id642100682/reviews.md

### 3/5 — Not compatible with X-Plane 10

*2013-06-30, version 1.7*

This app works fine with X-Plane 9 and does everything it's supposed to do.  However, while it will show the frequencies your radios are tuned to in X-Plane 10, it will not actually tune them or swap to the stand-by frequency.

As an aside, it would be nice if it worked with the transponder, too.  Currently, it only controls com, nav, and ADF.

## Frequently asked questions about FSi Radio

### What flight simulators is FSi Radio compatible with?

FSi Radio is intended for Microsoft Flight Simulator X and X-Plane. It requires a separate server application to be downloaded and run on your computer.

### How does FSi Radio connect to the flight simulator?

You need to download the free FSi Server application from avioware.com and ensure your iPad and computer running the simulator are on the same network for the connection to be established.

### Can I use multiple devices with FSi Radio?

Yes, FSi Radio allows you to use up to 8 iOS devices in your setup. Each device can control a separate instrument or serve as a backup for the primary one.

### Does FSi Radio support offline play?

No, FSi Radio requires an active connection to a flight simulator running on a computer, so it is not usable offline.

### What is the price of FSi Radio?

FSi Radio is a paid application priced at $4.99. There are no in-app purchases or subscription fees mentioned.

### How often is FSi Radio updated?

The latest version of FSi Radio is 1.11, which was last updated on July 10, 2017. This indicates a less frequent update schedule.

### What is the age rating for FSi Radio?

FSi Radio has an age rating of 4+, making it suitable for a wide range of users.

### Does FSi Radio have ads?

The provided data does not indicate the presence of advertisements in FSi Radio. It is a paid application.

## Version history (last 1 release)

### 1.11 — 2017-07-10

This app has been updated by Apple to display the Apple Watch app icon.

Improvements for iPhone 6 and 7

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## More apps by Knolis Ltd.

- [FSi C172](https://appshunter.io/ios/app/fsi-c172/id524035566)
- [FSi C172 Free](https://appshunter.io/ios/app/fsi-c172-free/id529863884)
- [FSi Radio Preview](https://appshunter.io/ios/app/fsi-radio-preview/id642135076)
- [FSi R22 Free](https://appshunter.io/ios/app/fsi-r22-free/id871040933)

All apps by Knolis Ltd.: https://appshunter.io/developer/524036269

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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 2026-06-10.*