# Frequently asked questions

Answers about KST4Contest, ON4KST contest operation, downloads, AirScout integration and supported platforms.

## What is KST4Contest?

KST4Contest is a contest-optimized ON4KST chat client for VHF, UHF and SHF ham radio contest operation.

## Is KST4Contest a replacement for wtKST, KST2Me or KSTChat?

KST4Contest follows a different approach. It is focused on contest workflow, priority candidates, sked handling, AirScout support, log synchronization and operator decision support.

## Which platforms are supported?

KST4Contest provides release artifacts for Windows, Linux and macOS through GitHub Releases.

## Does KST4Contest support AirScout?

Yes. KST4Contest is designed to integrate AirScout-related workflow information into contest operation.

## Where can I download KST4Contest?

Official builds are available on the GitHub Releases page.