FSK Comm

FSK Comm is an Android app for sending and receiving encrypted text messages over radio.

It is built for practical communication without accounts, logins, or unnecessary setup. The app keeps the workflow simple: write a message, transmit it over radio audio, record the incoming signal, and decode it on the receiving side.

FSK Comm is suitable for field communication, radio testing, and controlled real-world use where a compact and straightforward messaging tool is needed.

Key features:

- send and receive encrypted text messages over radio

- no account registration required

- simple workflow for transmitting and decoding messages

- suitable for field use, experiments, and system testing

FSK Comm focuses on secure messaging with a clear user experience and no extra services.