Connecting the game

What you need

1. The FS25_phone mod installed in Farming Simulator 25.
2. The Phone Companion running on the same PC.
3. An account here.

The mod works on its own without any of this. The companion and this site only add messaging between players who are in different savegames.

One-time setup

1. Create an account here.
2. Start PhoneCompanion.exe.
3. Open Settings, enter this server's address, your account name and your password, then press Sign in.
4. Tick Enable cloud sync.

That is it. From then on the companion reconnects on its own each time you start the game — you never type the password again.

Playing on someone else's server

If you play on a server whose owner runs the companion in host mode, you can let that server carry your messages while you are on it. Authorise it on your account page by entering the host's account name.

You can withdraw that permission at any time, and a server can never relay for you without it. Without it your phone still works normally — you simply cannot exchange messages with players outside that session.

If something is wrong

Phone shows "Companion offline"

The companion is not running, or it is pointed at the wrong game folder. Check the folder in its Settings tab.

Companion shows "Sign-in required"

The device token was revoked — usually because the password changed. Sign in again.

Messages do not arrive

Both players need the companion running with cloud sync enabled, and need each other as contacts.

Windows warns about the download

The companion is not code-signed. Compare its SHA-256 against the hash published with the download.