If you are running macOS Mojave and cannot move your mouse, this is due to the new security requirements in Mojave. You should have been notified by a popup in the app.
Please make sure you download the server from the Mac App Store.
If you have previously downloaded it from our website please delete the app from your computer and download it from the Mac App Store.
Then please open System Preferences in OS X. Go to Security & Privacy. Then to Accessibility. Then to the Privacy tab. Make sure the Mobile Mouse Server is in the list of app and checked.
If you have any problems please contact our support for help.