This documentation discusses the security of your guiDesigner projects when using LaunchPad.

The first security measure to take is to encrypt your project before uploading it to LaunchPad.
This is done using the guiDesigner File > Export > Encrypted Project Archive… option. This will ensure that anyone who may get access to the project files will only receive an encrypted archive.

Any user who knows or guesses your project token can load the project on a mobile device.