Yes of course! You are free to upgrade or downgrade your plan at any time but please do be aware that you may lose some features. For example, the Lite plan will only support a maximum of two sensors so if you were to move to the Lite plan from a paid subscription you would need to select which sensors you wanted to keep active.
Similarly, if you moved from the complete plan to a lower level, you would lose some important benefits such as the annual engineer maintenance visits and professional monitoring with police response so consideration should be given to your new choice and our support team will be happy to advise you further.
Upgrading or downgrading of plans is available through the mobile application at any time.