Can I Purchase The OneDrive AddOn Under The Free Plan?

I am confused. Can I purchase the Onedrive addon without a premium plan under the free version: https://updraftplus.com/shop/onedrive/?

I just need to automatically store all backups to onedrive and I dont need access to any other premium integration app.

Will this addon serve my use case without any limitations?

Thank you and your prompt response is always appreciated!