Is the website wrong? The repository for the toolkit is MIT, but the website says free for under $1million...
https://github.com/unoplatform/uno.toolkit.ui/blob/main/LICE...
https://platform.uno/uno-toolkit/
DEV FRIENDLY LICENSING
Uno Toolkit License
Uno Toolkit is available for free for individual developers and businesses with revenue of less than USD 1,000,000. If your revenue exceeds this threshold, please reach out to us to obtain a license for Uno Toolkit and access the complete suite of development accelerators.