A plain-language summary. The licence you receive at purchase is the binding document.
A Lifetime licence can include one year of updates and email support for $99. After that year you can renew for $99 a year. The software you already have keeps working if you do not renew.
You are responsible for your own backups, for checking tax, accounting and local rules in your country, and for supporting your own customers if you resell. Features listed as limits or roadmap are not part of the product until released.
Because the software is delivered digitally, purchases are final once delivered, subject to the refund policy on the main website. Try the software or book a demo before you buy.
This summary is not legal advice and should be reviewed by a lawyer before it is used as your final contract.