You can purchase licenses securely either with a Credit Card or with a PayPal account. PayPal will handle the online payment in either case. A PayPal account is not required if you pay with a credit card, but you must use a computer, and not a mobile device, to pay this way. (Still having trouble paying with a credit card?)

You will receive an email with the download links and the license ID's after the purchase is complete.

You'll be asked to enter the license ID's as they are listed in the email you will receive to activate these software. The number of computers on which you may activate these software may not exceed the number of computer licenses that you have purchased. Once a license is activated, it's tied to the specific computer and cannot be transferred to another.

Lifetime license means that you may use the software indefinitely, on the same computer. (as opposed to a subscription license where you have to renew the license periodically in order to continue using the software).