SimLab Composer is available in four editions: Educational/Hobbyist, Pro, Mechanical, and Ultimate. The Freeware edition does not need registering and is free to use for both commercial and non-commercial purposes. The Professional, Floating, and Educational editions have a trial period during which they can only be used for evaluation purposes. After this trial period, you must register the product or stop using it altogether.
You can instantly order any kind of the offered licenses for SimLab Composer at any time over the Internet with any major credit card, PayPal, purchase order, wire transfer, phone order, fax order, check or cash.
After you purchased a license, you'll receive your personal registration code and the release version of SimLab Composer.