Altium Designer provides you with a complete design solution, allowing you to design your products from concept to manufacturing. This includes complete front-end design solution for both the Logical and physical aspects of your product.
Time-based license allows the user to use the licensed software for a specified period of time. The license is entitled to updates while the license is active.
Perpetual license allows the user to use the licensed software indefinitely. The license is entitled to future updates as long as it stays on subscription with Altium Designer.