One single Regular (not Personal) license allows you to install the application both on your work PC, home PC and one laptop.
One single Personal license allows you to install the application on your home PC and one laptop.
Please note that a USB-install is considered as a separate copy installed on a laptop or portable device.
Licenses are perpetual, unless otherwise noted. "Perpetual license" means that the product will never expire and usually you will also get free updates for a limited time or up until the next major release, however, it does not include free upgrades to new major versions that are released once every several years.