The license to use the software does not expire.
A license is for a single PC and for a single activation.
(If you are replacing critical parts of your computer that require a new installation and subsequent activation of the software, you will need to purchase a new license.)
The Free version of LabCeph 2.0 is freely usable.
Costs:
LightningCeph 4.0 costs 100.00 EUR.
LightningCeph 5.0 costs 250.00 EUR.
You can use Credit Card Facilities: