I want to run VTScada on two separate computer/server. Do i need to buy two separate licence for each machine. Or only one license will be enough?

You will need a license for each machine. Note the following:

• If you wish to have thin client licenses, you will only need to purchase those for one machine but the client server will be able to be distributed across all machines on the server list.
• If you want alarm notification or third party data on each server, you will need to purchase that feature for each server.

If you want help pricing your system, please head to: https://www.vtscada.com/contact-us/