Hi, Tarek; our cTrader products are linked to your cTrader ID; if someone else uses the same PC with a different cTrader account, it will not work; they would need to buy a copy.
If you purchased the source code, you can use it on multiple computers with multiple cTrader IDs, so there are no limitations. You will also be able to use it on the cloud.
https://help.clickalgo.com/account/registration/#ctrader-id-licensing