Purchasing any of our MT4 indicators grants you a single lifetime license. Our lifetime license allows you to use the indicators in one MT4 trading account at a time. This means that you can run the indicators in more than one computer as long as in each of those computer’s MT4 terminal, you are logged on to the same trading account.
You are free to transfer it across different MT4 trading accounts (say, a demo account to a live account) any time you wish however you cannot use them simultaneously unless you purchase a second license which costs 50% of the original price as stated here at the third paragraph of our installation guide:
http://mt4.quantumtrading.com/quantum-trading-indicators-lifetime-license-new-installation-and-activation-guide/
To avail the 50% discount on your second license, a coupon code is provided to customers upon request at helpdesk[@]quantumtrading.com.