Hello, We only charge for our product if and when you decide to trade live through any of the over one hundred supported broker's world-wide. This means you have the ability to use all of our features for free until you decide to trade into your live account. The only difference between the paid live license and the free version license is the ability to trade into a live account. Whether your data feed is real time or delayed will depend upon your data feed provider. Typically the data feeds who can be integrated with NinjaTrader are real time. Sincerely, NinjaTrader Mike