It's definitely a good idea for users to try out your platform with delayed data before going for one of your subscription plans. I'm looking for a data provider and am definitely considering your platform.
Question: do you allow download of tick data or price data of any timeframe? If so, how far back does your data go?
Yes, paying customers (subscribers) can replay Level II Data.
Full Market Data™ streams every Bid, Ask and Tic in real time on every Symbol on your list (up to 1,000 Symbols simultaneously).
Full Market Recording™ captures that data to your hard drive, and Full Market Replay™ allows you to play it back at a variety of speeds, including advancing manually packet by packet, 5 times and 2 times slower, real-time speed, and 2, 5, and 10 times faster than real time. The Full Speed option will replay data as fast as your processor and hard drives can handle. In my case that's about 2.5 minutes per second.