Provided that you are subscrbed to market data of the product, with your broker:
When you enter a Futures or Options contract screen, if you swipe your finger to the right, you will access a different view for the contract, that shows the market depth of the contract, with 5 bid/ask places.
At the top of every contract screen, you will see the name of the view you are currently at, and to which side you should swipe to see other views, or click on them. All contracts have their related Twitter conversation when swiping left, and Futures and Forex have a daily chart view when swiping right.
On tablets, you will always see market depth in the main contract screen.