I found this Ipad app this morning and it is pretty interesting for options (and it's free!). It looked pretty simple at first, but gets more interesting the more I play with it. It is very visual and clean and designed for many options strategies. Unfortunately, covered calls and cash-secured puts are not even listed. However, it does list Buy-Writes and Naked Puts which will give you the Risk/Return information that would match a covered strategy. Watch the tutorial videos (they are short), they are useful!