What if I want to change from Zoho

What if I want to change from Zoho

I am a novice just to start. I plan on developing (with help) an online Electronic Medical Record where all information is input online from Ipad/Iphone/pc and then is stored on a fairly extensive database. I plan to use the database to extract data to autofill PDF reports and nursing evaluations then to store as permanent electronic documents that can be signed. If I use this to help develop my online forms and database will I be forever stuck with using this product or can I then move to another database and hosting entity with the forms/tables I have already created? Am I married to this product forever? What product will be better. I plan on using Dreaweaver and the Adobe CS5 products. Would I be smarter to just use the dreamweaver for future portability?