Is there a free version of Dropbox I can install on my iPad?

When I look at the contents of the share dropbox folder most documents will launch correctly whether they be MS Word, PDFs or JPEG however RTF files don't launch into anything, what can I do to open these text files?

please note that it seems free DropBox on iPad only works within a browser page, true? What follows is a post about that…

I use the free version of Dropbox on my MacBook and would like to share that folder on a newly purchased iPad (I've never used an iPad before). If I go to the iPad App Store and download it it seems to insist on doing a one month free trial for the subscription version. I'd like to stick with the free version however when I look it up on my iPad web browser and click on the DropBox offer to get the free version, once I login I appear to be in that shared folder *however* all of this is happening within a safari page, whereas I thought it was downloading and launching a free version of the app. Does this mean I can only access the contents of the dropbox folder via a browser page? Thanks.