I've been a loyal user of ver 5.6 for many of my customer websites and have intentions to move to 8.0 soon. I'm checking out the "Express" module and find it interesting.

Is it possible to build user database web applications with this tool?
The intent is to have user manipulate data. Add and maintain records.
I'd like to be able to create tables, fields and transaction records.

If you have a better solution (add-ons) or good practices recommendation that interfaces with Concrete5 (5.6 or 8.0) it would be appreciated.