Should have read reviews

I should have read the reviews before updating the app. They have messed up a really good app.
It was much easier to use earlier.
Please provide a way to revert back to earlier version.
Update: more issues
This is not quick entry as you are advertising it. Now after entering vendor, I have to enter all the other information like category, subcategory etc. whereas the list shown in previous version for auto-fill really helped for quick entry.

Calculator does not work. Whenever I click +, it removes number previously entered.

Why is sub-category mandatory? I may have expenses that do not need to go to sub-category level. Also, upgrade wiped out my categories that didnt have sub-category. You should have mentioned this in upgrade notes.

-Update 2: When are fixes to the issues coming out?

Jin35789 about iXpenseIt Pro: Manage Finance, v9.0