Can I see the actual count of my physical stocks and the stocks recorded in the system, on a single screen?

Can I see the actual count of my physical stocks and the stocks recorded in the system, on a single screen?

Yes, you can see the actual count of your physical stocks and the stocks recorded in the system, all from the Stock Count Posting screen. When you click on the Post symbol (resembles a Page Refresh) on the Stock Count screen, under the Actions column the Adjustment Quantity column will automatically populate with the quantity adjusted and the status will change from UnCounted to either Matched or Unmatched.
Matched - If the counted quantity is the same as system quantity, the status will change to Matched 
UnMatched - If the counted quantity is different from the system quantity, the status will change to Unmatched.
Clicking on the Post button brings up a notification pop up asking you to confirm if you would like to update the current inventory. You can click Yes to update the inventory. 
Plugins in Tagrain are either Subscription Based or License Based. So the price that you pay for your plugins is based on the number of POS terminals that you have in your setup and the number of licences that you have acquired.