In order to help Linked Booster users to manage their LinkedIn accounts in the best way, Linked Booster shows you a board that summarizes the number of connections automatically sent as well as the number of messages and notifications users have on LinkedIn without opening LinkedIn page. You can summon this board by clicking on Linked Booster icon located on the taskbar.
Since version v8.0.0, you can see how many invite was sent at Dashboard.
Or you can check how many invite was sent at this link