If you have purchased the radio access feature in SmartSDR for iOS, you do not have to repurchase for 2.0. If it doesn't show up, simply restore your in-app purchases. Or, as mentioned by Larry, repurchase and it will not charge you.
What I did find last night was a receipt from the Apple store for $49.99 plus tax - that was a major surprise :( I didn't expect that at all. Since I have no intention of using smartlink I got it refunded first thing this morning.