Short answer : yes.
Bit longer answer: I'm using Hearthstone Deck Tracker, also from HSReplay and the Windows version of their client, as you correctly guessed. I used to think that the two clients were functionally equivalent, with just minor (ie, cosmetic) differences in the interface. Never seen HSTracker running, you know. So I imagined snapshots like yours came from a totally different tracker.
Seems I was wrong. Either that or I'm a doofus, since I can't find any way to enable CIs in HDT.
Thanks again for your reply!