I've been using the app on breaks at work at nearly half the rate I had been using RIF. Here we see that it still used about 2x the data in roughly the same time period.
The app's great. The bugs are getting hammered out and Lemmy's great too. Can you look into doing some optimising soon?
Edit: To be more specific. RIF used just over 1gig over 10 days of browsing during breaks. Most months hit about 2-2.5 gigs. While connect used 2gigs in 6 days.
I'm assuming the increased data usage comes from fetching the content directly from the source where large images or videos might be allowed, whereas on Reddit this stuff was compressed and had limited sizes