I don't know anything about the BikeErg. But, I do own a CII rower. The rower's data goes through CII's servers, then synced from there to Strava (or wherever

I don't know anything about the BikeErg. But, I do own a CII rower. The rower's data goes through CII's servers, then synced from there to Strava (or wherever else). No direct integrations (though I think the signal is open, just nobody has built an app apart from CII). My recommendation, if you're a cyclist, would be a Wahoo Kickr Snap (wheel drive). Easy to mount the bike, wheels stay on, so easy to pull off when you ride outside. Then use whatever app you want (Wahoo's own, if you want basic stuff; Zwift if you want the social stuff and racing; TrainerRoad if you want straight up training programs with no fluff). The Wahoo and Stages bikes both look really nice, but they're mega-$$$$ (more than the Peloton, IIRC).