pacer app syncing?

I downloaded the Pacer app to track my steps and hypothetically to adjust daily calories accordingly. However, whether I walk 1,000 steps or 10,000, it always gives me 200-300 extra calories, even though on Pacer itself it usually says I've burned far less (rarely more than 200). I know from the FAQs that MFP will project (?) how many calories for the day it thinks I will burn based on step count, but it doesn't adjust that to a lower amount at the end of the day-- again always far more than the Pacer app says.

Is there something I'm doing wrong with set-up?? Is there an app that syncs more accurately (for Android)? This whole thing doesn't make sense to me.