When I go into the iOS app, it often takes a little while to catch up with what reviews are pending.
I usually Skritter in the morning and get my queue down to about 0 - 15 remaining, but when I return in the afternoon, it is often still at 3 reviews pending and can take up to 5 minutes to realize that it should be 40!
Is there a way I can "force" it to recalc before I start skrittering? Yesterday it added 4 or 5 words before the recalc was done, and I'm not a fan of that... adding words only when my reviews are all settled helps me keep the workload managable.