Today I've casted a few votes in Stack Overflow using Stack Exchange android app (around 10 votes, I was actually looking for the Winterbash-2015 Wireless hat and I earned it). But when I switched to the Stack Overflow web-site and checked my profile the Votes Cast for the day shown as 1. (Actually that one vote was casted earlier today from the web-site itself). I think the votes I casted using stack exchange app is not reflected in the count and seems like a bug to me, please correct me If I'm wrong or I'm missing anything here.
I could be wrong, but it seems to me the vote count is cached. This is done to prevent massive loads on the database. I just voted on the web site and the number doesn't increment, while both votes I casted (one from the iOS app, which uses the same API, another from the web site) are visible in the votes tab.
I think you should wait a little longer, maybe half an hour or so, in order to see the vote count corrected.