My dentist, a registered Republican, did not vote in the last midterm elections, in 2014.

But the owner of my local bookstore, a registered Democrat, did vote then. So did my accountant, who is not registered with either party.

I know these details not because the dentist, the bookseller and the accountant volunteered to share their voting histories with me. I found out from VoteWithMe and OutVote, two new political apps that are trying to use peer pressure to get people to vote Tuesday.

The apps are to elections what Zillow is to real estate — services that pull public information from government records, repackage it for consumer viewing and make it available at the touch of a smartphone button. But instead of giving you a peek at house prices, VoteWithMe and OutVote let you snoop on which of your friends voted in past elections and their party affiliations — and then prod them to go to the polls by sending them scripted messages like “You gonna vote?”