With the Obama app, getting a glimpse of your neighbor’s political affiliation can take seconds.

While The New York Times dubbed the app “the science-fiction dream of political operatives,” some of the voters who appear in the app are less enthusiastic about it.

“I do think it’s something useful for them, but it’s also creepy,” said Lori Carena, 58, a long-time Brooklyn resident, when she was shown the app. “My neighbors across the street can know that I’m a Democrat. I’m not sure I like that.”

It’s unclear if the app displays all registered Democrats who live in a certain area, or only a subset of voters President Obama’s campaign is trying to reach.