The iPassion app is perfect for couples trying to keep things steamy when they’re miles apart. It offers multiple choice quizzes, with questions that are sexy and intimate, like those about turn-ons and favorite positions. In addition to answering questions to tell your partner a bit about what you’re into, you can also quiz each other, and each time you get an answer correct, you collect points. A certain amount of points can be cashed in for a “hot favor.” There is also a chat feature where you can share private conversations. It’s about as good as foreplay gets when you’re in different time zones.