From Nearby Buddy Finder:
Find gay, bi, or curious guys on your iPhone, iPod touch, or iPad with Grindr. Fast, fun, and free, it's the place for gay, bi, or curious men to hang out with the same sex. Grindr is the largest all male location based network in the world. Over 600,000 men globally are part of the Grindr Network, with 2,000 new guys joining everyday. Grindr is a convenient location-based app that works with your iPhone GPS or iPod touch and iPad Wi-Fi to connect you to nearby men. It's easy to use and completely discreet. You don't need an account to use Grindr. Simply launch Grindr, upload an optional photo & profile details, and browse for men in your area who want to chat and meet. Grindr is 100% free. There is no cost to text message guys in Grindr, and it's a free download on iTunes. Grindr allows males 18 years and older only. You should not post photos that show nudity or depict sex.