Checkmate for Foursquare lets you check in automatically to your favorite venues. Log in and pick your favorites. Checkmate will run in the background and automatically check you in when you are close enough to a venue. No more awkward silence as everyone in your group pulls out their phone to check in!

Features:
- Maintain control by only choosing venues you want to check in to.
- Checkmate won't check you into a location if you do so manually.
- Share your auto-checkins with Twitter and Facebook.
- Share with friends or check in off the grid
- GPS mode for more accurate location tracking and checkins

Checkmate works on the iPhone 3GS and iPhone 4 running on iOS 4.

Reviews: Rated 4/5 by Appsafari!

Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.