Here's an app that slipped below the radar: RunPee. Yes, perhaps an oddly titled app, it's actually quite accurate to its purpose, which is to let you know the best time to take a bathroom break during the latest blockbuster movie at the cinemas.

The app is simple and to the point: it lists the latest films out in theaters, each film tells you the run time and three times to go during the movie. The first two "breaks" are positioned about 1/3 and 2/3 through the movie and provide cues to let you know that the scene is coming up.  While running back to the cinema, why not gander back at your phone and read what you're missing? Yup, someone has summarized the 4-5 minute interval you are given for you, so it'd be rude to not read it!

  • Every movie has a few scenes that either aren’t crucial to the plot, or can be easily summarized for you.
  • Every movie has a few minutes you can safely miss and not be lost when you sit back down.
  • We identify these times for you by watching the movie for ourselves.
  • RunPee provides you with both a cue to know when it's safe to leave, as well a summary of what you missed (no spoilers!).

RunPee adheres definitely adheres to the Metro design we love on Windows Phone, it's also fast and smooth to use, so we're more than pleased. Plus, this is actually useful, especially if you buy one of those "value" sodas like WPCentral reader Jim, who sent us this app reminder. (Thanks, Jim!)

The app is free and ad free in the Marketplace. You can pick it up here and have your bladder thank us later.