4. Sit or Squat

Sit or Squat iPhone app-NYC

Sponsored by Charmin, this app has a database of over 100,000 public bathrooms in New York City, letting you find the nearest spot when you’re out an about and need to answer nature’s call. Users can even rate the bathrooms’ quality “sit” or “squat.” This app, however, doesn’t address the questionable bathrooms in the subway system, which you can read about here.