RunKeeper 3.1 for iPhone was launched with few important updates to make getting and staying fit even easier. Included in this release are such features as:

• Weight Logging and Visualization – making it easier to input and track your weight, all with reminders and support for compatible scales.
• In-Activity Settings – manage visual preferences, audio cues, auto-pause and more, while in the midst of tracking a workout.
• Night Mode theme – which is made for low light situations and folks who love darker themes.