App crash – Data Tracking - Monitor data in Real Time Review

Just started using it today. The app should allow you to turn off limits for wifi if you are not being charged for wifi. When you set the billing start date and/or the limit to zero on wifi, the app then crashes when you tap on the wifi screen. Would be nice if you could change the date format. This is just initial findings and I need to let it run for some weeks before I can say more.
Review by Das Foot on Data Tracking - Monitor data in Real Time.