It allows you to track the online activity duration of the people whose number you add on Whatsapp. You can find the time your kids spend on Whatsapp and check if they sleep at night. So it gives you complete parental control. You can guess whether your lover is talking to someone else by looking online. You can compare the online time of two people. With the timeline you can see exactly when it enters and exits. You can receive notifications instantly when online or offline. You can analyze by seeing the time spent on various charts online.