It's worst app. It is killing me last one month. Since I start using this app, facing many issues on this app. 1. When incoming calls, I could see calling person name, only call attend button is available, out of 10, facing 7 times ,2. At that time, when I try search recent call history & contact list, it is simply empty, it will appear after some mins or after restart. FYKI, i have done factory reset, updated my software in service centre already, even I have latest version app.