Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Xmind - Xmind is a brainstorming and mind mapping application.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.