TrapCall is described as 'An application for the purpose of getting the caller IDs and unmasking the blocked calls. It is a way for getting the identity of those numbers that always shown as private numbers or unknown' and is a reverse phone lookup app in the network & admin category. There are more than 25 alternatives to TrapCall for a variety of platforms, including Android, iPhone, Web-based, Android Tablet and iPad apps. The best TrapCall alternative is Truecaller, which is free. Other great apps like TrapCall are Should I Answer?, Phone.Report, Orange Phone and Sync.ME.