Basically, True ID caller is an app that identifies who is calling you. Such caller identification is useful to thwart telemarketers, spam calls, and fraudsters. Caller ID Name & Location uses contact information sourced from network providers, and data from other users to categorize callers into Spam or Safe callers. The color of the incoming caller's contact tells you whether it's spam or not. A blue contact card usually means it's safe, while a red contact card means you shouldn't pick up. I