Until recent news involving the Signal app, it was a relatively unknown messaging app compared with WhatsApp to many nontechnical users.

WTOP’s Data Doctors compares Signal and WhatsApp to take a look at whether it’s worthwhile to make a switch from one messaging app to another.

Q: What’s the difference between Signal and WhatsApp, and should I switch? A: Until recent news involving the Signal app, it was a relatively unknown messaging app compared to WhatsApp to many ...