Bixby - Advanced AI voice assistance for Samsung devices
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Mycroft.AI - Mycroft is the world’s first open source assistant.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
vokul - 100% Handsfree Voice Control App for iOS Devices - Siri Alternative
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.