Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Castle - The easiest way to protect your users from getting hacked
Hiya - Know who's calling or texting and block spammers on Android
Mail Dump - Powerful Extensions for email addresses extracting, verifying and finding
Kyte - India's first AI powered SMS inbox
Credo360 - Figure out who to trust by looking at a social credit score