Two Factor Auth (2FA) - List of websites and whether or not they support 2FA

Callblock - The first app to block telemarketers automatically in iOS

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.

Rapid 2FA - A painless way to add two-factor authentication to your site

SpoofCard - Disguise your Caller ID