HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.
Marketo - Marketo's powerful marketing automation software helps marketers master the art & science of digital marketing to engage customers and prospects.
CallerSmart - CallerSmart is an application that is basically used for the purpose of looking up mystery phone numbers for free.