Calendar.AI - Discover everything about the people and companies you meet

Calendly - Say goodbye to phone and email tag for finding the perfect meeting time with Calendly. It's 100% free, super easy to use and you'll love our customer service.

Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.

Planist - Schedule meetings in an easy way Planist can connect with your google calendar to automatically check availability and help you connect with your best contacts, prospects, and clients.

SavvyCal - A scheduling tool both the sender and the recipient will love.

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.