Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.
Open Contacts - Open Contacts is an advanced address book program for managing contact info of individuals and...
zcal - zcal is the fastest way to schedule every meeting for Free and make it personal.
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
TidyCal - Optimize your schedule with custom booking pages and calendar integrations
Free Address Book - In our contact management software you can store fast and easily name, phone numbers, birthdays, address, company name, city, mobile numbers, insurance and loan info, e-mail addresses.