Yes, both Google Meet and Probooking offer a Free Trial.
Google Meet is designed for Large Enterprises, Medium Business and Small Business.
Probooking is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Google Meet Starts at $6/User/Month whereas for Probooking Starts at $97Lifetime Access.
Some top alternatives to Google Meet includes Livestorm, Whereby, Zoom, Cisco Webex Meetings, GotoMeeting, TelebuJoin, Cisco Webex Teams, BlueJeans Virtual Meetings, VideoMeet, WorkHub Connect and Zip Conferencing.
Some top alternatives to Probooking includes Appointy, Set a Time, Cogsworth, OpusTime, Book Like A Boss, EasyCalendar, Office Tracker, My Work Scheduler, ClickBook, DaySchedule, TimeZest, Calendar and Zoho Booking.