Yes, both 10to8 and Ovatu Manager offer a Free Trial.
10to8 is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Ovatu Manager is designed for Large Enterprises, Medium Business and Small Business.
Pricing for 10to8 Starts at $9.60/Month when Billed Yearly whereas for Ovatu Manager Starts at $15/Month.
Some top alternatives to 10to8 includes Appointy, Acuity Scheduling, Setmore, Calendly, Square Appointments, Cogsworth, Book Like A Boss, Scheduly, ClickBook, DaySchedule, Appointmind, i-Scheduling for Appointments and CatchApp Bookings.
Some top alternatives to Ovatu Manager includes Appointy, Setmore, Calendly, Square Appointments, SimplyBook.me, Cogsworth, Book Like A Boss, Scheduly, ClickBook, Appointmind, i-Scheduling for Appointments, CatchApp Bookings and Zoho Booking.