Yes, both SendGrid and SuperSaaS offer a Free Trial.
SendGrid is designed for Large Enterprises, Medium Business and Small Business.
SuperSaaS is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of SuperSaaS begins at $8/Month, while pricing details for SendGrid are unavailable.
Some top alternatives to SendGrid includes SMTP, Campaigner and Moosend.
Some top alternatives to SuperSaaS includes Appointy, Calendly, Square Appointments, SimplyBook.me, Cogsworth, Book Like A Boss, Scheduly, SnapAppointments, hitAppoint, Booking Social, i-Scheduling for Appointments and Zoho Booking.