Yes, both TeamViewer and SysAid offer a Free Trial.
TeamViewer is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
SysAid is designed for Large Enterprises, Medium Business and Small Business.
The starting price of TeamViewer begins at $9/month when yearly, while pricing details for SysAid are unavailable.
Some top alternatives to TeamViewer includes NinjaOne (NinjaRMM), GoToMyPC, RemotePC, VNC Connect, RemoteToPC, AnyDesk, Splashtop Remote Support, LogMeIn Pro, Splashtop Business Access, FixMe.IT, LogMeIn Rescue and GoTo Resolve.
Some top alternatives to SysAid includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Jira Service Desk, Freshdesk, LiveAgent, HelpDesk, Jitbit Helpdesk, TOPdesk, ReadyDesk, Milldesk, Sitehelpdesk, Spiceworks Help Desk and HESK.