Yes, both Certero and Atera offer a Free Trial.
Certero is designed for and Large Enterprises.
Atera is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Atera begins at $129/user/month when monthly, while pricing details for Certero are unavailable.
Some top alternatives to Certero includes Atera, SuperOps RMM and NinjaOne (NinjaRMM).
Some top alternatives to Atera includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, ConnectWise Control, Freshservice, ManageEngine Desktop Central, Freshdesk, Motadata HelpDesk, HelpDesk, Jitbit Helpdesk, Syncro, ManageEngine OpManager MSP, Datto RMM, ConnectWise Automate and NinjaOne (NinjaRMM).