LiveAgent offers Free Trial, but Sirena does not.
Sirena is designed for Individuals, Large Enterprises, Medium Business and Small Business.
LiveAgent is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Sirena Starts at $99/Month whereas for LiveAgent Starts at $15/User/Month.
Some top alternatives to Sirena includes ZoomInfo Chat, LiveAgent, LiveChat, DeskMoz, Zendesk Chat, Qonvo, Smartchat, JivoChat, Video Service Desk and Let's Talk.
Some top alternatives to LiveAgent includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, ManageEngine ServiceDesk Plus, Freshdesk, ClickDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Help Scout, LabiDesk, LiveChat, Zendesk Chat, LiveHelpNow and Little SaaS Communication.