Yes, both Twilio Frontline and Twilio Flex offer a Free Trial.
Twilio Frontline is designed for Large Enterprises, Medium Business and Small Business.
Twilio Flex is designed for Large Enterprises and Medium Business.
Pricing for Twilio Frontline Starts at $20/User/Month whereas for Twilio Flex Starts at $1/User.
Some top alternatives to Twilio Frontline includes Apollo.io, AroundDeal, CrankWheel, ZoomInfo Engage, Microsoft Dynamics 365 for Sales, Salesinteract, EngageBay Sales CRM, SalesCRM, SalesLoft, Salesvue, Closely, RingCentral Engage Digital, SalesReach and SalesHandy.
Some top alternatives to Twilio Flex includes CometChat, CloudTalk, Five9, 3CX, Genesys PureConnect, MSG91, Infobip, Cloudonix, CommPeak, CloudContactAI and Messenger Communication Platform.