Yes, both Twilio Flex and Telnyx offer a Free Trial.
Twilio Flex is designed for Large Enterprises and Medium Business.
Telnyx is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Twilio Flex Starts at $1/User whereas for Telnyx Starts at $1per Number.
Some top alternatives to Twilio Flex includes CometChat, CloudTalk, Five9, 3CX, Genesys PureConnect, MSG91, Infobip, Cloudonix, CommPeak, CloudContactAI and Messenger Communication Platform.
Some top alternatives to Telnyx includes CometChat, Bandwidth, Plivo, Twilio Flex, 4PSA VoipNow, Flowroute, IMIconnect, MSG91, Commio, CommPeak and CloudContactAI.