Yes, both Presence and Syncify offer a Free Trial.
Presence is designed for Medium Business and Small Business.
Syncify is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Presence Starts at $6/User/Month whereas for Syncify Starts at $4.99/User/Month.
Some top alternatives to Presence includes Yac, Sodasync, WTEAM, Branch, Werk, LiveVoice, VoicePing, Echoes, NinjaOne (NinjaRMM), Remo Virtual Office and GoTo Resolve.
Some top alternatives to Syncify includes CometChat, Grapevine, CollaborateCloud, AirSend, Vocantas Communicate, Twilio Flex, SPACE Channel, Griot, NokNok, Teamplify and ZEGOCLOUD.