Yes, both Heymarket and Skipio offer a Free Trial.
Heymarket is designed for Large Enterprises, Medium Business and Small Business.
Skipio is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Heymarket Starts at $29/Month when Billed Yearly whereas for Skipio Starts at $89/Month when Billed Yearly.
Some top alternatives to Heymarket includes Zoho Campaigns, SMS Gateway Hub, Sendchamp, Zipwhip, SendHub, SMS.to, SupportChamp and SMS-iT.
Some top alternatives to Skipio includes iSalesCRM, SlickText, ExpertTexting, TextToHire, Senderium, MOBtexting, SimpleTexting, MessageDesk, PowerTextor and Buddy Texts.