Yes, both askneo and Heymarket offer a Free Trial.
askneo is designed for and Small Business.
Heymarket is designed for Large Enterprises, Medium Business and Small Business.
Pricing for askneo Starts at $25/Month when Billed Yearly whereas for Heymarket Starts at $29/Month when Billed Yearly.
Some top alternatives to askneo includes Zoho Campaigns, EZ Texting, ExpertTexting, MOBtexting, SimpleTexting, TextMagic, Beetexting, Buddy Texts and Textline.
Some top alternatives to Heymarket includes Zoho Campaigns, SMS Gateway Hub, Sendchamp, Zipwhip, SendHub, SMS.to, SupportChamp and SMS-iT.