Yes, both Heymarket and Zoho Campaigns offer a Free Trial.
Heymarket is designed for Large Enterprises, Medium Business and Small Business.
Zoho Campaigns is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Heymarket Starts at $29/Month when Billed Yearly whereas for Zoho Campaigns Starts at $3/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 Zoho Campaigns includes Pipedrive, HubSpot CRM, Campaigner, Close, Moosend, SMTP, ActiveCampaign, Omnisend, Constant Contact, MailChimp, Campaign Monitor, GetResponse, MailerLite, Emma, FreshMail, SendFox and Zoho Marketing Automation.