Neither Zembula nor Omnisend offers a free trial.
Zembula is designed for Large Enterprises and Medium Business.
Omnisend is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Zembula Starts at $3,000/Year whereas for Omnisend Starts at $16/Month.
Some top alternatives to Zembula includes Campaigner, Moosend, SMTP, Omnisend, Constant Contact, MailChimp, Campaign Monitor, GetResponse, Elastic Email, Emma, Elite Email, Elite Campaign, SendFox, 7Engage and Structure Pie.
Some top alternatives to Omnisend includes Outgrow, ActiveCampaign, CleverTap, Moosend, Drip, Klaviyo, MailChimp, ConvertKit, Zoho Marketing Automation, Ackwire, 7Engage, Structure Pie and Flodesk.