Yes, both TOPOL.io and Constant Contact offer a Free Trial.
TOPOL.io is designed for Large Enterprises, Medium Business and Small Business.
Constant Contact is designed for Large Enterprises, Medium Business and Small Business.
The starting price of TOPOL.io begins at $10/month when yearly, while pricing details for Constant Contact are unavailable.
Some top alternatives to TOPOL.io includes Campaigner, Moosend, SMTP, Omnisend, Constant Contact, Campaign Monitor, GetResponse, MailerLite, eFlyerMaker, Groupmail, Mail Blaze, SendFox, Speedy Newsletter, SpeedyNewsletter, Emaily and Dragit.
Some top alternatives to Constant Contact includes Campaigner, Moosend and SMTP.