TOPOL.io offers Free Trial, but SMTP does not.
TOPOL.io is designed for Large Enterprises, Medium Business and Small Business.
SMTP is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of TOPOL.io begins at $10/month when yearly, while pricing details for SMTP 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 SMTP includes Campaigner and Moosend.