Neither Klynk nor SMTP offers a free trial.
Klynk is designed for Large Enterprises, Small Business and Medium Business.
SMTP is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of Klynk begins at $19.00per month when Billed Yearly, while pricing details for SMTP are unavailable.
Some top alternatives to Klynk includes Campaigner, Moosend and SMTP.
Some top alternatives to SMTP includes Campaigner and Moosend.