Groupmail offers Free Trial, but Letterloop does not.
Letterloop is designed for Large Enterprises, Medium Business and Small Business.
Groupmail is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Letterloop begins at $5/Month, while pricing details for Groupmail are unavailable.
Some top alternatives to Letterloop includes Constant Contact, Groupmail, TechValidate, Snackeet, TypeJust, Speedy Newsletter, Bulletin, NoCode Newsletters, microletter and Smore.
Some top alternatives to Groupmail includes Campaigner, Moosend and SMTP.