Incentivate
Neither Shortwave nor Mailshouts offers a free trial.
Shortwave is designed for Large Enterprises, Medium Business and Small Business.
Mailshouts is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Shortwave Starts at $9/User/Month whereas for Mailshouts Starts at $8/Month when Billed Yearly.
Some top alternatives to Shortwave includes eGain Mail, Qualified, SmartReach.io, Mailshouts, Our Shared Inbox, Workvivo, InboxPro, Meco Web Reader, Superhuman, Zoho SalesInbox, Gmail and Loop Email.
Some top alternatives to Mailshouts includes SmartrMail, Mailjet, Inbox Mailers, Mailsend by 500apps, Qualified, SmartReach.io, Mailshake, Workvivo, Shout, Mailcoach and IFTTT.