Yes, both Boost and SmartWindows offer a Free Trial.
Boost is designed for Individuals, Large Enterprises, Medium Business and Small Business.
SmartWindows is designed for Individuals, Medium Business and Small Business.
Pricing for Boost Starts at $19/Month whereas for SmartWindows Starts at $19.99/Month.
Some top alternatives to Boost includes Campaigner, Moosend, SMTP, Omnisend, Email List Verify, Constant Contact, Emma, KIRIM.EMAIL, FreshMail, MailOptin, Inbox Mailers, Listagram, SendFox, OptinMagic and Maildroppa.
Some top alternatives to SmartWindows includes Qualified, Workvivo, WebTool, Shells.com, Shift, Moderne, Paper Workspace, Desktop.com, WorkDesk, IFTTT, Consider and Basaas.