Yes, both Push Monkey and VWO Engage offer a Free Trial.
Push Monkey is designed for Individuals, Medium Business and Small Business.
VWO Engage is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Push Monkey Starts at $16/Month when Billed Yearly whereas for VWO Engage Starts at $99/Month.
Some top alternatives to Push Monkey includes VWO Engage, PushAssist, PushAlert, Push.World, TITANPush, Pushwoosh, WonderPush, NotificUp, Notificare, PushPushGo and PushNinja.
Some top alternatives to VWO Engage includes OneSignal, PushBots, PushAlert, Push.World, PushPro, TITANPush, Notificare, PushNinja, SmartPush and Notificationpro.