Yes, both Vocus.io and Grapher offer a Free Trial.
Vocus.io is designed for Large Enterprises, Medium Business and Small Business.
Grapher is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Vocus.io Starts at $5/Month whereas for Grapher Starts at $50/Year.
Some top alternatives to Vocus.io includes Bulky, OutreachPlus, SocialMailer, Use Outreach, Qualified, SmartReach.io, Workvivo, SellScale, InboxPro, Sigmail, Go Follow-Up and IFTTT.
Some top alternatives to Grapher includes VizualSurvey, SAS Advanced Analytics, Easy Insight, Tableau Server, dataSights, Chartbrew, Qualified, Workvivo, DataSquirrel, Living Charts, Charts Factory and SharpDash.