Neither GrowSurf nor ERIN offers a free trial.
GrowSurf is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
ERIN is designed for Large Enterprises, Medium Business and Small Business.
Pricing for GrowSurf Starts at $775/Month whereas for ERIN Starts at $500/Month.
Some top alternatives to GrowSurf includes ReferralCandy, ReferralMagic, Tapfiliate, Incentivit, Referral Rock, TrueSaaS, Referral SaaSquatch, AppVirality, Ambassador Referral Marketing, InviteReferrals and ERIN.
Some top alternatives to ERIN includes RolePoint, ReferralCandy, ReferralMagic, Referral Rock, GrowSurf, Referral SaaSquatch, AppVirality, Ambassador Referral Marketing, InviteReferrals and Referral Stack.