GrowSurf vs Sender

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

GrowSurf compared with Sender
Detail	GrowSurf	Sender
What it does	Referral program software that turns your customers into your lowest-cost growth channel	Email marketing platform for growing businesses
Stage	Established	Established
Founded	Not given	2012
Based in	US	LT
Pricing model	subscription	freemium
Pricing	Referral programs: Startup plan $125/mo billed yearly (or $179/mo monthly) for up to 2,500 participants; Business plan $314/mo billed yearly (or $449/mo monthly) for up to 10,000 participants. Affiliate programs: Free plan at $0/mo plus 3% success fee on referral revenue. All plans include 14-day fr	Not given
Key features	Automatic link generator Copy and paste integration Fast setup time Fully white-labeled AI-powered optimization Automatic rewards Flexible reward types REST API and SDKs Analytics dashboard	Email automation workflows SMS marketing campaigns Landing page builder Segmentation and personalization Transactional emails via API and SMTP A/B testing Analytics and reporting Popup and signup forms
What makes it different	Launch in days, not weeks without heavy engineering Pricing based on participants, not total user base Trusted by healthcare, fintech, and software teams 312% average return on investment	Unified platform for email, SMS, and transactional messages
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	74 no change since last check	84 no change since last check
Trust Flow (Majestic)	27	43
Citation Flow (Majestic)	35	53
Referring domains (Majestic)	1525	10122

6 details filled in for both companies.

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