Viral Loops vs Sender

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

Viral Loops compared with Sender
Detail	Viral Loops	Sender
What it does	The All-in-One Referral Platform Built for Growth	Email marketing platform for growing businesses
Stage	Not given	Established
Founded	Not given	2012
Based in	Not given	LT
Pricing model	freemium	freemium
Pricing	Not given	Not given
Key features	Template-based referral campaign builder AI-powered campaign customization Referral link tracking Flexible reward management Multiple reward triggers Landing page builder	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	Template-based approach inspired by billion-dollar brands AI learns your brand automatically No-code setup and installation Works on any website or form type	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)	76 no change since last check	84 no change since last check
Trust Flow (Majestic)	29	43
Citation Flow (Majestic)	45	53
Referring domains (Majestic)	2433	10122

4 details filled in for both companies.