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GrowSurf vs Anypost

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 Anypost
DetailGrowSurfAnypost
What it doesReferral program software that turns your customers into your lowest-cost growth channel Transactional and broadcast email through a simple API, at a fraction of legacy email-API pricing
StageEstablished Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelsubscription freemium
PricingReferral 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 Free tier with 3,000 emails/month. Paid plans: Starter $20/mo (100,000 emails, then 20¢/1,000), Growth $40/mo (400,000 emails, then 10¢/1,000), Scale $80/mo (1,000,000 emails, then 8¢/1,000). High volume customers receive rates as low as 5¢/1,000.
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
  • 8 SDKs (TypeScript, Python, PHP, Ruby, Go, Rust, Java, C#)
  • HTTP API and SMTP relay
  • Markdown email rendering
  • AI template generator
  • Email event tracking
  • Webhooks and events API
  • Tags and campaign filtering
  • One-click unsubscribe handling
  • Automatic DKIM and SPF
  • Batch sending and idempotency keys
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
  • Markdown email writing eliminates HTML complexity
  • AI-powered template generation from plain language descriptions
  • Modern bare metal infrastructure owned and operated directly
  • Fraction of legacy email API pricing
  • Unified event system across all sending methods
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)74 no change since last check14 no change since last check
Trust Flow (Majestic)2720
Citation Flow (Majestic)3531
Referring domains (Majestic)1525133

5 details filled in for both companies.

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