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Alterable™ vs Emails for Supabase

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

Alterable™ compared with Emails for Supabase
DetailAlterable™ logo Alterable™ Emails for Supabase
What it doesDynamic Email Content & Real-Time Personalization Branded, production-ready Supabase auth email templates from your website URL
StageGrowing MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelNot given Free
PricingFree plan (Engage) with 10,000 impressions/month; Pro at $49/month with 500,000 impressions/month; Scale at $199/month with 2,500,000 impressions/month. About 15% discount on annual billing. Free during early access. Brand pack coming soon at $18 one-time per brand.
Key features
  • Countdown timers that tick in real time
  • Dynamic images personalized at open-time
  • Dynamic product picks per recipient
  • Local maps drawn for each reader's city
  • One-click surveys answered in the inbox
  • Scratch cards that reveal prizes
  • Animated slideshows in one GIF
  • REST API for automation
  • MCP server for AI assistants
  • Live preview with dark-mode toggle
  • Real GoTrue merge tags wired in automatically
  • Inlined CSS tested across email clients
  • Per-field edits and copy customization
  • One-click export to Supabase dashboard
  • Cross-client HTML compatibility for Outlook and other email clients
What makes it different
  • Content redraws at every open, not just when sent
  • No impact on email deliverability
  • Location personalization from existing ESP data
  • All seven elements on every plan including free tier
  • Only tool built specifically for Supabase auth emails, not a generic email builder
  • Automatic brand extraction from your website in minutes
  • Real merge tags pre-wired and ready to paste directly into Supabase dashboard
  • Cross-client tested HTML built by email experts
  • Completely free during early access
Community votes00
DR (Domain Rating by Ahrefs)25 +2 (up) since last check1 −1 (down) since last check
Trust Flow (Majestic)223
Citation Flow (Majestic)3410
Referring domains (Majestic)1831

5 details filled in for both companies.

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