ProtocolEngine.io

Simple pricing

Most of ProtocolEngine is free. Create an account to save your progress. Go Premium for the full research experience.

Visitor

No account needed

  • Browse all protocols, supplements, and habits
  • Supplement tier list with evidence grades
  • Research articles and weekly digests
  • Interaction checker
  • Protocol quiz
Free account

$0/forever

  • Everything visitors can access
  • Save protocols to your dashboard
  • Build and track your supplement stack
  • Weekly evidence digest email
  • 3 AI advisor questions per day
  • Bookmark articles and research
Create free account
Premium

$12/month

or $99/year (save 31%)

Everything in Free, plus:

  • Full study-level evidence breakdowns
  • Unlimited AI advisor
  • Stack analyzer with gap analysis
  • Protocol builder with interaction warnings
  • Evidence alerts when your supplements get new research
  • Calendar integration for protocol scheduling
  • Priority access to new features
Start free, upgrade anytime