Pricing
Pricing.
Calculator and library, free. Everything else, Pro.
Free
Reconstitution calculator + 80-peptide library. The math, the citations, the rotation map. Free for life. No signup needed.
- All 3 calculator modes (dose→units, units→BAC, vial overview)
- Full peptide library with citations + evidence tiers
- Half-life data + typical dose ranges
- Injection site rotation reference
- No card required
Pro
or $89/yr — save 38%
Agonist remembers everything and shows you what it means. 7-day free trial. Card required. Cancel anytime.
- Everything Free, plus everything below
- Vial registration + reconstitution memory (concentration, expiry, stability)
- Dose logging with site rotation + cooldown enforcement
- Today dashboard — what to pin, where, how much
- Symptom + sleep + appetite + skin tracking
- Progress photo upload (front/side/back, date comparisons)
- Lab upload + trend charts
- Half-life + blood-level forecast charts
- The "What Changed?" timeline — connects doses, symptoms, vials, labs into one story
- Clinician PDF export
- Multi-protocol management (run multiple cycles)
- Priority support
Coach
Monthly only for now
Pro + AI pattern recognition. The detective tier. 7-day free trial. Card required.
- Everything Pro
- AI surfaces patterns: "Nausea increased 18-30h after your last 3 tirzepatide doses"
- Multi-protocol side-by-side comparison
- Stack interaction review with citation tier
- Lab change detection: "ALT rose after dose change on May 8"
- Early access to new features
- Priority support + direct line
What if I cancel during the trial?
Nothing is charged. You revert to Free (calculator + library only).
When can I see the app?
Sign up → 7-day trial starts immediately. Full app access for the trial period.
Why card required upfront?
Filters tire-kickers and makes pricing honest. Cancel anytime in the billing portal — Apple-style, no friction.
Annual or monthly?
Annual saves 38% ($89 vs $144). 7-day cancel window applies to both. Monthly for flexibility, annual for committed users.