Simple pricing, powerful tools
Start free with the calculator. Upgrade to Pro when you need the full research toolkit.
Free
Get started with the essentials
- 5 peptides
- Reconstitution calculator
- 1 protocol slot
- Basic injection site tracking
- Light & Dark themes
Pro
Full access for serious researchers
- All 34 peptides
- Unlimited protocols
- Advanced injection site rotation
- GLP-1 titration protocols
- Journal & symptom tracking
- AI-powered insights
- Health dashboard
- Apple Watch companion
- OLED dark theme
- Priority support
Feature comparison
| Feature | Free | Pro |
|---|---|---|
| Peptide library | 5 peptides | 34 peptides |
| Reconstitution calculator | ||
| Protocol slots | 1 | Unlimited |
| Injection site tracking | Basic | Advanced with rotation |
| GLP-1 titration | ||
| Journal | ||
| AI insights | ||
| Health dashboard | ||
| Apple Watch | ||
| Themes | Light & Dark | Light, Dark & OLED |
| Bilingual (EN/ES) |
Frequently asked questions
How does billing work?
All subscriptions are managed through Apple. You subscribe directly in the app via the App Store. Apple handles billing, renewals, and cancellations.
Is there a free trial?
Yes. PepStack Pro includes a 7-day free trial. You won't be charged until the trial ends, and you can cancel anytime before that.
Can I cancel anytime?
Absolutely. Cancel your subscription at any time through your Apple ID settings. You'll retain Pro access until the end of your current billing period.
Is there a yearly plan?
Yes. PepStack Pro is available at $29.99/year, saving you over 50% compared to the monthly plan.
What happens if I cancel Pro?
You'll revert to the Free tier. Your data is preserved -- you just lose access to Pro features until you resubscribe.
Start dosing with precision
Download PepStack and subscribe to Pro directly in the app.