About PepStack
Built by researchers, for researchers.
Our mission
PepStack exists to make peptide research safer and more accessible. We believe that anyone who works with peptides -- whether in a research lab, a clinical setting, or as a self-experimenting biohacker -- deserves precision tools that eliminate dosing errors.
Our goal is to be the most trusted peptide calculator and protocol tracker on the market. Every feature we build starts with the same question: does this make dosing safer and more precise?
Why PepStack exists
Peptide reconstitution math is deceptively complex. You need to know your vial size (in milligrams), the volume of bacteriostatic water you added (in milliliters), your desired dose (in micrograms or milligrams), and your syringe type (insulin U-100, U-40, or standard). One miscalculation means an incorrect dose -- either wasting expensive product or, worse, injecting the wrong amount.
Before PepStack, researchers relied on spreadsheets, handwritten notes, or generic online calculators that didn't account for syringe types or peptide-specific protocols. PepStack consolidates everything into a single, purpose-built iOS app with a library of 34 peptides, pre-built titration protocols, and tools no calculator app has ever offered.
Medical Disclaimer
PepStack is a calculator and tracking tool for research and educational purposes only. It is not a medical device. PepStack does not provide medical advice, diagnosis, or treatment recommendations.
Always consult a qualified healthcare provider before using any peptide or injectable substance. PepStack is not responsible for any adverse effects or outcomes resulting from the use of information provided by the app.
Peptide research and self-experimentation carry inherent risks. Users assume full responsibility for their actions.
Built with modern technology
PepStack is a native iOS app built with Apple's latest frameworks.
SwiftUI
Native iOS interface
SwiftData
On-device persistence
HealthKit
Health data integration
watchOS
Apple Watch companion
CloudKit
Secure sync
Firebase Analytics
Anonymous usage insights