Calculator
Peptide Calculator: PepFlow
iOS — Free
App Store (iOS)
4.78 / 5 · 316 ratings
Google Play (Android)
Not on Android
Peptide Calculator: PepFlow is a calculator tracking app available on iOS, priced as free. Get the right peptide dosage in seconds and track your shot's time so you never miss it. Simply enter your peptide information, see the optimal syringe size, and dosage, and save your favorite formula. It holds 4.78/5 on the App Store across 316 ratings. On paper it ships 3 of the 10 standard tracking features and 0 of the 5 genuinely-advanced ones we look for. Like most of the field, it leans on the same core set of features everyone else has.
Get the right peptide dosage in seconds and track your shot's time so you never miss it. Simply enter your peptide information, see the optimal syringe size, and dosage, and save your favorite formulas and cycles to your device. Visualize today’s doses with…— Peptide Calculator: PepFlow's own store listing
The verdict
Useful, but arguably a feature rather than a standalone app.
Core features
Reconstitution calculator
Injection-site rotation
Half-life curve
Apple Health / sync
An AI gimmick
Standard tracking features
Dose calculator
Reminders
Inventory
Weight tracking
Side effects
Progress photos
Cloud sync
Local privacy
Data export
Blends
Advanced features
0/5Claim Audit — Cross-checks marketing claims against actual cited research.
iMessage / SMS logging — Log a dose by texting it. No app-open required.
MCP server — Model Context Protocol endpoint so your LLM can read your stack.
Interaction checker — Flags stacking conflicts and contraindications.
Clinician dashboard — A real portal your provider can log into.