The Best Peptide Tracker
for Android

Why Android Users Had No Options Until Now

Before Protocol's Android launch, every major peptide tracker was iOS only. PepTracker, Dose, PeptIQ, and PeptideCalc all require an iPhone. The peptide tracking category was built by iOS developers for iOS users — Android's roughly 45% of the US smartphone market was completely unserved by any capable native tracking app.

Protocol launched on Android in May 2026 with full feature parity to iOS — not a limited port or stripped-down companion app. The complete suite: reconstitution calculator with Custom Draw mode, PK half-life plotter for 22 compounds, TRT ester calculator, stack cost calculator, 3D injection site body map, bloodwork tracking, AI research features, and 81-compound library. Every iOS capability runs on Android.

What Protocol on Android Includes

• Reconstitution Calculator + Custom Draw
  Standard forward calculation and the reverse mode that works backwards from target draw units to BAC water volume. The only calculator on Android with both modes.
• PK Half-Life Plotter
  Blood concentration curves for 22 compounds. Dose superposition math. Up to 4 compounds simultaneously. No other Android app has this.
• Injection Site Tracking
  3D body map with rotation history. Tracks every site used and shows when each was last injected. Prevents lipohypertrophy from repeated-site use.
• Bloodwork Logging
  Full panel tracking for TRT users: Total T, Free T, Estradiol sensitive, Hematocrit, SHBG. Trends over time alongside injection history.
• AI Research Features
  6 AI touchpoints including compound research, stack analysis, injury protocol suggestions, and daily check-in coaching.