The 2026 Rankings
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1
Protocol — The 2026 Upset
Released 2025. 5.0 stars. Stack-aware AI at six touchpoints — not a chatbot, it knows your reconstitution math and dose history. Custom Draw calculator (the only reverse reconstitution tool in the category). 3D injection body map. 81-compound research library. Bloodwork tracking for 80+ markers. Compounds, supplements, and habits unified in one protocol. On-device only, no account required. iOS + Android. The peptide tracker built for people running serious stacks.
14 days Pro free · No card -
2
PeptideCalc.io
Best standalone calculator. One-time purchase. Does the reconstitution math cleanly. No Custom Draw mode, no dose logging, no tracking. Free alternatives have caught up.
Missing: Custom Draw, logging, Android -
3
PeptIQ
Solid interaction checker. 4.5 stars. iOS only. Reliable logging. Stops at logging and interactions — no calculator, no body map, no bloodwork.
Missing: Calculator, body map, bloodwork, Android -
4
PepTracker
The category standard since 2023. 4.7 stars, iOS only. Reliable logger. No AI, no calculator suite, no body map, no bloodwork. No major update since 2024.
Missing: AI, calculator, body map, Android -
5
Pep AI
AI-forward. Natural language queries answer general questions but don't know your actual stack. Tracking is secondary to the chatbot feature.
Missing: Stack-aware AI, calculator, body map, bloodwork
The #1 Pick — Free for 14 Days
Pro unlocks automatically. No opt-in. No credit card needed.
No account · On-device only · iOS + Android