Our Pick 2026
Protocol — Peptide Tracker 5.0 ⭐ · 14 days Pro free · iOS + Android
Download Free →
2026 Comparison · Updated May 2026

Best Peptide Tracker App 2026 —
The Data Says Protocol.

We evaluated every major peptide tracker across eight criteria. Protocol scored 8/8. The nearest competitor scored 3/8. Here's why the gap is that wide.

The 2026 Scorecard

Protocol peptide tracker 3D injection site map showing today and previous injection sites

Tracks every site — shows when each zone was last used, suggests the next

Feature
Protocol
PeptIQ
PepTracker
Pep AI
PepCalc
Dose logging
✅
✅
✅
✅
❌
Reconstitution calc
✅
❌
❌
❌
✅
3D body map
✅
❌
❌
❌
❌
Stack-aware AI
✅
❌
❌
~
❌
Interaction checker
✅
✅
❌
❌
❌
Bloodwork tracking
✅
❌
❌
❌
❌
Habits + supplements
✅
❌
❌
❌
❌
On-device privacy
✅
❌
❌
❌
❌
Score
8/8
3/8
2/8
2/8
1/8

The 8/8 score isn't close. PeptIQ at 3/8 is the nearest competitor and wins only because it has an interaction checker and basic logging. Protocol has an interaction checker and seven other things PeptIQ doesn't. Full comparison: How to Choose a Peptide Tracker →

What Moved in 2026

Protocol shipped v3.0.0

The May 2026 update added Android support (Google Play), stack-aware AI across six touchpoints, and a reverse reconstitution calculator. No other tracker shipped anything comparable this year. The feature gap is wider now than it was in January.

PepTracker hasn't shipped a major update since 2024

Still iOS only. Still no calculator, no body map, no AI, no bloodwork. The product that defined the category for years is no longer the most capable option. It's a reliable logger if you don't need anything beyond logging.

The protocol complexity problem

In 2024 most users ran one compound. In 2026 they're running GLP-1 alongside peptides alongside TRT alongside supplements and tracking habits and bloodwork. The tool that was built for 2024 protocols doesn't fit 2026 protocols. Protocol was built for the full stack.

The 8/8 Pick — Free for 14 Days

Pro unlocks at install. No opt-in. No credit card. No commitment.

Download on the App Store Get it on Google Play

No account · On-device only · iOS + Android

What is the best peptide tracker app in 2026?
Protocol scores 8/8 across every evaluation criterion — the only tracker that wins simultaneously on AI quality, reconstitution calculator, 3D injection site tracking, bloodwork monitoring, privacy, Android support, multi-compound support, and supplement/habit integration. 5.0 App Store rating.
Is there a peptide tracker on Android?
Yes. Protocol launched on Android in May 2026 with full feature parity to iOS. PepTracker, PeptIQ, and PepCalc are iOS only. Pep AI is on Android but is AI-forward with limited tracking depth.
Is Protocol better than PepTracker?
On logging fundamentals: comparable. On everything beyond logging: Protocol wins every category. Full breakdown: Protocol vs PepTracker →

Buying guide: How to Choose a Peptide Tracker →

Reviews: Peptide Tracker App Reviews →

Android: Android Peptide Tracker App →

Also see: peptide tracker reviews → · top-rated peptide apps →