Protocol vs PepTracker
Simple peptide dose log
Which peptide tracking app is right for you?
Protocol wins on features. PepTracker wins on simplicity.
PepTracker is clean and easy to learn — but it's a dose logger, not a protocol tracker. No AI, no Apple Health, no supplement or habit tracking, no research website. Protocol does everything PepTracker does and then builds a complete system around it. If you're serious about optimizing your protocol — not just logging it — Protocol is the clear choice. Both are free to start.
| Peptide dose tracking | ✅ | ✅ |
| Peptide + Supplement + Habit in one protocol | ✅ Only app that does this | ❌ |
| Injection site body map | ✅ 3D front & back simultaneously | ❌ |
| Active Levels chart (all compounds) | ✅ All compounds on one timeline | ❌ |
| Titration auto-ramp | ✅ | ❌ |
| Custom injection zone labels | ✅ e.g. left knee repair zone | ❌ |
| AI Research Assistant | ✅ 50/month Pro | ❌ No AI features |
| AI Check-in Coach | ✅ Analyzes your actual data | ❌ No AI features |
| AI Stack Builder | ✅ Goal → full protocol | ❌ No AI features |
| Apple Health integration | ✅ Bidirectional | ❌ Not available |
| Daily check-in & wellness tracking | ✅ | ✅ |
| Progress photos (front/side/back) | ✅ | ❌ Not available |
| Navy method body fat % | ✅ | ❌ |
| Standalone research website | ✅ 73 compound profiles | ❌ No research site |
| PK curve modeler | ✅ 1, 4, 8, 12 dose models | ❌ Not available |
| On-device only / no accounts | ✅ No cloud, no sign-up | ❌ Requires account |
| Stealth Mode | ✅ Changes app icon | ❌ |
| Export for healthcare provider | ✅ Timestamped PDF/CSV | ❌ |
| Bloodwork & lab tracking | ✅ v3.0.0 | ❌ |
| Protocol cost tracking | ✅ v3.0.0 | ❌ |
| Compound interaction checker | 🔜 Coming soon | ❌ |
| Stack Score & radar chart | ✅ v3.0.0 — AI-powered | ❌ |
| Home screen widgets | 🔜 Coming soon | ❌ |
- ✓Only app combining peptides, supplements & habits in one protocol
- ✓AI Check-in Coach analyzes your actual logged data — not generic advice
- ✓Active Levels chart shows all compounds simultaneously on one timeline
- ✓3D body map with front & back views and custom injection zone labels
- ✓On-device only — no account, no cloud, nobody has your data
- ✓Stealth Mode changes the app icon for complete discretion
- ✓Auto 14-day Pro trial — no opt-in · $69.99 lifetime option
- ✓81 compound research profiles at protocolapp.health
- ✓Bidirectional Apple Health — reads AND writes
- ✓Extremely simple — minimal learning curve
- ✓Clean, fast UI focused purely on dose logging
- ✓Good for users who want basic tracking without complexity
- ✓Free to use with core features
Pricing comparison
Frequently asked questions
Is Protocol harder to use than PepTracker?
Protocol has more features but the onboarding wizard walks you through setup in under 5 minutes. Most users are logging their first dose within 10 minutes of download. The added complexity pays off immediately — you get AI research, active levels charts, and a complete protocol view that PepTracker can't offer.
Can Protocol replace a spreadsheet for peptide tracking?
Yes — and then some. Protocol handles the reconstitution math, injection site rotation, dose scheduling, and pharmacokinetic curves that spreadsheets require manual calculation for. The AI Research Assistant answers questions your spreadsheet can't.
Does PepTracker have an AI assistant?
No. PepTracker is a straightforward dose logger without AI features. Protocol includes three distinct AI tools: the Research Assistant, the Check-in Coach, and the AI Stack Builder.
Which app is better for beginners?
Both work for beginners. PepTracker's simplicity can feel less overwhelming at first. But Protocol's 15 protocol templates and AI Stack Builder actually make it easier to get started correctly — you describe your goal and the AI builds your first protocol for you.
Try Protocol free
Every Pro feature, free for 14 days. No account. No credit card. Your data never leaves your device.