Alethea vs Protocol: Which Peptide Tracker Fits?
*Updated September 8, 2026*
Short answer: Pick Protocol if you want a native iOS/Android logger that stays on-device (no account / no cloud as their pitch), with PK curves and a 3D injection site map. Pick Alethea if the job is “is this working?” — adherence + labs + multi-brand wearables + AI on *your* data, on web/PWA.
Alethea Health wrote this page. We disclose that up front. Competitor facts are summarized from public vendor pages as of September 2026 and may change — verify on their site before you buy.
Side-by-side
| Protocol | Alethea Health | |
|---|---|---|
| Best for | Privacy-first native logging + PK + site map | “Is it working?” — adherence, labs, wearables, AI |
| Platforms | Native iOS + Android (app-first; free web tools exist) | Web / PWA only |
| Architecture | On-device / no-account / no-cloud (per their site) | Cloud account; sync across devices |
| AI lane | Research Assistant / Stack Builder (Pro) | AI chat over *your* doses, labs, wearables |
| Wearables / labs | On-device; Apple Health (iOS) | Labs + Apple Health, Fitbit, Withings, Garmin, Oura, WHOOP, Polar (Premium+) |
| Price (as of Sep 2026) | Free core; Pro ~$9.99/mo or ~$59.99/yr (prefer their pricing / store if they conflict); 14-day trial, no card (per marketing) | Free / Premium $9.99/mo or $99.99/yr / Pro $29.99/mo or $299.99/yr |
Protocol — native, on-device, PK + site map
Protocol is a native iOS and Android peptide tracker. Architecture pitch (Sep 2026, per their site): on-device / no account / no cloud for the native apps — a real privacy angle if you refuse cloud sync.
What they emphasize: dose logging; peptides + supplements + habits in one protocol; reconstitution calculator; PK curves; 3D injection site map; AI Research Assistant / Stack Builder (Pro); Apple Health on iOS.
Pricing note: their homepage and App Store listings have shown both ~$9.99/mo and ~$59.99/yr for Pro. Prefer Protocol’s own /pricing and store listings if those numbers diverge. Core tracking is free. A 14-day Pro trial without a card is commonly mentioned in their marketing.
Where it stops for some people: it is not a web/PWA-primary product, and its AI lane is research / stack-building rather than correlating wearables + labs over a long longitudinal stack.
Alethea — “is it working?” on web/PWA
Alethea is a peptide-first personal health OS: schedules and adherence (including misses), reconstitution math, vial inventory, lab uploads, wearable sync (Apple Health, Fitbit, Withings, Garmin, Oura, WHOOP, and Polar), and AI chat that answers from your data.
Honest limits: web / PWA only — no native iOS/Android app. Free has no wearable sync (wearables start at Premium). Not HIPAA-covered. No BAA. Not a pharmacy. Not Alethea Medical.
Pricing (matches live pricing): Free $0; Premium $9.99/mo or $99.99/yr; Pro $29.99/mo or $299.99/yr; Clinic $1,990/yr (up to 10 patients, 3 staff; month-to-month $199/mo); Founding Member Pro $9.99/mo locked (first 50, web only).
Pick Protocol if…
- You refuse web/PWA and want native iOS or Android today
- On-device / no-cloud storage is non-negotiable
- PK curves and a 3D injection site map matter more than wearable + lab correlation
Pick Alethea if…
- You’re changing more than one variable and need adherence next to outcomes
- You own a wearable (or run labs) and want them next to doses
- You want AI on *your* longitudinal stack, not only compound research chat
- You’re fine with web / installable PWA
Start tracking free on Alethea →
Related: Best peptide tracker apps · What is a peptide protocol tracker?
*Educational reference only — not medical advice. Alethea reads your data and surfaces patterns; it does not diagnose, prescribe, or replace a clinician. Alethea Health is not a pharmacy, is not HIPAA-covered, does not sign a BAA, and is not affiliated with Alethea Medical (aletheamedical.com).*
Frequently asked questions
What is the difference between Alethea and Protocol?
Protocol is a native iOS/Android peptide tracker with on-device / no-account architecture, PK curves, and a 3D injection site map. Alethea is web/PWA only and focuses on whether a protocol is working — schedules and adherence, labs, multi-brand wearables, and AI over your own longitudinal data.
Is Protocol free?
Protocol's core tracking is free (on-device). Protocol Pro is commonly ~$9.99/mo or ~$59.99/yr per their marketing / App Store listings as of Sep 2026 — prefer their /pricing and store pages if those contradict. A 14-day Pro trial with no card is commonly mentioned in their marketing.
Does Alethea have a native iOS or Android app?
No. Alethea is web and installable PWA only. Native iOS and Android apps are not available.
Is Alethea HIPAA compliant?
No. Alethea is not HIPAA-covered and does not sign a BAA.
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