Best Peptide Tracker Apps in 2026: 6 Apps Compared
Most "best peptide tracker" lists are written by one of the apps on the list. So is this one — Alethea Health is ours. The difference: we'll tell you exactly who should use a competitor instead of us, because a tracker you'll abandon in two weeks is useless no matter which one it is.
The short version: if you want the simplest native app for logging one or two injectables, get Regimen. If you're running a multi-variable protocol and the question keeping you up is "is any of this actually working?", that's the problem Alethea was built for.
What actually matters in a peptide tracker
Four things separate a tracker you'll still use in month three from a dose diary you abandon:
- Logging friction. If a dose takes more than 10 seconds to log, you'll stop logging.
- Correlation, not just history. A list of doses tells you what you took. It can't tell you what changed. You need your doses next to your sleep, HRV, weight, and labs.
- Your whole protocol, not just injections. Most people running peptides are also running supplements, orals, training, and diet changes. If the app only sees injections, it only explains part of the picture.
- An answer, not a chart. Charts still make you do the analysis. The 2026 bar is being able to ask "did my sleep change after I started this?" and get an answer from your own data.
The comparison
| App | Best for | AI analysis | Wearables | Price |
|---|---|---|---|---|
| Alethea Health | "Is this working?" — multi-variable protocols | Yes — AI reads your own data | Oura, WHOOP, Dexcom, Garmin, Apple Health | Free / $19.99/mo |
| Regimen | Simple native logging + calculators | No | Apple Health / Health Connect | Free (1 compound) / $4.99/mo |
| PepPal | AI peptide Q&A (no tracking) | Chat only — not your data | None | $9.99–49.99/mo |
| PepTracker | Bare-bones dose history | No | None | Free tier |
| Smart Peptide Tracker | Android-first, one-time price | No | Health Connect | $34.99 once |
| Shotsy | GLP-1-only tracking | No | Apple Health (read-only) | Paid, iOS only |
1. Alethea Health — for the question the others can't answer
Alethea logs peptides, GLP-1s, and everything else in your protocol, pulls in your wearable data (Oura, WHOOP, Dexcom, Garmin, Apple Health), takes lab uploads, and puts an AI on top that answers questions from your data — not generic peptide trivia. A free reconstitution calculator (mg, mcg, syringe units) is built in — no account needed.
Honest limitations: we're web-first (a progressive web app that works on any device, with offline logging) and the native iOS app is arriving now. No PK curve modeling yet. We're newer than some of the apps below and we won't pretend otherwise — no invented user counts here.
Pricing: Free tier; Premium $19.99/mo; Pro $49.99/mo; a Clinic tier for practitioners.
Pick Alethea if you're changing more than one variable, you own a wearable, and you want an analyst — not another chart to interpret yourself.
2. Regimen — the best pure logger
Regimen is a genuinely well-built native tracker: a large compound library, reconstitution calculators, injection-site rotation, PK curves, Apple Health sync, and a generous free tier for a single compound. It's earned its high App Store rating.
Where it stops: no AI — their own comparison page lists that as a limitation. It sees injectables only, and wearable data means Apple Health passthrough, not direct Oura, WHOOP, or Dexcom. It shows you charts; the analysis is still your job.
Pick Regimen if you track one or two injectables and want the cleanest native logging experience with good calculators. It's the best app in that lane.
3. PepPal — AI answers, no tracking
PepPal is an AI peptide research chatbot with calculators and a knowledge base — useful for "what is X?" questions. But it doesn't track anything, so it can't tell you what a compound is doing to you. At $9.99–49.99/mo, you're paying tracker-and-a-half prices for chat alone.
Pick PepPal if you want a peptide-specific chatbot and you're happy tracking elsewhere.
4–6. PepTracker, Smart Peptide Tracker, Shotsy
- PepTracker: simple free dose history, one of the larger review counts in the category. No calculators, no health integration.
- Smart Peptide Tracker: Android-first with a one-time price — the pick if you refuse subscriptions.
- Shotsy: GLP-1 only, iOS only. Fine for semaglutide-only users; a dead end if your protocol grows.
The bottom line
Every app above can log a dose. Only one connects your doses, your wearable data, and your labs, then answers questions from them. If tracking is the goal, Regimen is excellent. If knowing is the goal, that's Alethea.
*Educational reference only — not medical advice. Alethea reads your data and surfaces patterns; it does not diagnose, prescribe, or replace a clinician.*
Frequently asked questions
What is the best peptide tracker app in 2026?
It depends on what you need. For the simplest native app to log one or two injectables, Regimen is excellent. For a tool that correlates your doses with wearable data and labs and answers 'is this actually working?' from your own numbers, that's what Alethea Health is built for. PepPal is an AI chatbot with no tracking. The right pick is the one you'll still be using in month three.
Is there a free peptide tracking app?
Yes. Alethea Health has a free tier for logging your protocol and a free reconstitution calculator with no account required. Regimen offers a free tier for one compound. PepTracker has a free dose-history tier. Most apps reserve wearable correlation, AI analysis, or multi-compound tracking for paid plans.
What's the best alternative to Regimen?
Regimen is a strong native logger but has no AI analysis, sees injectables only, and limits wearable data to Apple Health passthrough. If you want AI analysis of your own data plus direct Oura, WHOOP, Dexcom and Garmin integration and lab uploads, Alethea Health is the closest alternative aimed at multi-variable protocols.
Can a peptide tracker tell me if my protocol is working?
Most can't — they show dose history and charts, leaving the analysis to you. To answer 'is it working,' an app needs to hold your doses, your wearable trends (sleep, HRV, weight), and your labs together and interpret them. Alethea Health puts an AI on top of that combined data to surface patterns; it does not diagnose or prescribe.