Best Peptide Tracker Apps (2026)
Tested & Compared — Including the Bigger Apps Most Lists Skip
Most "best peptide tracker" lists only compare a handful of tiny niche apps. We compared the dedicated peptide trackers AND the bigger apps people actually have on their phones — MyFitnessPal, Noom, Shotsy and the manufacturer apps — so you can see exactly where each one wins and where it falls short.
How We Compared These Apps
We looked at every app a peptide or GLP-1 user might realistically reach for — not just the five niche trackers that usually fill these lists. That means weighing dedicated peptide apps against the mainstream health apps (MyFitnessPal, Noom) and the official manufacturer companion apps, because those are what most people try first.
For each app we checked the same things that actually matter day to day: a proper dose and injection log, a reconstitution and syringe calculator, injection-site rotation, supply countdown, medication-level prediction, weight and symptom tracking, platform support, price, and whether there is a real free version. Ratings and review counts are from the App Store and Google Play as of June 2026.
The Short Answer
If you inject a GLP-1 or peptide and want one app that logs doses, rotates injection sites, does the reconstitution math, predicts your medication level and tracks weight — on both iPhone and Android, for free — Shotlee is the most complete pick in 2026.
If you mainly count calories, MyFitnessPal is the bigger app and still the best free food log. If you want psychology-led coaching, Noom or WeightWatchers do that better. For a deep peptide-research power tool, PeptIQ goes furthest. The rest of this guide shows exactly when each one wins.
The Best App for Your Goal
Best overall GLP-1 + peptide tracker
Shotlee — dose log, syringe + reconstitution calculators, site rotation, supply and medication-level prediction in one free app on iOS and Android.
Biggest free food & weight app
MyFitnessPal — unmatched food database for calories and macros, but no injection, dose, or reconstitution tools.
Best coaching & habit change
Noom or WeightWatchers — strong psychology-led programs and human coaches, priced as a subscription, not a tracker.
Best dedicated peptide power tool
PeptIQ — large compound library and research notes for advanced stackers who want depth over polish.
Best simple GLP-1 pen logger
Shotsy — clean, popular iOS app for logging weekly shots and weight; lighter on calculators and Android.
Best manufacturer companion
Zepbound / Mounjaro apps — savings, refills and coupons for one brand, but they only track their own medication.
Feature Comparison: Shotlee vs the Field
| Feature | MyFitnessPal | Noom | Shotsy | PeptIQ | Shotlee |
|---|---|---|---|---|---|
| Dedicated dose / injection log | ❌ | ❌ | ✅ | ✅ | ✅Best |
| Reconstitution + syringe calculator | ❌ | ❌ | ❌ | ✅ | ✅ |
| Injection-site rotation map | ❌ | ❌ | ✅ | ✅ | ✅ |
| Supply / vial countdown | ❌ | ❌ | ❌ | Partial | ✅ |
| Medication-level predictor | ❌ | ❌ | ❌ | Partial | ✅ |
| Weight & body measurements | ✅ | ✅ | ✅ | ✅ | ✅ |
| Symptom & dose-reaction log | ❌ | Partial | ✅ | ✅ | ✅ |
| Apple Health / Health Connect sync | ✅ | Partial | ✅ | ❌ | ✅ |
| Community / peer support | ✅ | ✅ | ❌ | Partial | ✅ |
| iOS and Android | ✅ | ✅ | iOS only | ✅ | ✅ |
| Real free version | Limited | ❌ | Limited | ❌ | ✅ |
| Built-in AI assistant | Partial | ✅ | ❌ | Partial | ✅ |
| Doctor / PDF export | ❌ | ❌ | Partial | ✅ | ✅ |
Why Shotlee Stands Out
The features that close the gap between a simple pen logger and a full protocol tool.
The Bigger Apps, Reviewed
MyFitnessPal — the largest health app most peptide users already own. Its food database is unbeatable for calories and macros, and weight logging is solid. But it has no concept of an injection, a dose, a vial, or reconstitution, so it can never be a real peptide tracker on its own. Best used alongside a dedicated tracker, not instead of one.
Noom — a polished, psychology-first weight program with human coaching and a large community. Excellent for behaviour change, but it is a paid coaching subscription rather than a protocol log; there is no dose log, calculator, or site rotation.
WeightWatchers — strong brand, food tracking, and a clinic arm that prescribes GLP-1s. Good if you want the medication and the program from one company, but the app tracks points and weight, not injection-level protocol detail.
Shotsy — the most popular dedicated GLP-1 tracker, with a clean interface for logging weekly shots, weight, and side effects. The gaps are reconstitution and dosing calculators, supply prediction, and Android: it is an iPhone-first app focused on pre-filled pens rather than reconstituted peptides.
Zepbound and Mounjaro companion apps — useful for savings cards, refills, and brand support, but they only ever track their own medication. Switch brands or add a peptide and they cannot follow you.
The Dedicated Peptide Apps, Reviewed
PeptIQ — the deepest peptide power tool here, with a large compound library, research references, and stack notes. It rewards advanced users but is largely paywalled and lighter on the everyday polish, free tier, and health-sync that mainstream users expect.
DoseMap — a genuinely free reconstitution calculator and protocol library with a transparent, honest tone. Strong on the math, newer and lighter on full tracking, history, and native mobile depth.
Protocol and My Pep Calc — feature-dense newer apps leaning on AI assistants, bloodwork notes, and pharmacokinetic curves. Promising for power users, but the AI features are still maturing and the free tiers are limited.
Honest Take: Shotlee vs the Rest
- ✓One app for GLP-1s and peptides — not locked to a single brand
- ✓Calculators, site rotation, supply and level prediction built in
- ✓Free core features on both iOS and Android
- ✓Moderated community without a separate forum
- ✓Offline-first logging with health-app sync
- →Pure calorie and macro counting — MyFitnessPal’s database is bigger
- →Coaching and accountability — Noom and WeightWatchers go deeper
- →Exhaustive research notes per compound — PeptIQ has more depth
- →A free, web-only reconstitution calculator — DoseMap is lightweight
- →Brand savings and refills — the manufacturer apps own that
How to Choose Your Peptide Tracker
Frequently Asked Questions
For most people injecting a GLP-1 or peptide, Shotlee is the most complete free option: it combines a dose log, reconstitution and syringe calculators, injection-site rotation, supply countdown, medication-level prediction, and weight tracking on both iOS and Android. PeptIQ goes deeper on research, Shotsy is a simpler iPhone-only pen logger, and MyFitnessPal is better only for food tracking.
Yes. Shotlee’s core — dose logging, calculators, weight and symptom tracking — is free on iOS and Android, with an optional Pro tier for advanced features. DoseMap offers a free web reconstitution calculator. Many other trackers (PeptIQ, Noom) are largely paid.
Yes — that is exactly what a dedicated tracker like Shotlee is for. You can log GLP-1s such as Ozempic, Mounjaro, Zepbound and Wegovy alongside peptides like BPC-157, TB-500 and Ipamorelin in one timeline. Manufacturer apps only track their own brand, and general apps like MyFitnessPal track neither.
Shotlee, MyFitnessPal, Noom and PeptIQ all run on Android. Several popular trackers — including Shotsy — are iPhone-only, so always confirm Android support before you commit if you use an Android phone.
General apps and spreadsheets can store weight and notes, but they have no reconstitution calculator, no syringe-unit conversion, no injection-site rotation, and no medication-level prediction. A dedicated tracker does the protocol math and keeps an injection history you can share with a prescriber, which is hard to reproduce in a notes app.
Shotlee includes both a reconstitution (bacteriostatic water) calculator and a syringe-unit calculator built into the tracker. DoseMap and PeptIQ also offer reconstitution math; most mainstream apps offer none.
Privacy varies by app, so always read the policy. Shotlee stores your protocol data to your own account, supports offline-first logging, and lets you export or delete your data. If privacy is your priority, prefer apps that are clear about storage and let you remove your account and data.
Track Your Protocol Free with Shotlee
Dose logs, calculators, site rotation, supply and weight tracking — free on iOS and Android.