Best 9 Peptide Trackers in 2026: Which App Fits Your Cycle?

Peptide Tracker: Cycle is our top pick for keeping injection schedules, dosages, and protocols organized without spreadsheets. This list also covers solid Android alternatives, pure calculators, and multi-compound loggers so you can find the right tool for your research or therapy needs.

Quick comparison table

A quick side-by-side snapshot of every app in this list.

1. Peptide Tracker: Cycle

Best for: a single, straightforward peptide tracker that handles scheduling, logging, and smart reminders in one place.

Peptide Tracker: Cycle tops the list because it combines a dose scheduler, injection log, and adaptive reminders in one clean workflow. You build a protocol once: pick your peptide from the built-in library, set a schedule, and map out on/off cycles. Then the app does the rest. A countdown timer shows exactly when your next dose is due, and push notifications adapt to your cycle days instead of nagging you daily.

• Map full cycles on a calendar and see upcoming doses at a glance.
• Reconstitution calculator translates vial strength, water volume, and target dose into syringe units instantly.
• Log notes, injection site, and dose per shot, replacing messy paper notebooks.
• Supply tracker counts doses remaining and flags reorder dates so you never run out.
• Free iOS download with optional premium features; works for GLP-1s, healing peptides, and custom entries.

Get Peptide Tracker

2. Smart Peptide Tracker

Best for: Android users who want deeper analysis and interaction checks.

Smart Peptide Tracker goes beyond basic logging with a stack analyzer and interaction network that flags potential conflicts when you run multiple peptides. You get a built-in reconstitution calculator and an inventory tracker that warns before a vial runs dry. The interface leans analytical. You can dissect protocols, spot overlaps, and see how compounds might interact. It’s the strongest Android-only peptide tracker for those who treat their log as a research notebook, not just a reminder app.

3. Peptide Tracker - PeptideKit

Best for: therapy-focused iOS users who want a clean daily logger.

PeptideKit keeps things simple. You log injections, monitor progress with visual trend views, and manage a handful of protocols without extra tools getting in the way. The injection-tracking interface shows dose history quickly, and the app helps you spot patterns over weeks. There’s no stack analyzer or vendor engine. It’s a straightforward peptide tracker built for steady, long-term therapy logging, where consistency matters more than data crunching.

4. Peptide Tracker and Library

Best for: Android users who want a peptide database and vendor price checks.

This app doubles as a searchable peptide reference and a dose calculator. Built-in lab assistant tools walk you through reconstitution math and injection prep step by step. What sets it apart is a vendor comparison engine that lets you price-check compounds across trusted shops, a feature no other peptide tracker includes. If you’re still shopping around and want to log protocols and compare suppliers in one place, it’s a practical, all-in-one Android pick.

5. Regimen: Peptide Tracker

Best for: stacking multiple compounds and correlating them with health data.

Regimen handles peptides, GLP-1s, and TRT compounds under one roof. You log each injection, and the app overlays health metrics on a timeline so you can see how your body responds to different protocols. Visual charts help you connect a dose change to a change in sleep, weight, or workout performance. The compound library is broad, and the multi-compound dashboard is the clearest we tested for users running more than one substance at a time.

6. Peptide Calculator: PepCalc

Best for: a focused, ad-free dose calculator on iOS.

PepCalc strips away all logging clutter and does one job: accurate math. Enter your vial strength, BAC water volume, and target dose, and it instantly converts the result into insulin syringe units. There’s no calendar, no injection history. It’s just a professional-grade calculator that eliminates guesswork during reconstitution. For researchers who already track elsewhere and want a fast, ad-free number cruncher, PepCalc is the cleanest option.

7. PepTracker: Dose Log

Best for: iOS users mixing peptides, GLP-1 meds, and testosterone schedules.

PepTracker brings scheduling, a built-in dose calculator, and smart reminders together for mixed-therapy users. You can set up separate protocols for peptides, GLP-1s, and TRT, then get reliable notifications that cut missed doses. The scheduling flexibility works well for protocols with off days or tapering steps. It’s a solid all-purpose logger for anyone managing more than one injectable without wanting to juggle multiple apps.

8. Peptide Calculator & Converter

Best for: quick syringe-unit math on Android without bloat.

This lightweight utility tells you exactly how many milligrams of peptide are in each unit of a syringe after reconstitution. Dial in the peptide amount, water volume, and desired dose, and the converter handles micrograms, milligrams, milliliters, and microliters instantly. It’s not a protocol tracker. There are no logs or reminders. But if you need fast math while prepping an injection, it’s the simplest Android tool available.

9. Peptide Tracker & Calculator

Best for: iOS users who want reconstitution math, scheduling, and dose history in a tidy package.

This app merges a reconstitution calculator with a daily dosing log and a dose scheduler. The injection history stays organized and easy to review, and the interface avoids feature creep. You won’t find interaction networks or health-metric overlays, but for someone who wants a clean, clutter-free peptide tracker that does the essentials well, it’s a strong pick.

How we picked these apps

We evaluated apps based on scheduling power, dose-calculation accuracy, reconstitution helpers, reminder reliability, and overall ease of navigation. Both iOS and Android were tested, and every app had to be actively maintained with recent updates. We dropped anything with intrusive ads or incomplete peptide databases. The final list covers a range: full protocol managers, pure calculators, and multi-compound loggers. So there’s a fit whether you run a single research peptide or stack several therapies.

Frequently asked questions

What is a peptide tracker app?

A peptide tracker is a mobile tool that schedules injections, calculates reconstitution and dosages, and logs each dose so you can follow a protocol accurately without manual spreadsheets or sticky notes.

Can I use these apps for GLP-1 medications?

Yes. Several picks, including Regimen and PepTracker, explicitly support GLP-1s alongside peptides, and most general trackers work fine for logging semaglutide or tirzepatide doses.

Are peptide tracker apps safe and private?

Most apps store data locally on your device. Review app permissions, avoid entering personally identifiable health information beyond dosage and timing logs, and check each app’s privacy policy for specifics.

The verdict

Peptide Tracker: Cycle wins for anyone who wants smart cycle reminders and clean protocol management without spreadsheets. The other picks fill specific gaps: Android analysis tools, pure calculators, and multi-compound dashboards. You can match the tool to your workflow. Get Peptide Tracker on the iOS App Store and stop worrying about missed doses.