Peptide Tracker Apps
The Best Free Peptide Tracker Apps in 2026: What's Actually Free
Some peptide trackers are free forever, some have a free tier with a cap, and some are just a trial. Here is which is which — including ours.
Disclosure: we make LynkDose, a paid peptide tracker. It is not free beyond a 7-day trial, so it is not the answer to this question — and we say so below. The free options listed here come from our comparison of 24 peptide tracker apps, verified against the App Store, Google Play and developer pricing pages on 3 September 2026. Pricing changes often, so check the listing before you commit.
Three kinds of "free"
Search "free peptide tracker app" and you will find three very different things under the same word:
- Free forever. Every feature, no subscription, no expiry. Rare in this category.
- Free tier. Free with a cap — usually one compound or a few protocols. Great if you run a single peptide; you only pay once you outgrow it.
- Free trial. Free for a few days, then a subscription. Useful for testing an app, not for tracking for free.
The genuinely free options
| App | What is free | Limit | Platforms | Rating (count) |
|---|---|---|---|---|
| Peptide Tracker (Log & Reminder) | Everything | None — optional tips only | iPhone, Android | 4.9 (1,874) |
| Regimen | Every feature | One compound | iPhone, Android | 4.8 (375) |
| OptiPin | Core tracking + CSV export | One medication | iPhone | 4.8 (155) |
| PepTracker: Dose Log | Core logging | Three protocols | iPhone | 4.7 (437) |
| Dose Track | Full analytics | One medication | iPhone (Android unclear) | 4.9 (24) |
| BodyDex | All peptide features | Nutrition AI is paid | iPhone, Android | 4.9 (10) |
| My Pep Calc | Calculator, log, site rotation | Three compounds | Web (any device) | No store ratings |
| PepMinder | Calculator, reminders, dose steps, log | Two peptides, 30 days of history, ads | Android | 4.8 (17, Play) |
| The Pep Planner | Calculator, one protocol | One protocol, 3 AI chats/day | Android (Play) | 3.8 (8) |
Verified 3 September 2026 (PepMinder 16 October 2026). Ratings are App Store unless noted; low rating counts are a weak signal, so weight them accordingly.
Best overall free pick: Peptide Tracker (Log & Reminder)
If you want free with no strings, start here. There is no paywall at all. It includes a reconstitution calculator, vial inventory that separates mixed from unmixed vials, injection-site rotation, reminders and progress photos, on both iPhone and Android. The trade-offs: no Apple Health sync, and exporting your data means emailing the developer rather than a button in the app.
Best free tier for one compound: Regimen
Regimen's free tier unlocks every feature for a single compound with no time limit and no card. If you run one peptide, you may never need to pay. It also has the widest set of calculators here (reconstitution, split-dose, intranasal and TRT oil) and runs on Android.
Best free option without installing anything: My Pep Calc
A browser-based tracker you can install as a web app. The free tier covers three compounds with a reconstitution calculator, dose log and site rotation. There are no store ratings yet, so treat reliability as unproven.
When a free tracker is enough — and when it isn't
For one compound on a steady schedule, any of the free options above will do the job, and a spreadsheet is fine too. The limits tend to show up when you:
- Run a stack. Most free tiers cap you at one compound or a few protocols.
- Want to know whether it worked. Correlating doses against sleep, weight or HRV usually needs Apple Health integration, which several free options skip.
- Need your data out. Export is often paid, limited, or on request.
The free step everyone should take
Whatever app you pick, the most error-prone part of peptide tracking is reconstitution math. Our free reconstitution calculator gives you the exact draw in mL and insulin-syringe units, in your browser, with no signup. The insulin syringe guide explains how to read the result.
Where LynkDose fits
LynkDose is not a free tracker. It is free to download with a 7-day trial, then $9.99/month or $40/year. We built it for one specific case: people running several compounds who want to see which one is moving their numbers. It scores each compound separately against Apple Health (weight, sleep, HRV, resting heart rate) and a daily journal.
If that is not you, one of the free apps above is a better choice, and we would rather you use one than pay for features you do not need. If it is, the trial is long enough to run a full week of your protocol through it before deciding.
Running a stack? Try LynkDose for 7 days
Log a full week of your protocol, then see how each compound lines up with your Apple Health data.
See LynkDose in actionFree to start · 7-day trial · cancel anytime
The short version
- Free with no limits: Peptide Tracker (Log & Reminder).
- Free for one compound: Regimen, or OptiPin / Dose Track on iPhone.
- Free on the web: My Pep Calc.
- Free dose math only: our reconstitution calculator.
- Want to compare everything, paid included: see all 24 apps compared.
Not medical advice. Many peptides are research compounds not approved for human use; talk to a clinician before starting any protocol.
Frequently asked questions
Is there a completely free peptide tracker app?
Yes. Peptide Tracker (Log & Reminder) by Flat Six Labs is fully free with no paywall — the only in-app purchases are optional tips. It covers reconstitution math, vial inventory, injection-site rotation and reminders on both iPhone and Android. As of September 2026 it is the strongest genuinely free option.
What is the best free peptide tracker if I only take one compound?
Regimen. Its free tier unlocks every feature for one compound with no time limit and no card required, and it runs on iPhone and Android. OptiPin and Dose Track also have free tiers limited to one medication.
Is there a free peptide tracker app for Android?
Yes. Peptide Tracker (Log & Reminder) Regimen and PepMinder have free options on Android, and My Pep Calc has a free tier that runs in any browser.
Is LynkDose free?
LynkDose is free to download with a 7-day free trial; after that it is $9.99/month or $40/year. The web reconstitution calculator is free with no signup. If you want a tracker that stays free, one of the apps above is the better fit.
Can I track peptides for free without an app?
Partly. A spreadsheet works for one compound, and the free reconstitution calculator handles the dose math in your browser. What you lose is reminders, injection-site rotation and expiration tracking — the things a dedicated tracker does for you.
Your peptide tracker, done right
LynkDose logs every dose, manages your vial inventory, rotates injection sites, and charts your results against HealthKit data — all private and on-device.
Download LynkDose Free