"Peptide Tracker" (the Peptide Tracker & Calculator app) and Dose Track both help you handle peptide reconstitution and dosing. Peptide Tracker is a focused, calculator-first iOS tool; Dose Track is a cross-platform, pharmacokinetic-grade tracker for the whole protocol.
Transparency note: Dose Track publishes this comparison. We describe Peptide Tracker fairly from its public listing and website — confirm current features and pricing on its own page before deciding.
If all you need is the reconstitution math and a light log on an iPhone, Peptide Tracker & Calculator is a clean, unfussy answer. Choose Dose Track if the protocol itself is the thing you want tracked — several compounds at once, levels modeled from half-life, bloodwork in the same timeline, and Android support.
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| Feature | Dose Track | Peptide Tracker |
|---|---|---|
| Reconstitution calculator | Yes | Yes |
| Pharmacokinetic level charts (half-life) | Yes | — |
| Injection-site rotation | Yes | — |
| Vial & expiration tracking | Yes | Yes |
| Bloodwork / lab analysis | Yes | — |
| On-device / privacy-first | Yes | — |
| Compound library | 600+ | — |
| iOS | Yes | Yes |
| Android | Yes | — |
| Price | Free + Pro | Freemium |
Reflects publicly listed features as of June 2026. A dash means a feature wasn't advertised at the time of writing, not that it's impossible — confirm on the app's own listing.
Peptide Tracker & Calculator is a straightforward iOS option centered on the reconstitution-and-dose math, with basic tracking on top. If you're on iPhone and want a no-frills, calculator-first tool, it covers the essentials cleanly.
Dose Track is the only one of the two that models true pharmacokinetics — every dose is charted as a decaying exponential against the compound's calibrated half-life and Tmax, so you see your actual plasma level between injections instead of just a log of dates. It ships with 600+ compounds, parses bloodwork PDFs on demand, rotates injection sites automatically, and keeps all health data on-device — nothing is sold or stored on a server. It runs on both iOS and Android.
A calculator answers one question perfectly: how many units do I draw? For a lot of protocols that really is the hard part, and nothing else is needed.
It stops being enough at a predictable point. You add a second compound, and now the two have different half-lives and different schedules, and there is no single place showing you both. Or you change a dose mid-cycle and want to know how long the new level takes to settle. Or you get bloodwork back and want to know what your levels were on the morning of the draw, not just what you were prescribed. None of those are calculator questions.
The other thing a calculator cannot do is remember the vial. Once you have mixed it, the ratio matters for every future draw, and so does how much is left. Dose Track saves the ratio when you confirm a reconstitution, subtracts each logged draw from the remaining volume, and warns you before a vial runs dry — so you mix the next one ahead of time instead of discovering it mid-protocol.
Both apps solve the problem that brings most people to a peptide tracker in the first place: turning a vial size and a water volume into a number of units to draw, and keeping track of what is left in the vial. If that is the whole job, both do it.
You can try Dose Track's version of that math without installing anything — the reconstitution calculator runs free in a browser, and it works backwards from the dose you want to the water volume you should add.
Feature rows come from each app's public App Store or Google Play listing and its own website, checked at the date noted under the table. A dash means a feature was not advertised at the time of writing — not that the app cannot do it, and not that it will not be added. Dose Track publishes this page, so treat the framing as ours and the facts as verifiable: every claim about the other app can be checked on its own listing, and we would rather you did.
If you only need a peptide calculator on iPhone, Peptide Tracker does the job. If you want plasma-level modeling, a 600+ compound library, bloodwork analysis, Android support, and on-device privacy, Dose Track is the more complete peptide tracker.
The best peptide tracker is the one you'll actually open. Dose Track is free on the App Store (iOS 17+) and Google Play (Android):
Download on the App Store →
Get it on Google Play →
See also: Best Peptide Tracker Apps (2026) · Dose Track vs Shotsy · Dose Track features · View Peptide Tracker on the App Store