Peptide Tracker Log & Reminder (by Flat Six Labs LLC, at peptidetracker.ai) is a peptide and GLP-1 tracker for iPhone, Android and the web. It is a different app from Peptide Tracker & Calculator, which has its own comparison page. It does a lot of what Dose Track does, including stacks, blends and vials, and it is free. The real differences are where your data lives, bloodwork, and the web app.
Transparency note: Dose Track publishes this comparison. Everything about Peptide Tracker Log & Reminder below comes from its own App Store listing, Google Play listing and website, as of October 22, 2026, linked under Sources. Apps change quickly, so check its current listing before deciding.
If you want a full tracker at no cost, or want to log doses from a laptop as well as your phone, Peptide Tracker is hard to argue with. If you want your records kept on your phone without an account, with bloodwork PDFs read into the same app, Dose Track is the closer fit.
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| Feature | Dose Track | Peptide Tracker (Flat Six Labs) |
|---|---|---|
| Several compounds at once | Yes. Free tier, Pro unlocks more | Yes. Build a stack |
| Blends (more than one compound in one vial) | Yes. Each compound in the blend is logged and counted | Yes. Blend components and premixed blends |
| Vial inventory with run-out warning | Yes. Counts down each draw and warns before you run out | Yes. Mixed and unmixed vials, BAC water and other supplies |
| Injection-site rotation | Yes. Body map of sites on Pro | Yes. Saved site groups, last used site shown |
| Reconstitution calculator | Yes, both directions, in the app and free on dosetrack.app | Yes, in the app and on the web |
| Bloodwork | Yes. Reads lab PDFs (Pro) | — |
| AI chat | Yes (Pro; one free message a day) | Yes (AI chat in the mobile app) |
| Community in the app | Yes | Yes. "Connect" community |
| Where your data lives | On your phone by default. Optional encrypted backup only your password opens | Your account, shared between phone and web |
| iPhone | Yes | Yes (iOS 16.4+) |
| Android | Yes | Yes |
| Web app | — | Yes |
| Price | Free tier. Pro $6.99/month or $69.99/year (3-day free trial on annual) | Free. No subscription. Optional "Founding Member" and tip purchases |
Based on each app's public listings and website as of October 22, 2026. A dash means the feature was not listed at the time, not that the app cannot do it. Prices are US App Store prices; an app can show different offers to different people.
Peptide Tracker is free, with no subscription and no paywall; the only purchases in its App Store listing are optional "Founding Member" and tip payments. For a free app it covers a lot: stacks with custom doses and schedules (including on/off and titration), mixed and unmixed vials, blend components, bacteriostatic water and other supplies, with inventory updating when you correct a dose.
It has calculators for reconstitution, syringe units, premixed blends and half-life, plus symptom tracking, weight, progress photos with alignment tools, Apple Health and Health Connect, an AI chat, free courses, and a "Connect" community. It also has a web app, so you can log doses and manage inventory from a browser on the same account. It has about 2,680 ratings on the App Store averaging 4.9 (as of October 22, 2026).
Dose Track is built for people running several compounds at the same time: peptides, TRT, GLP-1s and supplements, each with its own schedule, in one place. Blends are handled as blends: when you log a shot from a vial with two or three compounds in it, each compound is recorded and each one's supply goes down.
Vials are tracked one by one. Every draw you log comes off what is left in that vial, and the app warns you before a vial runs out, with a reorder reminder if you tell it where you buy from. Injection sites are tracked per shot so you can rotate them.
For reconstitution, the math works in both directions: from vial size and water to units on the syringe, or from the dose you want back to how much water to add. It's in the app and free on the web at dosetrack.app. Dose Track records what you enter and does not recommend doses.
Your records stay on your phone by default. You do not need an account to use it. If you want a backup, it is encrypted with your password before it leaves the phone, so the copy on our server cannot be read without it.
These two cover much of the same ground: several compounds at once, blends, vial and supply tracking, site rotation, reminders, weight and an AI chat, on iPhone and Android. Neither gives medical advice. The difference is less about features and more about the trade each one makes.
Peptide Tracker keeps your data in an account so the same records show up on your phone and in a browser. That is a fair trade for web access. Dose Track makes the other trade: records stay on your phone, no account is needed, and the optional backup is encrypted with your password, which is also why there is no web version.
Peptide Tracker uses an account that works across iPhone, Android and the web, so your records are kept on its servers. Its App Store privacy label lists health and fitness data, email and identifiers as linked to you, for app functionality and analytics. It says you can export your data by emailing them and delete your account in the app.
We read Peptide Tracker Log & Reminder's App Store description, in-app purchase list, release notes and privacy label, its Google Play listing and its website on October 22, 2026. Dose Track facts come from our own app and pricing page. We did not use reviews or star ratings to judge features. Dose Track publishes this page, so the framing is ours, but every claim about Peptide Tracker Log & Reminder can be checked at the links above. If something here is out of date, email hello@dosetrack.app and we will fix it.
If you want a full tracker at no cost, or want to log doses from a laptop as well as your phone, Peptide Tracker is hard to argue with. If you want your records kept on your phone without an account, with bloodwork PDFs read into the same app, Dose Track is the closer fit.
Dose Track is free to download on the App Store and Google Play:
Download on the App Store →
Get it on Google Play →
See also: All app comparisons · Best Peptide Tracker Apps (2026) · Visit peptidetracker.ai