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Pepti — Peptide Tracker for iPhone

Private & on-device — no account, no cloud sync.

Keep an exact record of every injection.

No account. No sign-up. No cloud sync. Your protocol and health data stays on your device unless you turn on the AI coach or lab-report import.

A paid tool — no free tier and no ads in the app. Your protocol and health logs are not used for advertising; install attribution uses Apple’s tracking permission prompt.

Free guides and web tools on this site (not part of the app):

Download on the App Store

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iPhone only. If the App Store doesn’t open, tap the ••• menu and choose Open in Safari.

AI Documentation

Not medical advice. Pepti is a record-keeping tool, not a medical device.

What a peptide tracker does

A peptide tracker is the record behind an injectable routine: what you drew, when, into which site, and from which vial. The point of keeping it is that the record can answer questions later that memory cannot. On paper those details scatter — the rotation turns into guesswork, and a vial’s lot and mixing date go missing. A good peptide tracker holds the log, the vial records and the trend in one place, so each refers to the same history instead of three half-remembered versions of it.

Pepti is built for people drawing from compounded vials and research peptides rather than prefilled pens. It logs each dose you type with the date, time and vial; it remembers your last injection site and shows your rotation across twelve zones; it keeps each vial’s lot, reconstitution date, expiry and what it cost; and it reads your bloodwork against published reference ranges. Your protocol stays on the device unless you turn on the AI coach or lab-report import — no account, no sign-up, no cloud sync.

There is one line it never crosses: Pepti does not tell you what dose to take. You enter a figure you already have, and it records it. Keeping an accurate record is our job; the decision stays with you and whoever directs your care.

If you are weighing up which app to use, our guide on how to choose a peptide tracking app explains what to log, how reconstitution and U-100 units work as plain arithmetic, and how to choose a tracker that fits the way you dose — pens or vials, iOS or Android, on-device or account-based. It is the honest version of the pitch: if pens suit you better, or you are on Android, it says so and points you elsewhere.

How to choose a peptide tracking app

Common questions

The free tools mentioned here are the spreadsheet template and the reconstitution calculator.

Is there a free spreadsheet that can track peptides?

Yes. This site publishes a free CSV template (a download, not an export from the app) with the columns an injectable routine needs: date, time, compound, the amount you were given, unit, vial id, lot, site and notes. It opens in Excel, Numbers, Google Sheets or LibreOffice, needs no sign-up, and supplies no figures of its own. The app keeps the same record with the 12-zone site sequence and each vial's lot, reconstitution and expiry dates built in.

Is there a free peptide calculator?

Yes. The free reconstitution calculator on this site, not the app, works in a browser: enter the amount in the vial, the water you added and the figure you already have, and the calculator returns the draw volume, the U-100 syringe units and the number of draws in the vial. It never suggests the figure. The app itself does not do this arithmetic: it records the figure you type, with the date, site and vial.

By Tessaro Pty Ltd, the maker of Pepti · Reviewed · About · Editorial policy · Reviews

Pepti - Peptide Tracker (App Store ID 6762118154) by Tessaro Pty Ltd is not affiliated with other apps that use the name Pepti.