Guides & comparisons

Peptide Log vs Peppies: Simple Dose Diary or Full Health Log? (2026)

Peptide Log is a clean iOS dose diary; Peppies is an Android-first inventory, blood-work and wearable log with COA verification. If all you need is a tidy record of doses, the diary wins; if you need to know what was in the vial, the log does.

By the Peppies research desk · Published 29 July 2026 · Updated24 September 2026

Written by the team behind Peppies. We build one of the apps discussed here, so read us with that bias in mind — we link every competitor so you can check claims yourself, and we say plainly where a competitor is the better fit.

Peptide Log is one of the most liked peptide apps on iOS for a simple reason: it does one thing — a clean personal dose diary — and does it without clutter. Peppies sits at the other end of the spectrum.

When is Peptide Log the better choice?

Speed and simplicity. Open, log, done. It’s iOS-native, and if your entire need is a tidy record of what you administered and when, a focused diary beats a bigger app. It is clear about being for “personal tracking purposes only” — a framing we respect.

When is Peppies the better choice?

Peppies assumes the log is the least interesting part. What it adds:

Inventory with provenance — every vial with lot number, acquisition date, and a link to the third-party certificate of analysis for its exact batch.
Blood work on a schedule — partner-lab panels planned into your cycle, results held on-device only.
Wearable signals — sleep, HRV, resting heart rate and steps beside your plan, via Health Connect, Oura, Whoop or Fitbit. Optional, revocable.
Four languages, free, EU-based.

Which platforms do Peptide Log and Peppies run on?

Today it’s a clean split: Peptide Log is iOS; Peppies is live on Android with iOS in progress. For many readers the platform decides before the features do.

Peptide Log or Peppies: which should you pick?

A minimal personal diary on iPhone: Peptide Log. The full picture — what you hold, what’s verified, what your panels and wearables say — on Android: Peppies. Neither gives medical advice, and neither should.

Sources

The App Store and Google Play listings linked above — the source for each app’s features, platforms and price (links checked 24 September 2026)
Apple, App privacy details on the App Store, and Google Play, Data safety section — where every app has to declare what data it collects and whether it leaves the device — developer.apple.com · support.google.com
Apple HealthKit and Android Health Connect — the system layers through which a tracker reads wearable data such as sleep, HRV and resting heart rate, only with the user’s permission — developer.apple.com · Health Connect on Google Play

Try Peppies — track your stack, blood panels and wearable signals, with batch verification. Free on Google Play. Research use only; no medical advice, no dosing instructions.