Peptidy Is Now on iPhone

We're excited to share that Peptidy is now available on the App Store. Everything you can do on the web — logging injections, tracking your progress, keeping your protocol organised — now fits in your pocket, ready whenever you need it.

Download Peptidy on the App Store →

Why we built Peptidy

Anyone running a peptide or GLP-1 protocol quickly discovers the same problem: the details matter, and they're easy to lose track of. What did you inject, when, and where? Which vial are you on, and at what concentration? Are you actually staying consistent, or has the last fortnight quietly slipped? Notes apps and spreadsheets don't cut it once you're managing more than one compound.

Peptidy was built to be the single, private place where all of that lives — accurate, organised, and always to hand.

What you can do in the app

• Log every injection in seconds — record the dose, time, and injection site, including retrospective entries for doses earlier in the day.
• See your full history at a glance — every dose you've logged, organised by compound, so you can spot patterns over time.
• Track your progress — record body metrics like weight, body fat, and muscle mass, and watch the trends across your protocol.
• Keep your reconstitution details on hand — store your vial concentration so you always know what you're working with.
• Browse the compound reference library — background information on commonly discussed compounds, each with citations to published sources.

Web and iPhone, in sync

Peptidy works across both the web app and iOS, so your protocol travels with you. Set things up at your desk, log a dose from your phone, and it's all the same account — nothing to export, nothing to duplicate.

Free tools, on the house

Even before you sign in, our reconstitution calculators are free to use on the website, now covering 17 compounds — from BPC-157 and TB-500 to semaglutide, tirzepatide, and more. Enter your vial size and bacteriostatic water, and get your concentration and exact syringe units instantly. New to the details? Our peptide FAQ answers the practical questions people actually ask, from storage and stacking to needle choice and travel.

Built for privacy

Your protocol is nobody's business but yours. Peptidy never sells your data, runs no advertising, and carries no third-party tracking. Your information stays private and secure.

Get started

Whether you're just starting your first protocol or you've been at it for years, Peptidy keeps your logs accurate and your protocol organised. Download it on the App Store, or start on the web — your account works across both.

Peptidy is a personal tracking and record-keeping tool. It is not a medical device and does not provide medical advice, diagnosis, or dosing recommendations. The compounds discussed are research chemicals, not licensed medicines. Always consult a qualified healthcare professional before making any medical decisions.