The PepSync app

The peptide calculator app for iPhone

PepSync pairs the free web reconstitution calculator with an iOS app that saves every protocol, reminds you of doses, rotates injection sites, and tracks vials — so you do the math once.

Try the free web calculator

Accurate reconstitution + dose math

The same calculator from the web — vial mg, BAC water, dose, and syringe units — saved per peptide so you never redo the math.

Saved protocols

Every calculation becomes a reusable protocol with its vial, water, dose, syringe, and schedule.

Dose reminders

Notifications that follow your cycle. Log, snooze, or skip in one tap.

Vial + cost tracking

See doses remaining, reorder timing, injection-site rotation, and per-dose cost over time.

Calculator first, tracker second

Most tracker apps assume a pre-filled pen. PepSync is built for people reconstituting their own vials: it does the mg → mcg → mL → units conversion accurately, then keeps the result tied to a saved protocol. Start on the peptide calculators, then save the setup in the app.

Free and Pro

The web calculator is free and needs no signup. The iOS app has a free tier; Pro unlocks unlimited saved protocols, injection-site rotation, vial and cost tracking, and reminders. Subscriptions are billed through your Apple ID — see the terms and privacy policy.

Private by design

Your protocols are stored on your device. PepSync is an educational calculator and protocol tool — it does not diagnose, prescribe, or replace your clinician or pharmacy.

Free · iPhone & Android

Your peptide protocol deserves
more than a sticky note.

Download PepSync. Save the calculation you just ran. Get on with your life.

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