Peptide calculations and tracking in one iPhone app
PeptideCalc turns values you enter into reconstitution and syringe-unit calculations, then keeps your protocols, schedules, dose logs, injection sites, inventory, and insights together. The iPhone and iPad app is a $4.99 one-time purchase in the US App Store with no subscription and no PeptideCalc account required.
Protocols
Save protocol records and reload their calculation details
PeptideCalc turns one-off calculations into a library of user-entered records for peptides, supplements, nasal sprays, liquids, capsules, pills, injectable pens, hormones, and custom medication types. Revisit the amount, syringe marker, inventory, schedule, and dose-log details you saved.
- Save unlimited protocols with favorites, search, manual sorting, quick load, duplicate, rename, edit, archive, and print options.
- Track medication remaining, vial stock, runout estimates, and dose history across mg, mcg, IU, mL, unit, pill, capsule, drop, spray, and custom units.
- Start with a supported medication template or a custom record, then enter the parameters for an oral medication, nasal spray, injectable, vial, or prefilled pen.
- Schedule a protocol, log a dose, or record an as-needed shot without rebuilding the calculator math from scratch.
Schedules
Calendar and active views for schedules you define
Review what is due from the dates and times you entered, what is coming next, and the status of prior entries. PeptideCalc handles repeating cadences, custom intervals, due-dose logging, missed or skipped status, and active schedule sorting.
- Calendar view shows upcoming peptide, GLP-1, oral, and injectable doses with color-coded indicators for each day.
- Active view keeps every running schedule visible with cadence, next dose time, total adherence, and one-tap drill-in controls.
- Expanded schedule details surface history, pending doses, protocol shortcuts, notification status, syringe setup, injection activity, and iCloud-synced changes across iPhone and iPad.
Previews
Preview schedule dates and titration steps before you save
Review the routine you entered before saving it. Setup previews show which dates the app will schedule, while titration previews map each user-entered change from start value to target value before it appears on the calendar.
- Calendar previews turn a cadence into visible dose dates, reminders, schedule color, and backfill options before the routine is saved.
- Titration previews show start dose, target dose, dose unit, cadence, step size, and the week-by-week progression in one place.
- Review GLP-1, peptide, hormone, supplement, and custom-medication schedule entries before they affect active reminders.
Insights
Connect biometrics, symptoms, and medication levels to the dosing log
The Insights tab places user-entered metrics, symptoms, modeled medication levels, and optional Apple Health biometrics alongside dose records so you can compare the records over time.
- Sync supported Apple Health biometrics into Insights with read-only HealthKit access, including weight, body composition, resting heart rate, and sleep duration.
- Generate mathematical medication-level estimates from the half-life value, logged doses, and scheduled doses supplied to the app.
- Review dose markers, level percentages, and steady-state estimates as recordkeeping models, not clinical pharmacokinetic predictions.
Import, ownership, and support
Bring your history with you, then own the app for life
PeptideCalc is built as a focused iOS medication tracker: calculations, protocols, schedules, insights, optional Apple Health import, iCloud sync, backups, themes, and imports without recurring subscription pressure.
iCloud sync across devices
Optionally sync supported protocols, schedules, dose logs, injection sites, inventory, and Insights records across your signed-in iPhone and iPad.
Apple Health import
Optionally import supported Apple Health biometrics into Insights with read-only HealthKit access. Imported samples stay device-local and are excluded from PeptideCalc iCloud Sync, app-created backups, and exports.
One-time purchase
The U.S. App Store lists PeptideCalc at $4.99 as a one-time purchase. The current app has no subscription, ads, or recurring unlocks.
Themes and dark mode
Choose dark, light, or system appearance, start from multiple theme presets, then fine tune tint and accent colors so the app matches your workflow.
iPhone and iPad
The current app target supports iPhone and iPad on iOS or iPadOS 18.6 and newer.
No Android app
There is no Android or native macOS app. The free single-vial calculator remains available through a modern web browser.
Shotsy export import
Import supported Shotsy CSV and .shotsyjson export files for protocols, schedules, logged shots, injection sites, biometrics, symptoms, and custom metrics where available.
Current App Store rating
PeptideCalc is rated 4.9 out of 5 from 217 US App Store ratings as of August 10, 2026.
Verify the current rating on Apple