What’s left in the vial?
Track remaining amounts and stock, with supply estimates based on your inventory and logged doses.
Inventory trackingPeptideCalc for iPhone & iPad
More than
a calculator.
Save your protocols. Set your reminders. Track every logged dose. All the details you’d otherwise have to remember, in one app.
Pay once. No subscription. No ads.
4.9/5245 App Store ratings
One purchase. The whole app.No account to createWorks offlineMade for iPhone & iPad
The Insights tab
Your metrics.
Over time.
26 built-in metrics, from body composition and heart rate to sleep, mood, and lab results. Add your own metrics and graph your entries alongside logged doses.
Example app records. Medication levels are mathematical estimates, not blood tests or clinical predictions.
- Built-in metrics. Your own, too.
- Add entries manually or import supported metrics from Apple Health. Set goals and follow changes from your baseline.
- Keep the dose history in view.
- Overlay protocols on your charts. See logged, missed, and skipped dose markers across the date range you choose.
- Go deeper with medication levels.
- Explore modeled levels, carryover, and repeating patterns using half-life values and your dose records.
Inside PeptideCalc
One place for
every protocol.
Save the vial details you use, reopen a calculation in one tap, and keep your schedules and dose records connected.
Explore protocol & dose tracking01 / Calculator
See exactly where to draw.
Enter your vial details and desired amount. See the concentration, volume, and syringe marking together, then save your setup for next time.
- Visual syringe guidance
- Unit conversions from your entries
- Vials, pens, liquids, and multi-compound workflows
02 / Protocols
Skip the repeat setup.
Keep your user-entered protocols in one searchable library. Reopen a calculation, check supply, or log an entry without starting over.
- Favorites, search, and sorting
- Saved calculation details and inventory
- Quick access to schedules and dose logs
03 / Schedules
Check what’s next. Log what happened.
See the dates and times you enter in a calendar. Add reminders, mark an entry complete or skipped, and return to the history later.
- Custom intervals, cycling, and titration previews
- Scheduled and as-needed dose logging
- Calendar views, reminders, and entry history
04 / Insights
Follow the trends in your records.
Chart your metrics, overlay dose records, and set goals. Add custom metrics for the things you want to track, with optional Apple Health import.
- Built-in and custom metrics with goals
- Dose markers and protocol overlays
- Half-life models from your recorded doses
The details you track
Less to keep
in your head.
Keep a record you can check before your next entry.
Where did you log it last time?
Review administration site history and notes alongside your dose records.
Injection site historyYour records stay yours.
Core app records stay on your device by default. iCloud sync and read-only Apple Health import are optional.
Apple Health data handling
Imported Apple Health samples stay device-local and are excluded from PeptideCalc iCloud Sync, app-created backups, and exports.
Also in the app
More ways
to keep track.
Blends, pens & more.
Calculate blends with up to four compounds. Save setups for vials, pens, liquids, tablets, and custom medications.
Calculator formatsCycling. Titration. Your intervals.
Enter on/off periods and titration steps, preview the dates and amounts, and set the reminders you want.
Schedule optionsLog it when it happens.
Record scheduled or as-needed doses, add notes and a site, or backdate an entry you want in your history.
Dose loggingA glance at what’s next.
Keep Next Dose on your Home Screen or Lock Screen, and see Today’s Doses in a Home Screen widget.
App widgetsThe stock. The supplies.
Track containers, remaining amounts, syringe supplies, and expiration dates. Set alerts for the stock level you choose.
Inventory & stock alertsA copy when you need it.
Keep automatic local backups and export your dose history as CSV or PDF. Optional iCloud sync connects supported records.
Backups & exportsChoose what you need
Free calculator.
Full tracking app.
Use the browser for a quick single-vial calculation. Get the app when you want to save your setup and keep tracking.
Open the free web calculator| Feature | WebFree | iOS app$4.99 once |
|---|---|---|
| Single-vial concentration & syringe calculations | Included | Included |
| Saved protocols & multi-compound calculations | Not included | Included |
| Schedules, reminders & dose history | Not included | Included |
| Inventory & injection site records | Not included | Included |
| Custom metrics, goals & modeled medication levels | Not included | Included |
| Widgets, local backups & CSV/PDF history exports | Not included | Included |
PeptideCalciPhone & iPad / iOS 18.6+
All of it.
For $4.99.
One purchase in the US App Store.
No subscription, ads, or PeptideCalc account.
Get started.
All tutorialsPeptideCalc calculates and keeps records from the values you enter. It does not choose a medication, dose, or schedule. Follow your product instructions and consult a qualified healthcare professional about medical decisions.
App Store price and rating checked October 3, 2026. US pricing and ratings shown; availability varies by region.