PeptideCalc for iPhone & iPad
Calculate it.
Save it.
Keep tracking.
Your saved protocols, reminders, dose history, and inventory. Together on your iPhone and iPad.
$4.99 once in the US App Store · No subscription · iOS & iPadOS 18.6 or later



Built for your Apple devices.
Use it on iPhone and iPad. Core calculations and records work offline; optional iCloud sync keeps supported app data on your own devices.
Set up once. Return anytime.
Keep your protocols, schedules, and dose logs connected. Reopen saved details without re-entering every field.
Your data, with clear controls.
Explore local storage and optional sync. No PeptideCalc account is required.
Imported Apple Health samples stay device-local and are excluded from PeptideCalc iCloud Sync, app-created backups, and exports.
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.
Metrics in Insights
What you can track.
26 built-in metrics, plus your own. Record measurements, daily scores, and lab results, then follow them on your charts.
Body composition4
- Weight
- Lean Body Mass
- Body Fat Percentage
- Body Mass Index
Vitals7
- Resting Heart Rate
- Heart Rate
- Heart Rate Variability
- Systolic Blood Pressure
- Diastolic Blood Pressure
- Basal Body Temperature
- Respiratory Rate
Sleep & activity4
- Sleep Duration
- Steps
- Active Energy
- Resting Energy
Daily scores5
- Energy
- Mood
- Libido
- Hunger / Satiety
- Recovery Quality
Lab markers6
- Blood Glucose
- Fasting Glucose
- HbA1c
- Testosterone
- Estrogen
- IGF-1
From Apple Health, too.
Enter records yourself, or import supported measurements from Apple Health with your permission. Daily scores and custom metrics are entered manually.
Insights walkthroughYour own measurements
Custom metrics.
Give a metric a name, choose its units and range, and reuse it for future entries. Your custom metrics appear in the picker and on your charts.
Track waist circumference, skin quality, workout performance, or another number you want to follow.
For example
- Name
- Waist circumference
- Units
- cm
- Range
- You choose
Your metric, ready for the next entry.
How you feel
Symptoms.
Coming in the next app update
Choose a built-in symptom or add your own. Record severity from 1 to 10, when it started, when it resolved, and any notes. Follow your entries in the Symptoms timeline and charts.
Optional daily check-ins give you another way to record how you feel.
13 built-in symptoms. Custom symptoms, too.
- Nausea
- Headache
- Fatigue
- Dizziness
- Constipation
- Diarrhea
- Belching
- Heartburn
- Food Noise
- Suppressed Appetite
- Metallic Taste
- Bloating / GI Discomfort
- Injection Site Pain
The full feature list
What you get.
Everything below is included in the app. A one-time purchase, with no recurring unlocks.
Calculator & medication formats
Save the calculation you use, whether it starts with a vial, pen, liquid, or tablet.
- Visual syringe results with mg, mcg, ng, pg, and IU unit checks
- Automatic Water Amount from your vial content, desired amount, and chosen syringe mark
- Blends with up to four compounds and compatible unit conversions
- U-100, U-50, U-40, U-30, and custom syringe calibrations
- Vials, injectable pens, liquids, tablets, capsules, supplements, and custom medications
- Custom liquid workflows with nasal administration records
Saved protocols
Reopen your setup without entering the same details again.
- Unlimited saved protocols with favorites, search, and sorting
- One-tap calculator loading and inline editing
- Separate variants, notes, linked stock, and remaining amounts
- Schedules and dose history connected to each protocol
Schedules, cycling & titration
Track the dates, intervals, and steps you choose, with a preview before saving.
- Calendar and upcoming-dose views with custom reminder times
- Daily, weekly, bi-weekly, monthly, and custom cadences
- User-defined titration steps with a dose-by-dose preview
- On/off cycling with reminders paused during off windows
- Scheduled and as-needed logging, including backdated entries
- Completed, late, skipped, and missed records with adherence summaries
Metrics, goals & Insights
See your measurements over time and keep your dose history alongside them.
- 26 built-in metrics across body composition, vitals, subjective scores, and lab markers
- Custom metrics with your own name, units, and range
- Manual entries and optional, read-only Apple Health import for supported metrics
- Date-range charts, baseline changes, goals, and achieved milestones
- Protocol overlays and logged, missed, and skipped dose markers
- Medication-level and carryover models from half-life values and dose records
Inventory & supplies
Keep track of your current container, spare stock, and supplies.
- Linked medication inventory with remaining-amount and runout estimates
- Track containers and syringe supplies
- Stock alerts based on containers or estimated days remaining
- Expiration dates and reorder lead times
- Optional automatic loading of the next container when one runs out
Administration site history
See where you recorded previous entries before logging the next one.
- Built-in injection sites and your own custom locations
- Last-used hints and site history attached to dose logs
- Notes saved with each entry
Widgets & appearance
Put your schedule where you can glance at it, and make the app feel like yours.
- Next Dose widgets for the Home Screen and Lock Screen
- Today’s Doses widgets for the Home Screen
- Light and dark mode with theme presets
- Custom theme and accent colors
Backups & exports
Keep restore points and take a readable copy of your history with you.
- Automatic local backups and manual Backup Now
- Restore from saved app backups
- Export dose history as CSV or PDF
- Export supported app data and selected protocols
Privacy & offline use
Core calculations and records work on your device, with clear choices for sharing and sync.
- No ads, subscription, or PeptideCalc account required
- Local storage and offline calculations
- Optional iCloud sync for supported records across your Apple devices
- Apple Health access is optional and read-only; imported samples stay device-local and are excluded from PeptideCalc iCloud Sync, app-created backups, and exports
One-time purchase
Get PeptideCalc.
$4.99 in the US App Store. No subscription, ads, or recurring unlocks.
PeptideCalc performs calculations and recordkeeping from user-entered values. It does not determine whether a medication, dose, schedule, or administration method is appropriate. The native app is available for iPhone and iPad; the free web calculator also works in modern Android and desktop browsers.