Reconstitution calculator
Enter vial amount, bacteriostatic water, and target dose — get the exact mL and insulin unit draw instantly. mcg, mg, and IU conversions, including ratio-based dosing for blend vials.
StackTrackr
Peptide Tracker
- Category
- Health & Fitness
- Age rating
- 17+
- Requirements
- iPhone & Apple Watch
- Developer
- PeakHaus Fitness LLC
The reconstitution calculator, dose tracker, and protocol manager built for peptides, testosterone, hormone therapy, GLP-1 medications, and research compounds.
Calculate exact syringe draws, build multi-compound protocols, track every injection, and manage vial inventory — all in one app.
Free to download. Requires iOS 26 or later.
Screenshots
Everything the protocol needs
Log from anywhere
Log a dose in seconds without opening the app: Apple Watch, Home Screen and Lock Screen widgets, or Siri. Today's doses live on your wrist.
Protocol management
Daily, every other day, twice weekly, weekly, biweekly, monthly, 5-on-2-off, or fully custom cycles. Run several protocols at once with color-coded organization.
Injection tracking
One tap per dose, with amounts, injection sites, timestamps, and notes. Your complete dose history stays accessible.
Smart vial management
Inventory depletes automatically as you log. StackTrackr draws from your oldest vial first, so nothing expires unused.
Per-protocol streaks
Consistency tracked per protocol, not as one blended score. Retroactive recovery lets you log a missed dose and keep the streak intact.
120+ verified compounds
Molecular weights, standard reconstitution volumes, typical dosing ranges, and storage guidance — every entry fact-checked against published sources.
Progress, journal & Apple Health
Weight, body composition, and custom metrics across 7-day, 30-day, 90-day, and yearly windows. Connect Apple Health for biometric context, and journal how you feel alongside it.
Built for real protocols
- GLP-1 weight management — Semaglutide, Tirzepatide, Retatrutide
- Peptide stacks for recovery, performance, wellness, and anti-aging
- TRT and hormone replacement — testosterone cypionate, enanthate, propionate
- Hormone optimization and endocrine support protocols
- Research compound cycles and complex multi-compound stacks
Subscription
StackTrackr Pro
- Unlimited compounds and protocols
- Custom compound creation
- Blend vial calculator
- Advanced analytics
- Protocol reminders
Your data syncs securely to your account, so your history is safe across devices. No ads.
Get StackTrackr
Available on the App Store for iPhone and Apple Watch.
Legal and support
StackTrackr is for educational and personal tracking purposes only. It does not provide medical advice, diagnosis, or treatment recommendations. Always consult a qualified healthcare provider before starting any protocol.
Apple, the Apple logo, App Store, Apple Watch, Apple Health, and Siri are trademarks of Apple Inc., registered in the U.S. and other countries.