Peptide Tracker - Stackr
Calculator, Dose & Stack Log
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Stackr is the simplest way to track peptide and GLP-1 dosing. Upgrade to Stackr+ for estimated level charts, shot planning, home screen widgets, smart reminders, and export reports — start with a 7-day free trial.
Log every dose. Track vials, pens, tablets, and other containers with how much you have left. Get reminders for your next dose. See how half-life shapes estimated active levels in your stack over time.
Built for peptide enthusiasts, GLP-1 patients, and anyone who wants their protocol off paper and into an app that understands supplies and dosing cadence — not a generic habit tracker.
WHY STACKR • Fast dose logging — log from home or tap the widget when you're in a hurry • Supplies — track what's in the fridge (vials, pens, bottles, sprays, and more) with amounts, low-stock alerts, and typical dose size so "doses left" stays honest • Multi-peptide stacks — run BPC-157 alongside a GLP-1 (or anything else you track) in one place • Active levels — visualize estimated active amount over time from your logged doses and each peptide's half-life (educational estimate, not medical guidance) • Reminders & widgets — next-dose reminders that respect your schedule; home-screen widgets for what's due
PEPTIDE LIBRARY Stackr includes reference pages for the most-tracked compounds — semaglutide, tirzepatide, retatrutide, BPC-157, TB-500, MK-677, GHK-Cu, and more. Each page covers typical dosing, half-life, schedule, route, mechanism, and general education. Educational only — Stackr is not medical advice.
REMINDERS THAT FIT YOUR PROTOCOL Set reminders aligned with how you dose — daily, every other day, weekly, or custom intervals. Use widgets to see what's next without opening the app.
SYNC ACROSS YOUR DEVICES Sign in with Apple or email and your data syncs across iPhone and iPad. Encrypted in transit. Your dosing history stays tied to your account — no ads, no selling data to third parties.
BUILT FOR THE PEPTIDE COMMUNITY By a peptide user, for peptide users. If something's missing, the in-app feedback channel goes straight to the founder.
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Disclaimer: Stackr is for personal tracking only and does not provide medical advice. Consult a qualified healthcare provider before starting or modifying any peptide or pharmaceutical protocol.
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A major update is here.
• Progress tracking - log your weight and photos, then scrub through your full transformation on a beautiful timeline.
• Stackr Coach - your built-in AI for peptide protocols, timing, and side effects (Not medical advice)
• Live activity levels - an interactive chart showing what's active in your system right now.
• A faster, cleaner redesign across the whole app.
Thanks for using Stackr - keep the feedback coming!
The developer, Stackr Holdings LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 44.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment Information
- In-App Purchases
Yes
- Stackr+ Weekly 89,00 kr
- Monthly 89,00 kr
- Yearly 599,00 kr
- Provider
Stackr Holdings LLC
- Stackr Holdings LLC has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
- Copyright
- © 2026 Stackr Holdings LLC