Stackr: Peptide & Protocol Log
Track Your Supplements & Doses
About
Easily track supplements, peptides, and medications to ensure you never miss a dose or run out. Features include a compound library, reconstitution calculator, depletion tracking, and budget management.
What's New in Stackr
1.3
April 19, 2026
What's new in 1.3: - Fixed dose tracking math for vial-based supplements (TRT, GLP-1s, peptides) — supply now decrements accurately - Rate Stackr button now opens the App Store reliably - Titration schedules save properly - Settings show when cloud-synced items exceed the free plan - Faster boot, smarter sync, and various reliability fixes
MoreSubscription plans
Stackr Pro Monthly
Full access to all Stackr Pro features, billed monthly.
FAQ
What is Stackr?
Stackr is a health and fitness app designed to help users track supplements, peptides, and medications. It offers features like dose logging, depletion tracking, and budget management to ensure users never miss a dose or run out of their supplies.
How accurate is Stackr's compound library?
Stackr includes a library of over 200 compounds with autocomplete functionality, covering peptides, GLP-1s, TRT, HGH, and general supplements. This aims to provide comprehensive and easily accessible information for tracking.
Does Stackr help with calculating doses?
Yes, Stackr features a reconstitution calculator. This tool helps users determine syringe markings based on vial size and BAC water, simplifying the process of preparing and administering precise doses.
Can Stackr help me manage my supplement budget?
Stackr includes budget tracking features that monitor daily costs and calculate an annual run rate for your supplements. This helps users stay aware of their spending and plan their reordering effectively.
What features are included in Stackr Pro?
Stackr Pro unlocks unlimited item tracking, cloud sync across devices, advanced titration support, and more complex protocol management. These features are designed for users who require more extensive tracking capabilities.
How much does Stackr Pro cost?
Stackr Pro is available via subscription. Users can choose a monthly plan for $4.99 or an annual plan for $39.99. The annual plan includes a 3-day free trial.
Can I cancel my Stackr Pro subscription?
Yes, you can manage or cancel your Stackr Pro subscription at any time. Cancellations must be made at least 24 hours before the end of the current billing period through your Apple ID account settings.
What devices does Stackr support?
Stackr is available on iPhone, iPad, and iPod. The app is designed to sync across devices for users who utilize multiple Apple products.