Stackr: Peptide Calculator

Stackr: Peptide Calculator

Dose Tracker & Supply Alerts

8 ratings
3 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • April 17, 2026
  • July 30, 2026

Features

Stackr: Peptide Calculator screenshot #1 for iPhone
Stackr: Peptide Calculator screenshot #2 for iPhone
Stackr: Peptide Calculator screenshot #3 for iPhone
Stackr: Peptide Calculator screenshot #4 for iPhone
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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.

200+ compound library
Reconstitution calculator
Depletion tracking
Protocol grouping
Budget tracking
Dose logging
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What's New in Stackr

1.3.1

July 30, 2026

• Export to CSV — Pro members can now export dose history and inventory as a CSV file. Bring it to an appointment or keep your own records. Find it in Settings › Data. • Cloud backup hardening — tightened security around cloud sync so your data is locked to your account at the database level. • Promo codes fixed — redeeming a promo code works again. • Corrected the version number shown in Settings.

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Subscription plans

Stackr Pro Monthly

Full access to all Stackr Pro features, billed monthly.

$4.991 Month
3 Days trial
How to cancel Stackr subscription ⁉️

User reviews

Needed this

Definitely needed this bc I was tired of writing out my peps and dosages and then forgetting about them bc I didn’t have my book with me. This also helped me figure out when I was going to run out! Super helpful

Best Peptide Tracker

This is the best peptide tracker available. Use this one not the others

The only tracking app I actually stick with

This app makes tracking my vitamins so much more organized and easy to manage. I like that I can track everything in one place without overcomplicating it. It actually makes it easier to stay consistent and feel confident that I’m doing things right.

I am also a type one diabetic and I use this to plan when I’ll need to request a refill on my insulin!

You can tell a lot of thought went into it. It’s simple, but really effective. Definitely worth it if you want a better way to keep track of everything.
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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.