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StackDay: Supplement & Peptide

StackDay: Supplement & Peptide

Daily Peptide & Vitamin Log

5 ratings
4 reviews
With Ads
💪 Health & Fitness
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • April 9, 2026
  • July 9, 2026

Features

Developer

Fog Hill, LLC
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🧾$0.99 - $24.99
In-App Purchase↘︎
⭐4
Reviews↘︎
❓8 answered
FAQ↘︎
📦~ in 3 days
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About

This app helps you consistently take your vitamins and supplements. Log doses, build streaks, and view your adherence over time. It offers smart reminders and pre-loaded supplement information to make tracking easy.

✓Daily checklist for all supplements
✓50+ pre-loaded supplements
✓Streak and adherence statistics
✓Customizable smart reminders
✓Local data storage for privacy
✓Home screen widget (Pro)
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What's New in StackDay

2.1.0

July 9, 2026

The biggest StackDay update yet: • NEW Peptides tab — protocols, vial tracking with 28-day reconstitution countdown, and titration schedules for GLP-1s • Reconstitution calculator — vial size + water in, exact syringe units out (with reverse mode) • Injection site rotation with a tappable body map that suggests the most-rested site • 24 illustrated badges, weekly quests, and Streak Freezes that protect a missed day • Active-level curves (Pro) — see estimated compound levels between doses • Interactive widgets — check off doses from your Home Screen and Lock Screen • Mark doses taken right from notifications • Now in German, Spanish, French, Portuguese, and Japanese

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Subscription plans

StackDay Pro Annual Subscription

Annual subscription to StackDay Pro. Best value.

$24.991 Year
3 Days trial
How to cancel StackDay subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Finally!

I have been looking for an effective way to track my supplements for years. And then StackDay showed up and saved the day. Big props to the developer for solving such a key issue. Looking forward to seeing what else they come up with.
Hlh5yeHlh5ye

Mark

This is exactly what I needed. Well thought out application. Bravo!
msd444msd444

Amazing way to track !

This app has been such a game changer during my pregnancy. It keeps all my supplements organized and easy to track, which takes so much mental load off my day. I also love that it’s helped me understand what I may be missing and stay consistent with my routine. It’s simple, helpful, and exactly what I needed!!! Will def use post pregnancy as well!
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natalie685natalie685

Best supplement tracker on iOS

Has every feature you’d ever want. Nothing else like it. Love the research hub and the AI supplement advisor. Well done 👏
ben_new-yorkben_new-york

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FAQ

What is StackDay?

StackDay is a supplement tracker designed to help you remember and consistently take your daily vitamins and other supplements. It allows you to log doses, build streaks, and monitor your adherence over time.

Does StackDay have ads?

No, StackDay does not contain advertisements. The app is free to use with an optional Pro subscription for advanced features.

What are the subscription options for StackDay Pro?

StackDay Pro offers several subscription plans, including weekly and monthly options, with some plans providing a discount. Free trials are available for some weekly and monthly subscriptions.

How does StackDay track my supplement intake?

StackDay provides a daily checklist where you can tap to mark each supplement as taken throughout the day. It also offers smart reminders to prompt you at specific times.

Is my data private with StackDay?

Yes, StackDay is designed with privacy in mind. All your data is stored locally on your iPhone, and no account is required for basic use. There is no cloud sync.

What features are included in the free version of StackDay?

The free tier of StackDay includes full daily tracking, a 7-day history of your supplement intake, and the ability to set up to 3 reminders.

How often is StackDay updated?

The latest version of StackDay is 2.0.7, which was released on May 18, 2026. Updates typically occur to improve functionality and add new features.

What age rating does StackDay have?

StackDay has an age rating of 12+, making it suitable for teenagers and adults looking to manage their supplement routines.