StackGuard
10+ supplement stack tracker
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
It's 2am. You're Googling 'magnesium + zinc absorption' for the third time this week. StackGuard tracks your 10+ supplement stack and spots overlap before it happens.
For people stacking 10+ supplements who worry about overlap and overdose risk.
It's 2am. You're Googling 'magnesium + zinc absorption' for the third time this week. You take 11 supplements daily and you're not entirely sure they aren't canceling each other out.
StackGuard is built for serious supplement users — biohackers, nootropic stackers, athletes managing recovery protocols. If you've ever opened a spreadsheet at midnight to figure out whether your B6 dose is too high, this app is for you.
WHAT IT DOES
- Track 10+ supplements with timing and dosage
- Spot overlap before it happens (magnesium + zinc absorption conflicts, etc.)
- Detect overdose risk against NIH DSLD upper limits
- See effects over weeks — what's actually working
- Color-coded daily schedule for morning/midday/evening stacks
WHY IT EXISTS
Built by a solo dev who stacks 11 supplements daily and got tired of opening 6 browser tabs every time he added a new one. Made with paranoia. For paranoid users.
DATA SOURCES
- US NIH Dietary Supplement Label Database (DSLD)
- Korean MFDS supplement registry
- Conflict detection based on published absorption interaction research
PRIVACY
Your supplement data stays on your device. No analytics tracking what you take. No selling data to vitamin companies.
WHO IT'S NOT FOR
If you take 1-3 supplements casually, you probably don't need this. StackGuard is for the person whose pill organizer has more than 7 compartments.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
v1.4.0 — StackGuard rebrand
- New app name in English: StackGuard
- Built for people stacking 10+ supplements
- Sharper messaging for serious supplement users
- Same core features: track stack, spot overlap, detect overdose risk
The developer, Changmin Kwak, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Changmin Kwak
- Size
- 31.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Korean
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 Seoulful