Comparison

StackDay vs Supplement Inventory

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StackDay

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.

Highlights
  • 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)
Features
Read full description

Keep your supplements and peptide doses organized in one daily schedule. Log what you take, get reminders, and review your adherence, weight and wellness over time. YOUR DAY, TOGETHER See supplements and scheduled peptide doses in Today. Build a routine around your wake-up, meals and bedtime, then check off each dose as you take it. A RECORD YOU CAN REVIEW Explore dose history, adherence calendars and progress views. Record weight and wellness check-ins alongside your regimen to spot patterns. Patterns and correlations do not establish cause and effect. PEPTIDE TRACKING Keep records of your protocols, vial use and injection sites. Review past site usage to help plan rotation. Any estimated compound-level chart is illustrative and is not a measured blood level or a guide to when to take a dose. Follow your clinician's instructions. BUILD AND MAINTAIN YOUR STACK Find supplements in the library, add your own items, manage inventory and review supported timing checks. Checks are informational, are not exhaustive and do not establish that a combination is safe. REMINDERS AND WIDGETS Use reminders and supported Home Screen or Lock Screen widgets to keep your routine visible. Reminder timing follows the schedules you enter. BACKUP AND RESTORE Create a full backup in Files and restore your saved regimen and history when needed. Keep backups somewhere safe before replacing or deleting your app. OPTIONAL ONLINE TOOLS Label scanning and the AI Supplement Advisor use online processing. Relevant input is sent to service providers when you use these features. Core tracking records are stored on your device; analytics and subscription services also process data as explained in the Privacy Policy. SUBSCRIPTION ACCESS New users need a StackDay Pro subscription to continue after setup. Available plans, prices and any eligible free trial are shown before purchase. Subscriptions renew automatically unless canceled through your Apple account. Existing users may retain legacy access. MEDICAL DISCLAIMER StackDay is for personal organization and tracking. It does not provide medical advice, diagnose conditions, prescribe treatment or determine safe doses. Verify any calculations independently and consult your healthcare provider before changing a medication, supplement or peptide regimen. Privacy Policy: https://foggy-labs.github.io/privacy/stackday Terms of Use: https://foggy-labs.github.io/terms/stackday Support: https://foggy-labs.github.io/support/stackday

About

Supplement Inventory

Easily manage your supplement intake by scanning barcodes to add items to your digital cabinet. Track daily servings and monitor specific macros with detailed charts. Automatically sync your nutritional data with Apple Health to stay organized and hit your fitness goals.

Highlights
  • Barcode scanning for easy addition
  • Digital supplement cabinet
  • Daily serving tracking
  • Macro monitoring (protein, creatine)
  • Detailed nutritional charts
  • Apple Health synchronization
Features
Read full description

Manage your entire supplement inventory with a single tap. Easily scan barcodes to add protein powders, vitamins, and pre-workouts to your personal digital cabinet. Track your daily servings, monitor specific macros like protein or creatine through detailed charts, and automatically sync your nutritional data with Apple Health. Whether you want to know when it's time to restock your favorites or just want to hit your daily goals, this app keeps your fitness journey perfectly organized.

Screenshots

StackDay4 screens
Supplement Inventory4 screens

Verdict

The call

The clearest difference is price: StackDay at Free against Supplement Inventory's $1.99. StackDay also leads on rating (5.0 vs 1.0) and ratings volume (5 vs 1). Supplement Inventory's advantage is in-app purchases (none vs 8) and ads (none vs shown).

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

StackDay is free to download; Supplement Inventory costs $1.99 up front. StackDay sells 8 in-app purchases, starting at $0.99 per 7 days. Supplement Inventory asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

StackDay holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: StackDay has 5 ratings behind it against 1, so its average is the more settled of the two.

Scorecard8 real differences · 2 level
StackDay versus Supplement Inventory: the parameters behind the verdict, then further details
ParameterStackDaySupplement Inventory
PriceFree — better$1.99
Rating5.0 (5 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings5 — better1
Update frequencyEvery 4 days—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size24 MB30 MB
Age rating17+4+
DeveloperFog Hill, LLCBatikan Bozkurt Kursat

Customer experience

StackDay

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Supplement Inventory

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

8 purchases

StackDay

Subscriptions8
  • Pro Weekly Discount3 Days trial$0.997 Days
  • Pro Weekly$1.997 Days
  • Pro Monthly Discount$3.991 Month
Show 5 more
  • StackDay Pro Monthly$4.991 Month
  • StackDay Pro Monthly Subscription3 Days trial$4.991 Month
  • Pro Annual Discount$19.991 Year
  • StackDay Pro Annual Subscription3 Days trial$24.991 Year
  • StackDay Pro Annual7 Days trial$49.991 Year
None

Supplement Inventory

No in-app purchases

Questions

Is StackDay free?
StackDay is free to download, with in-app purchases available.
Is Supplement Inventory free?
Supplement Inventory costs $1.99, with no in-app purchases.
Which has better reviews, StackDay or Supplement Inventory?
StackDay is rated higher. StackDay averages 5.0 out of 5 from 5 ratings, while Supplement Inventory averages 1.0 from 1 ratings.
Do StackDay or Supplement Inventory have ads?
StackDay shows ads; Supplement Inventory does not.

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