Comparison

VitaL vs StackDay

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

Head to head
About

VitaL

Easily log daily supplements, organize your vitamin stack, and receive timely reminders to ensure you never miss a dose. This app helps you track inventory, forecast refills, and review your consistency over time with clear insights.

Highlights
  • Instant supplement logging
  • Organize supplement stack
  • Custom dose reminders
  • Forecast refill needs
  • Review consistency history
  • Home Screen widgets
  • iCloud data sync
Features
Read full description

VitaL is a calm supplement tracker built to make your daily routine easier to follow. Log today’s supplements in seconds, keep your stack organized, and get a clearer view of how your routine is holding up over time. VitaL helps you stay aware of what you’ve taken, what still needs attention today, and what may need a refill soon. With VitaL, you can: * Log instantly: Check off today’s doses quickly from a simple, calm Today view. * Organize your stack: Keep all your vitamins and supplements clearly listed in one place. * Never miss a dose: Set custom reminders for your scheduled routines. * Forecast refills: Track inventory and get alerted before your supply runs low. * Spot patterns: Review your history and understand your consistency over time. * Access quickly: Use Home Screen widgets for a fast look at your daily schedule. * Sync seamlessly: Back up and sync your data privately across devices with iCloud. VitaL Pro unlocks even more: * Track an unlimited number of supplements * Access deeper analytics and routine insights * Generate comprehensive Consistency Reports * Export your report to PDF ** Medical disclaimer ** VitaL is a consumer tracking tool for personal supplement routines. It does not provide medical advice, diagnosis, treatment, or supplement recommendations. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ztpala.com/apps/VitaL/privacy-policy/

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

StackDay is the supplement and peptide tracker that finally makes you consistent — check off doses in one tap, watch your streak grow, and see which stacks actually work. NEW: PEPTIDES + PROTOCOLS A dedicated Peptides tab for BPC-157, TB-500, semaglutide, retatrutide, and every peptide in between. • Vial tracking with a 28-day reconstitution countdown • Titration schedules that auto-step your dose week by week for GLP-1s • Active-level curves (Pro) — see estimated compound levels between doses so you know when the next one is really due RECONSTITUTION CALCULATOR Enter your vial strength and BAC water; get exact U-100 syringe units instantly. Reverse mode lets you dial a target dose and see the water to add — no more scribbling on the back of a bottle. INJECTION SITE ROTATION A tappable body map covering all 8 subQ sites. Auto-suggests the most-rested spot every time you log a dose, so you never accidentally double up. DAILY CHECKLIST Your entire stack in one screen, split by morning, meal, afternoon, pre-workout, evening, and bedtime. Tap to check off each supplement. Satisfying haptics every time. 1,000+ SUPPLEMENT LIBRARY Vitamins, minerals, adaptogens, nootropics, mushrooms, and performance compounds — all pre-loaded with common dosages and units. Add your full stack in 30 seconds. Scan any label with your camera (Pro). STREAKS, QUESTS, AND BADGES • 24 illustrated achievement badges spanning streaks, logging milestones, peptides, and exploration • 3 weekly quests that rotate on a fresh cycle every week • Streak Freezes bank automatically at milestones and protect a missed day — because life happens INTERACTIVE WIDGETS • Medium Home Screen widget with tap-to-check-off buttons — mark doses without opening the app • Small widget and Lock Screen widgets for at-a-glance progress • Peptide widget showing your next dose and vial countdown • Mark doses taken right from notifications INTERACTION AWARENESS 16 built-in interaction checks (calcium and iron, coffee and ashwagandha, and more). Timing suggestions space competing supplements hours apart so absorption doesn't fight itself. PROGRESS THAT MEANS SOMETHING • 30-day adherence per supplement — see your true best performers • Monthly heatmap calendar • Wellness correlation (Pro) — spot which supplements actually move your mood, energy, sleep, and focus • Apple Health integration for sleep, steps, and workouts STACKDAY PRO • Unlimited history and full per-supplement stats • Active-level curves for peptides • Custom reminder times for every one of the 8 slots • Label scanner and AI Supplement Advisor • Wellness correlation insights and weekly recaps Free tier includes full daily tracking, 7-day history, slot reminders, and the reconstitution calculator. NOW IN 6 LANGUAGES English, German, Spanish, French, Portuguese, and Japanese — with more on the way. PRIVATE BY DESIGN Your data stays on your iPhone. No account required. Everything is stored locally. Built for anyone who spends money on supplements and peptides but never sees the payoff because they can't stay consistent. Every dose logged. Every streak counted. Every stack proven. Privacy Policy: https://foggy-labs.github.io/privacy/stackday Terms of Use: https://foggy-labs.github.io/terms Support: https://foggy-labs.github.io/support

Screenshots

VitaL4 screens
StackDay4 screens

Verdict

The call

The clearest difference is ads: VitaL at none against StackDay's shown. StackDay's advantage is update cadence (every 3 days vs every 3 weeks) and ratings volume (5 vs 1). On price, rating, in-app purchases and monetization model there is nothing between them.

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

Both are free to download. VitaL sells 2 in-app purchases, starting at $34.99 per year and StackDay sells 8 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for VitaL against 5.0 for StackDay. 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.

UpkeepUpdate frequency

VitaL ships an update every 3 weeks, StackDay every 3 days. The most recent releases landed on August 14, 2026 and September 6, 2026 respectively.

Scorecard3 real differences · 7 level
VitaL versus StackDay: the parameters behind the verdict, then further details
ParameterVitaLStackDay
PriceFreeFree
Rating5.0 (1 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS18.617.0 — better
Further details — not scored
Size6 MB20 MB
Age rating4+12+
DeveloperTao ZhangFog Hill, LLC

Customer experience

VitaL

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

StackDay

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

In-app purchases

2 purchases

VitaL

Subscriptions1
  • Pro Annual7 Days trial$34.991 Year
One-time1
  • Pro Lifetime$119.99
8 purchases

StackDay

Subscriptions8
  • Pro Weekly Discount3 Days trial$0.997 Days
  • Pro Weekly3 Days trial$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

Questions

Is VitaL free?
VitaL is free to download, with in-app purchases available.
Is StackDay free?
StackDay is free to download, with in-app purchases available.
Which has better reviews, VitaL or StackDay?
VitaL and StackDay are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.
Do VitaL or StackDay have ads?
StackDay shows ads; VitaL does not.
Which is updated more often, VitaL or StackDay?
VitaL ships an update every 3 weeks, and StackDay every 3 days. Most recently, VitaL was updated on August 14, 2026 and StackDay on September 6, 2026.

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