FuelStack vs StackDay

FuelStack helps you track your daily supplement intake and stay consistent with your routine. WHAT IT DOES Track which supplements you've taken each day with a simple checklist. Set up notification reminders so you don't forget doses. Get personalized recommendations based on your fitness goals. KEY FEATURES • Daily Checklist - Mark off supplements as you take them throughout the day • Goal-Based Recommendations - Answer a few questions about your training, get supplement suggestions that match • Custom Reminders - Set notifications for different times (morning, pre-workout, post-workout, etc.) • Research Information - Each supplement includes dosage info, benefits, and links to studies • Custom Supplements - Add items not in our library with your own dosage and timing • Offline Support - Track your intake even without internet connection • Weekly Stats - See your adherence percentage and daily streak HOW IT WORKS 1. Complete a quick setup - tell us your fitness goals 2. Add supplements to your daily routine from our library or create custom ones 3. Check them off each day as you take them 4. Set reminder notifications for times that work for your schedule 5. View your weekly tracking stats and streaks THE LIBRARY Includes common supplements with research-backed information: - Proteins (Whey, Casein, Plant-Based) - Performance (Creatine, Beta-Alanine, Caffeine) - Recovery (BCAAs, L-Glutamine, Omega-3) - Vitamins & Minerals (D3, B12, Magnesium, Zinc) - And more Each supplement entry includes typical dosage, timing recommendations, benefits, warnings, and links to research sources. WHO IT'S FOR Built for athletes, gym-goers, and anyone taking multiple supplements who wants to stay organized and consistent. REQUIREMENTS iOS 15.1 or later. Notifications require permission.

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