# StackDay: Supplement & Peptide — Daily Peptide & Vitamin Log > Track daily supplement intake, build streaks, and monitor adherence. (iPhone/iPad app by Fog Hill, LLC.) - Source: https://appshunter.io/ios/app/stackday-supplement-and-peptide/id6761502044 (this page in markdown: same URL + `.md`) - Developer: [Fog Hill, LLC](https://appshunter.io/developer/1496413878) - Category: Health & Fitness - Price: Free with in-app purchases - Rating: 5.00/5 from 5 App Store ratings · 4 written reviews indexed - Age rating: 12+ - Requires: iOS 17.0 · 20 MB - Languages: American English, French (France), German (Germany), Japanese, Brazilian Portuguese, European Spanish - Released: 2026-04-09 - Data updated: 2026-08-14 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/stackday-supplement-and-peptide/id6761502044/reviews.md ## What is StackDay? 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 ## Key features - 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) ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | StackDay Pro Monthly | $4.99 | per month | | StackDay Pro Annual | $49.99 | per year | | StackDay Pro Annual Subscription | $24.99 | per year | | StackDay Pro Monthly Subscription | $4.99 | per month | | Pro Monthly Discount | $3.99 | per month | | Pro Annual Discount | $19.99 | per year | | Pro Weekly | $1.99 | per 7 days | | Pro Weekly Discount | $0.99 | per 7 days | ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/stackday-supplement-and-peptide/id6761502044/reviews.md ### 5/5 — Finally! *2026-04-28* 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. ### 5/5 — Mark *2026-04-20* This is exactly what I needed. Well thought out application. Bravo! ### 5/5 — Amazing way to track ! *2026-04-17* 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! ### 5/5 — Best supplement tracker on iOS *2026-04-15* Has every feature you’d ever want. Nothing else like it. Love the research hub and the AI supplement advisor. Well done 👏 ## Frequently asked questions about StackDay ### 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. ## Version history (last 5 releases) ### 2.1.0 — 2026-07-09 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 ### 2.0.7 — 2026-05-18 Performance improvements and bug fixes. ### 2.0.6 — 2026-05-14 Fixed an issue where disabled reminders could still send notifications. ### 2.0.5 — 2026-05-07 Fixed an issue where disabled reminders could still send notifications. ### 2.0.4 — 2026-04-29 Performance improvements and bug fixes. ## More apps by Fog Hill, LLC - [Slots of Ancient Empires](https://appshunter.io/ios/app/slots-of-ancient-empires/id1496413879) - [Golden Gate Slots Casino](https://appshunter.io/ios/app/golden-gate-slots-casino/id1532621931) - [ReLinkt](https://appshunter.io/ios/app/relinkt/id6758963699) - [CleanSnap: Phone Cleaner](https://appshunter.io/ios/app/cleansnap-phone-cleaner/id6760714919) - [HydroTracker: Water Tracker](https://appshunter.io/ios/app/hydrotracker-water-tracker/id6761381341) All apps by Fog Hill, LLC: https://appshunter.io/developer/1496413878 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*