# Stackr - Peptide Tracker — Calculator, Dose & Stack Log > App for tracking peptide and GLP-1 doses, supplies, and active levels. (iPhone/iPad app by Stackr Holdings LLC.) - Source: https://appshunter.io/ios/app/stackr-peptide-tracker/id6764821587 (this page in markdown: same URL + `.md`) - Developer: [Stackr Holdings LLC](https://appshunter.io/developer/1896525659) - Category: Health & Fitness, Medical - Price: Free with in-app purchases - Rating: 4.50/5 from 92 App Store ratings · 18 written reviews indexed - Age rating: 12+ - Requires: iOS 17.0 · 58 MB - Languages: American English - Released: 2026-05-09 - Data updated: 2026-08-29 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/stackr-peptide-tracker/id6764821587/reviews.md ## What is Stackr? Stackr is the simplest way to track peptide and GLP-1 dosing. Log every dose. Track vials, pens, tablets, and other containers with how much you have left. Get reminders for your next dose. See how half-life shapes estimated active levels in your stack over time. Built for peptide enthusiasts, GLP-1 users, and anyone who wants their protocol off paper and into an app that understands supplies and dosing cadence — not a generic habit tracker. WHY STACKR • Fast dose logging — log from home or tap the widget when you're in a hurry • Supplies — track what's in the fridge (vials, pens, bottles, sprays, and more) with amounts, low-stock alerts, and typical dose size so "doses left" stays honest • Multi-peptide stacks — run BPC-157 alongside a GLP-1 (or anything else you track) in one place • Active levels — visualize estimated active amount over time from your logged doses and each peptide's half-life (educational estimate, not medical guidance) • Reminders & widgets — next-dose reminders that respect your schedule; home-screen widgets for what's due PEPTIDE LIBRARY Stackr includes reference pages for the most-tracked compounds — semaglutide, tirzepatide, retatrutide, BPC-157, TB-500, MK-677, GHK-Cu, and more. Each page covers typical dosing, half-life, schedule, route, mechanism, and general education. Educational only — Stackr is not medical advice. REMINDERS THAT FIT YOUR PROTOCOL Set reminders aligned with how you dose — daily, every other day, weekly, or custom intervals. Use widgets to see what's next without opening the app. SYNC ACROSS YOUR DEVICES Sign in with Apple or email and your data syncs across iPhone and iPad. Encrypted in transit. Your dosing history stays tied to your account — no ads, no selling data to third parties. BUILT FOR THE PEPTIDE COMMUNITY: By a peptide user, for peptide users. If something's missing, the in-app feedback channel goes straight to the founder. —— Disclaimer: Stackr is for personal tracking only and does not provide medical advice. Consult a qualified healthcare provider before starting or modifying any peptide or pharmaceutical protocol. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ SUBSCRIPTION Stackr is free to download. Full access requires Stackr+, a paid subscription. Estimated level charts, shot planning, home screen widgets, smart reminders, and export reports all require an active Stackr+ subscription and are not available without purchase. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple Account settings. ## Key features - Log peptide and GLP-1 doses - Track vials, pens, and other supplies - Smart reminders for next doses - Home screen widgets - Estimated active level charts - Multi-peptide stack tracking - Reference pages for common compounds ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly | $12.99 | per month | | Stackr+ Yearly | $49.99 | per year | | Stackr+ Yearly | $59.99 | per year | | Yearly | $69.99 | per year | | Stackr+ Weekly | $7.99 | per 7 days | | Stackr+ Yearly | $29.99 | per year | ## Recent user reviews (10 of 18) All indexed reviews: https://appshunter.io/ios/app/stackr-peptide-tracker/id6764821587/reviews.md ### 5/5 — Great app *2026-08-26* Love how simple and useful it is. Makes tracking much easier ### 2/5 — Why the paywalls??? *2026-08-24* Annoying paywalls, after trying to get into the app keep forcing paywalls, had to delete and reinstall over and over, won’t let you close paywalls literally no x, yall don’t follow TOS. I don’t see any reviews talking about it. Paid reviews? Found app on TikTok and thought it was good. Couldn’t do anything without paywall showing up every millisecond and can’t close it so I have to delete and reinstall. Horrible. ### 5/5 — So helpful!! *2026-08-23* Love the features it has! ### 1/5 — Scam *2026-08-22* Got billed when was supposed to be free trial ### 1/5 — Sub *2026-08-21* Honestly sucks that you can’t even test out or see the app before having to pay for a subscription and an especially pricey one at that for what? If the subscription was like a dollar I’d maybe consider but 5 a month for something you could do the same for free on chat gpt is crazy. No free trial or sample experience before having to pay for an app is bogus. **Developer response:** Hey Girlyas, please message us at support@stackrpeptides.com and we can get you subscription to try the app out! We recently introduced free trials and you may have been served the old paywall with no trial. It also costs to develop and maintain the app and invest into marketing so people can discover it, so please keep that in mind. ### 5/5 — Love the app! *2026-08-16* I love this app. It makes it so easy for me to track my peps & I love that I have the reminder when I am running low. The library is a huge plus too! ### 5/5 — Must have!!! *2026-08-16* Love the free reconstitution calculator and library!! I wish I would have had this app before I began my peptide journey - it would have helped SO much! At least I have it now and will never try to track without it again ### 1/5 — Not worth it. Waste of money. *2026-08-12* I just downloaded the app I saw good things about being able to log my doses and schedule. I am new to injecting and thought this would be an amazing app for a beginner. NOPE. DONT WASTE YOUR MONEY. JUST USE YOUR NOTES APP AND GOOGLE SAVE $20 There are so many bugs verbiage is not good. It’s difficult to log multiple peptides and it doesn’t even tell you what’s wrong or why you can’t. If you mess up on a dose oh well you can’t go back and fix it. I was stupid to pay for a subscription for this. and want my money back. I’ve spent about 2 hours in this app trying to figure it out. It doesn’t teach out anything you’re better off just logging it in your notes app on your phone. ChatGPT was more beneficial than this app. all of the information your paying money for can very easily be found with a google search. for $20 I was expecting it to give me information on my peptides, help me understand the configurations better, and understand the conversions. if anything it made it more confusing. **Developer response:** Sorry you had a bad experience with the app. I’d genuinely like to understand what felt confusing or wasn’t useful for you. If you’re open to it, email us at support@stackrpeptides.com and I’d be happy to chat with you directly and hear your feedback. ### 5/5 — Life Changing! *2026-08-10* I’ve lost 75lbs due to how well I’ve been able to follow my protocol. I couldn’t have done without Stackr!! This app is the best! ### 5/5 — Great app *2026-08-05* Love how simple and useful it is. Makes tracking much easier ## Frequently asked questions about Stackr ### What is Peptide Tracker's primary function? Peptide Tracker is designed to help users log their peptide and GLP-1 doses, track remaining supplies in containers like vials and pens, and visualize estimated active levels over time. It aims to provide a more specialized solution than generic habit trackers for managing complex dosing protocols. ### What features are included in the free version of Peptide Tracker? The free version allows for fast dose logging and tracking of supplies such as vials, pens, and bottles, including low-stock alerts. It also supports multi-peptide stacks and provides reminders for your next dose. Users can access basic functionality without a subscription. ### What are the benefits of upgrading to Peptide Tracker+? Stackr+ offers advanced features like estimated active level charts that visualize how half-life affects your levels, shot planning tools, and home screen widgets for quick access. It also includes smart reminders tailored to your schedule and the ability to export reports. ### Does Peptide Tracker offer a free trial for Stackr+? Yes, users can start with a 7-day free trial of Stackr+ to explore its premium features before committing to a subscription. This allows you to test the advanced tracking and planning tools. ### How does Peptide Tracker handle reminders? Peptide Tracker offers reminders that can be set according to your specific dosing schedule, including daily, every other day, weekly, or custom intervals. Home-screen widgets are also available to show what dose is due next without needing to open the app. ### What kind of educational content does Peptide Tracker provide? The app includes reference pages for commonly tracked compounds like semaglutide, tirzepatide, and BPC-157. These pages offer general education on typical dosing, half-life, route, and mechanism, but are strictly for informational purposes and not medical advice. ### Is my data safe with Peptide Tracker? Your dosing history is tied to your account and syncs across iPhone and iPad devices. The app states that data is encrypted in transit, and it does not have ads or sell data to third parties, prioritizing user privacy. ### How often is Peptide Tracker updated? The latest version of Peptide Tracker is 3.0, and it was last updated on June 24, 2026. This indicates a recent update, suggesting ongoing development and support for the application. ## Version history (last 5 releases) ### 3.5.3 — 2026-08-26 New peptides, all requested by you: BPC-157/TB-500, Tesamorelin/Ipamorelin, GHK-Cu/KPV, and Lipo-C/B12 blends, plus Cartalax, Alprostadil, VIP, and PNC-27. Dose reminders got a major fix. They now schedule up to two weeks ahead, fire right away if a dose time passed while the app was closed, and no longer get cleared by mistake. Also smoother onboarding animations. ### 3.5.2 — 2026-08-19 Log past doses in one tap. Pick the day you started, turn on "Repeat until today", and Stackr fills in the whole run without touching your supply counts. Also new: GLOW blend and MIC-B12 in the peptide library. Plus fixes across the app: buttons on the Home and Supplies screens that ignored taps, sign-out landing on a blank screen, and a smoother calendar, top bar, and onboarding. ### 3.5 — 2026-07-31 Big update. Stackr got a full visual upgrade: a cleaner look across the whole app and a smoother experience everywhere. We also fixed critical bugs to keep your tracking rock solid. ### 3.2 — 2026-07-23 Faster onboarding, smarter rating prompts that respect your time, a new Hormone (TRT) category with four testosterone esters, and reliability improvements. ### 3.1.4 — 2026-07-21 Bug fixes and improvements: fixed a sync issue when deleting supplies, improved AI Coach reliability, smoother reminders, and a polished rating experience. ## More apps by Stackr Holdings LLC - [Reframe: App Blocker](https://appshunter.io/ios/app/reframe-app-blocker/id6781956530) - [Kukio](https://appshunter.io/ios/app/kukio/id6799588315) All apps by Stackr Holdings LLC: https://appshunter.io/developer/1896525659 ## Related topics [doseflo peptide dose tracker](https://appshunter.io/ios/topics/doseflo-peptide-dose-tracker) · [free peptide tracker](https://appshunter.io/ios/topics/free-peptide-tracker) · [dose tracking](https://appshunter.io/ios/topics/dose-tracking) --- *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 2026-08-29.*