Stacker vs Peppy

Stacker is the peptide stack tracker. It's built to help you find the right stack for your goals, dose it correctly, and track whether it's actually working. Most peptide apps stop at "remind me to dose." Stacker takes you from goal → stack → results. BUILD YOUR PERSONALIZED STACK Tell us your goals — fat loss, muscle, recovery, skin, longevity, sleep — and Stacker recommends a named stack (LEAN, GLOW, Wolverine, KLOW) or the individual peptides that fit. Every stack comes with suggested doses, routes, and schedules you can adjust. CURATED STACKS WITH DOSAGE GUIDES Browse proven stacks with clear, per-peptide dosage guidance and difficulty levels — so you know exactly how to run GLP-3, BPC-157, TB-500, retatrutide, tesamorelin and more, not just what they are. TRACK DOSES & PROGRESS Log every dose in a tap, keep your streak, and watch your "Day X of N" protocol progress. Capture progress photos to see changes over time, and run check-ins on the metrics that matter for your goal. DOSING SCHEDULES & SMART REMINDERS Daily, weekly, or custom — Stacker generates the full schedule, anchors it to your real start date, and sends reminders so you never miss a dose. Evening catch-up nudges keep you honest. RECONSTITUTION CALCULATOR Step-by-step: exactly how much BAC water to add and how many units to draw for your dose — paired with a clear subcutaneous injection guide covering technique and site rotation. EXPERT-VETTED PEPTIDE LIBRARY A growing catalog with mechanisms, dosing ranges, cycle lengths, common stacks, and what to watch for — each peptide with Learn, Schedule, and Sources tabs so you go from research to running it in one place. AI PEPTIDE ASSISTANT Ask anything and get instant, informational protocol summaries and schedule checks. (Stacker Pro) BUY WITH MEMBER PRICING Order products through partner checkout, with member pricing on partnered products. (Stacker Pro) PRIVATE BY DEFAULT Your stacks, metrics, and photos are yours. We don't sell your data, and you can delete your account anytime. Stacker Pro Unlock progress photos, the AI peptide assistant, unlimited tracking, member pricing, and research & news. $69.99/year with a 3-day free trial. Payment is charged to your Apple Account after the trial; auto-renews until canceled. Manage or cancel anytime in Settings. Terms: https://usestacker.app/terms Privacy: https://usestacker.app/privacy Stacker is for educational and informational purposes only and is not medical advice. Always consult a qualified healthcare provider before starting any peptide protocol.

Peppy is the peptide tracker that does the math. Log every GLP-1 and peptide dose, convert your prescribed mg into exact syringe units, organize your vials, rotate injection sites, and get gentle reminders so you never miss a shot. No account. No sign-up. Free to start. Peppy is a peptide tracker, logbook, and unit converter. It is not a medical device and it never recommends a dose. You enter the dose you and your provider already decided on; Peppy records it, converts the units, and keeps you organized and consistent. WHY YOU'LL LOVE PEPPY • No account, no sign-up. Open the app and start tracking in seconds • Your health data stays on your device and in your own private iCloud. Never on our servers • Built for GLP-1 and metabolic peptides, branded or compounded, plus custom peptides you add yourself • A peptide tracker with a clean, uncluttered design and a friendly mascot to keep things light • Thoughtful safety reminders at every step TRACK YOUR DOSES A peptide tracker is only as good as its log. Record every injection and see your full history at a glance: what you took, when, and what's next. Back-date a dose you forgot, spot missed doses, and build a streak week after week. CONVERT MG TO SYRINGE UNITS Enter your vial strength, BAC water volume, and prescribed dose. Peppy shows the exact units to draw on a U-100 insulin syringe, with a visual syringe fill to double-check at a glance. The formula is always shown so you can verify the math yourself, and built-in guardrails flag common mix-ups like mg versus mcg. ORGANIZE YOUR STASH AND VIALS Keep every peptide in one stash, track how much is left in each vial, and watch reconstitution and expiry dates so nothing goes to waste. Set up a new vial from presets in a couple of taps, and get a nudge when it's time to refill. ROTATE INJECTION SITES An interactive body map records where you injected and suggests your next site, so you rotate properly and never overuse one spot. NEVER MISS A DOSE Daily or weekly reminders that fit your routine and adapt as your schedule shifts. Titration-aware, so reminders keep pace as your plan steps up. Home Screen and Lock Screen widgets show your next dose and vial levels without opening the app. TRACK YOUR PROGRESS Log weight and symptoms alongside your doses and see clear trends in simple charts, so you and your provider can see how the plan is going. One peptide tracker for the whole picture. SAFETY FIRST Clear disclaimers appear throughout the app, every conversion reminds you to follow your provider's instructions, and the method is always visible so you can verify it. Peppy never recommends a dose, never sources or sells peptides, and never offers medical advice. Always follow the guidance of your licensed healthcare provider. PRIVATE BY DESIGN Your doses, weight, symptoms, and notes are stored on your device and, if you choose, synced through your own iCloud account. They are never uploaded to our servers, and there is no account to create. We collect anonymous, non-health usage analytics only if you opt in, and an advertising-measurement tool runs only if you allow tracking. See our Privacy Policy for full details. SUBSCRIPTION Peppy offers a subscription with a free trial. Plan options, durations, and prices are shown in the app and may vary by region. Payment is charged to your Apple ID at confirmation of purchase. Your subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms of Use: https://mypeppy.io/terms-of-service Privacy Policy: https://mypeppy.io/privacy-policy Peppy is not affiliated with, endorsed by, or sponsored by any pharmaceutical manufacturer. All product names are trademarks of their respective owners and are used for identification only. Whether you are on a GLP-1 or building a peptide stack, Peppy is the peptide tracker that keeps you organized, consistent, and informed. Download Peppy today.