Comparison

Stacker vs PepTrack

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

Head to head
About

Stacker

This app helps you discover, dose, and track peptide protocols for various health goals. It offers curated stacks, personalized schedules, and progress tracking with reminders. Features include a reconstitution calculator and an AI assistant for protocol summaries.

Highlights
  • Personalized stack building
  • Curated stacks with dosage guides
  • Dose and progress tracking
  • Smart dosing schedules and reminders
  • Reconstitution calculator
  • Expert-vetted peptide library
  • AI peptide assistant (Pro)
Features
Read full description

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.

About

PepTrack

Features
Read full description

PepTrack helps you organize personal peptide-related notes and explore educational reference content in one private, easy-to-use app. PERSONAL RECORDS Create and manage records using information you already have. Keep names, notes, dates, and inventory details organized in one place. ROUTINE ORGANIZATION Organize routines that you enter manually and review your saved activity history. PepTrack does not create routines, recommend amounts, or provide treatment guidance. EDUCATIONAL LIBRARY Browse concise educational reference pages covering research context, available evidence, safety notes, and source links. HISTORY AND INSIGHTS Review your records and activity history to keep your personal information organized over time. PRIVATE BY DESIGN Your records are stored locally on your device. No account is required. PEPTRACK PRO Upgrade to PepTrack Pro for: • Unlimited records • Full activity history • Vial notes • Calendar view • Inventory organization • Additional record-management features IMPORTANT PepTrack is intended only for personal record keeping and educational reference. It is not a medical device and does not provide medical advice, diagnosis, dosage guidance, medication calculations, or treatment recommendations. Always follow guidance from a qualified healthcare professional. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current subscription period. You can manage or cancel subscriptions in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stacker4 screens
PepTrack4 screens

Verdict

The call

The clearest difference is ads: PepTrack at none against Stacker's shown. On price, update cadence, in-app purchases and device support 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. Stacker sells 2 in-app purchases, starting at $69.99 per year and PepTrack sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 9 level
Stacker versus PepTrack: the parameters behind the verdict, then further details
ParameterStackerPepTrack
PriceFreeFree
Rating4.8 (25 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings25 — better—
Update frequencyEvery 2 weeksEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better17.6
Further details — not scored
Size51 MB2 MB
Age rating17+17+
DeveloperAbove Capital LLC星燃 余

In-app purchases

2 purchases

Stacker

Subscriptions2
  • Stacker Pro3 Days trial$69.991 Year
  • Stacker Pro3 Days trial$129.991 Year
3 purchases

PepTrack

Subscriptions3
  • Peptide Log Pro (Weekly)$2.997 Days
  • Peptide Log Pro (Monthly)$7.991 Month
  • Peptide Log Pro (Yearly)3 Days trial$49.991 Year

Questions

Is Stacker free?
Stacker is free to download, with in-app purchases available.
Is PepTrack free?
PepTrack is free to download, with in-app purchases available.
Do Stacker or PepTrack have ads?
Stacker shows ads; PepTrack does not.
Which is updated more often, Stacker or PepTrack?
Stacker ships an update every 2 weeks, and PepTrack every 2 weeks. Most recently, Stacker was updated on October 19, 2026 and PepTrack on October 8, 2026.

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