Comparison

Pep vs PepStack Pro

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

Head to head
About

Pep

Features
Read full description

Never miss a dose or lose track of your protocol. Pep is the tracker built specifically for peptides, TRT, HRT, and GLP-1 medications. Protocols, reminders, inventory, insights, and a reconstitution calculator, all in one beautifully designed app. YOUR PROTOCOL AT A GLANCE Open Pep and see exactly what's due today: every compound, every dose, in one clean daily view. Log in a single tap, and let the Insights hub turn your history into a real picture of your protocol. Light and dark mode included. TRACK EVERY DOSE, EFFORTLESSLY • One-tap dose logging from your daily view • Flexible scheduling: daily, specific days, custom intervals, or titration schedules that step your dose up automatically • Push reminders for every scheduled dose • Multiple compounds and stacked protocols, side by side • Pause, resume, end, or clone protocols anytime UNDERSTAND YOUR PROTOCOL • Insights & analytics: adherence trends, dose history, and estimated compound levels over time • Injection site tracking with a visual body map, so you can rotate sites with confidence • Symptom logging tied to doses and compounds, so you can spot patterns • Progress photos to see changes over time DIAL IN EVERY DRAW • Reconstitution calculator: know exactly how much bacteriostatic water to add and how many units to draw • Works with vials, pens, tablets, and ampules • Inventory tracking with automatic depletion and low-stock alerts, so you reorder before you run out BUILT FOR YOUR PROTOCOL Whether you're on BPC-157, TB-500, CJC/Ipamorelin, GHK-Cu, testosterone replacement therapy, semaglutide, tirzepatide, retatrutide, or HRT, Pep has you covered. The compound library includes 145+ peptides, TRT medications, and GLP-1s, with pre-built protocol templates to get you started in minutes. HOW IT WORKS 1. Set up your protocol: compounds, doses, frequency, timing 2. Get reminders for every scheduled dose 3. Log with one tap and track how you feel 4. Watch your insights build with every dose 5. Manage inventory and know when to reorder Pep Free includes up to two active protocols. Upgrade to Pep Pro for unlimited active protocols, inventory tracking, insights, templates, and more. Pep is a tracking tool and does not provide medical advice. Always consult a healthcare professional about your treatment. Ditch the spreadsheets, notes, and alarms. Download Pep today. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PepStack Pro

This app provides a comprehensive database of peptides, personalized protocol recommendations, and tools to track your peptide journey. Monitor injections, log progress, and check for interactions to optimize your health and wellness goals safely.

Highlights
  • Peptide database with clinical data
  • Personalized peptide recommendations
  • Interaction checker for peptide safety
  • Physician-designed protocol templates
  • Injection schedule and dose tracking
  • Lab and progress journaling
  • Direct physician connection
Features
Read full description

PepStack Pro is the most comprehensive peptide reference and protocol tracking app available. Whether you're exploring your first peptide or managing an advanced stack, PepStack Pro gives you the clinical data, dosing protocols, and tracking tools you need to optimize safely. PEPTIDE DATABASE Browse 40+ peptides with detailed clinical information including descriptions, mechanisms of action, and side effects. From BPC-157 to semaglutide, GHK-Cu to epithalon — it's all here. PERSONALIZED STACKS Take our guided quiz to find the right peptides for your goals — fat loss, muscle growth, longevity, sleep, cognitive enhancement, healing, and more. Get expert-curated recommendations tailored to your goals. INTERACTION CHECKER Check for potential conflicts between peptides before adding them to your stack. Know what's safe to combine, what needs caution, and what to avoid. PROTOCOL TEMPLATES Start with physician-designed protocol templates for common goals like fat loss, recovery, muscle building, and longevity. One tap to set up your entire protocol. PROTOCOL TRACKER Set up your injection schedule, track your daily doses, and never miss a pin. Full calendar view with cycle tracking, dose amounts, and scheduling by day of the week. INJECTION LOGGER Log every injection with site rotation tracking, mood ratings, and personal notes. Build a complete history of your peptide journey. LAB TRACKER Track bloodwork and lab results over time. Monitor 28+ biomarkers with color-coded reference ranges to ensure your protocols are working safely. PROGRESS JOURNAL Document your journey with notes, mood and energy ratings, and photos. See trends over time and share progress with your provider. DOSING PROTOCOLS (Premium) Unlock detailed dosing protocols, reconstitution guides, cycle lengths, optimal timing, and stacking recommendations for every peptide in the database. PHYSICIAN-GUIDED Connect directly with board-certified physicians specializing in peptide therapy and longevity medicine through our integrated MyFlowMD provider network. DISCLAIMER PepStack Pro is an educational reference tool. It does not provide medical advice, diagnoses, or treatment recommendations. Always consult a qualified healthcare provider before starting any peptide protocol. Terms of Use: https://www.pepstackpro.com/terms

Screenshots

Pep4 screens
PepStack Pro4 screens

Verdict

The call

The clearest difference is update cadence: Pep at every 2 days against PepStack Pro's every 8 days. PepStack Pro's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Pep sells 3 in-app purchases, starting at $6.99 per month and PepStack Pro sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Pep ships an update every 2 days, PepStack Pro every 8 days. The most recent releases landed on September 4, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
Pep versus PepStack Pro: the parameters behind the verdict, then further details
ParameterPepPepStack Pro
PriceFreeFree
Rating—5.0 (11 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—11 — better
Update frequencyEvery 2 days — betterEvery 8 days
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size91 MB39 MB
Age rating17+17+
DeveloperQuriocity Inc.MyFlowMD, LLC

In-app purchases

3 purchases

Pep

Subscriptions2
  • Monthly$6.991 Month
  • Yearly3 Days trial$59.991 Year
One-time1
  • Lifetime$79.99
2 purchases

PepStack Pro

Subscriptions2
  • PepStack Pro Premium7 Days trial$8.991 Month
  • PepStack Pro Premium7 Days trial$49.991 Year

Questions

Is Pep free?
Pep is free to download, with in-app purchases available.
Is PepStack Pro free?
PepStack Pro is free to download, with in-app purchases available.
Do Pep or PepStack Pro have ads?
Neither Pep nor PepStack Pro shows ads.
Which is updated more often, Pep or PepStack Pro?
Pep ships an update every 2 days, and PepStack Pro every 8 days. Most recently, Pep was updated on September 4, 2026 and PepStack Pro on September 13, 2026.

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