Comparison

The Peptide App 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

The Peptide App

Organize and track your peptide protocols with a comprehensive library, a reconstitution calculator, and personalized dose reminders. Log your adherence, review your dosing history, and create custom protocols tailored to your specific needs.

Highlights
  • Protocol library with dosing schedules
  • Reconstitution calculator for bacteriostatic water
  • Dose tracking and personalized reminders
  • Custom protocol builder
  • Activity log for dosing history
Features
Read full description

The Peptide App brings peptide research, reconstitution calculations, vial tracking, protocols, and dose reminders together. Every feature is free, with no subscription. Calculate syringe units, organize your routine, and keep your peptide information in one place. No paywall. Every feature unlocked from day one. Reconstitution calculator Enter your vial amount, water volume, and target dose to calculate how many syringe units to draw. Save your vial details for your next dose. Visual guides explain reconstitution and injection sites. Dose logging and reminders Plan daily, weekly, or cyclical schedules. Get dose reminders, then log, reschedule, or skip a dose in a tap. Keep a timeline of your routine without piecing together notes and calendar entries. Custom protocols and stacks Build your own protocol or explore the app's library. Organize multiple peptides with custom phases, frequencies, and titrations, and keep their schedules together. Peptide library and research Explore peptides and stacks by topic or goal. Read about mechanisms, dosing ranges, cycle lengths, and common combinations, with source references available on peptide pages. Keep the information you want to discuss with your healthcare provider close at hand. Progress tracking Record weight, body measurements, sleep, energy, mood, recovery, lab markers, and other metrics that matter to you. Add progress photos and body scans, and review baseline and follow-up check-ins alongside your dose history. See what changed over time without relying on memory. Vendor prices Browse vendor pricing alongside peptide information to compare available options. Private by default Your protocols, metrics, and photos are yours. We don't sell your data, and you can delete your account anytime. Download The Peptide App and start with the calculator, peptide library, or your own protocol. All free. The Peptide App is for educational and informational purposes only and is not medical advice. Always consult a qualified healthcare provider before starting any peptide protocol. By using The Peptide App you consent to the standard App Store End User License Agreement. 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

The Peptide App4 screens
PepStack Pro4 screens

Verdict

The call

The clearest difference is monetization model: The Peptide App at free against PepStack Pro's freemium. The Peptide App also leads on ratings volume (86 vs 11). PepStack Pro's advantage is rating (5.0 vs 4.7) and device support (3 vs 1). On price, review sentiment, update cadence and ads 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. The Peptide App sells 4 in-app purchases, starting at $4.99 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.

ReceptionRating · Positive reviews · Number of ratings

PepStack Pro holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: The Peptide App has 86 ratings behind it against 11, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

The Peptide App ships an update every 5 days, PepStack Pro every 8 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 6 level
The Peptide App versus PepStack Pro: the parameters behind the verdict, then further details
ParameterThe Peptide AppPepStack Pro
PriceFreeFree
Rating4.7 (86 ratings)5.0 (11 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings86 — better11
Update frequencyEvery 5 days — betterEvery 8 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size95 MB39 MB
Age rating17+17+
DeveloperThe Peptide App LLCMyFlowMD, LLC

Customer experience

The Peptide App

All ratings86 ratings
Positive90.7%
Neutral2.3%
Negative7.0%
Written reviews19 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PepStack Pro

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

The Peptide App

Subscriptions4
  • Monthly Access — Member Rate1 Month trial$4.991 Month
  • The Peptide App Monthly Access1 Month trial$9.991 Month
  • Yearly Access — Member Rate1 Month trial$34.991 Year
Show 1 more
  • Yearly Access1 Month trial$49.991 Year
2 purchases

PepStack Pro

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

Questions

Is The Peptide App free?
The Peptide App is free to download, with in-app purchases available.
Is PepStack Pro free?
PepStack Pro is free to download, with in-app purchases available.
Which has better reviews, The Peptide App or PepStack Pro?
PepStack Pro is rated higher. The Peptide App averages 4.7 out of 5 from 86 ratings, while PepStack Pro averages 5.0 from 11 ratings.
Do The Peptide App or PepStack Pro have ads?
Neither The Peptide App nor PepStack Pro shows ads.
Which is updated more often, The Peptide App or PepStack Pro?
The Peptide App ships an update every 5 days, and PepStack Pro every 8 days. Most recently, The Peptide App was updated on October 10, 2026 and PepStack Pro on October 1, 2026.

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