Comparison

Peptide Library and Tracker vs STACKED

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

Head to head
About

Peptide Library and Tracker

This app serves as a comprehensive guide and lab assistant for peptide research. It offers a detailed peptide library, dose calculation tools, and advanced tracking features for logging, inventory management, and protocol adherence. Users can also access educational content and community Q&A to enhance their research workflow.

Highlights
  • Comprehensive Peptide Library & Database
  • Advanced Peptide Dose Calculator
  • Smart Tracking & Calendar View
  • Lab Inventory Management
  • Protocol Tracking & Lab Assistant
  • Integrated Peptide Education
Features
Read full description

Peptide Tracker and Library The all-in-one peptide calculator, peptide tracker, and research library for protocols, inventory, and precise dosing. Calculate, log, and stay consistent — in one research tool. PEPTIDE CALCULATOR Convert mg, mcg, and IU. Calculate reconstitution, vial concentration, injection volume, and multi-peptide stacks. Save recent calculations for the next session. PEPTIDE TRACKER Log every dose with time and notes. Set schedules and reminders. Use the calendar to review cycles, streaks, and missed doses. Track symptoms and journal entries alongside each protocol. INVENTORY See how much is left in each vial, capsule, or spray. Get low-stock and reorder alerts. Inventory updates when you log a dose. RESEARCH LIBRARY Browse a peptide database with protocols, mechanisms, reconstitution notes, PubMed references, and molecular data. Open Peptide School courses, guides, and FAQs when you want structured learning. VENDOR PRICES Search supported vendors, compare price per mg, check stock, and unlock available discounts — without leaving the app. PROGRESS Log weight, body composition, and progress photos. Charts show how your research notes change over time. BUILT FOR RESEARCH WORKFLOWS Fast search. Offline use. Optional account sync. Local-first storage. For research and educational purposes only. Not medical advice. Not for human consumption. Consult a qualified professional before any protocol. Subscription Information Pro Monthly — $5.99/month Pro Yearly — $49.99/year Subscription auto-renews unless turned off 24 hours before the end of the current period. Manage subscriptions in your App Store account settings. Privacy Policy: https://peptidelibrary.app/privacy EULA: https://peptidelibrary.app/terms

About

STACKED

This app helps you meticulously track peptide doses, schedules, and progress. Log injections, monitor weight and sleep, record nutrition, and access research profiles. Stay informed about your health journey with detailed insights and reminders.

Highlights
  • Log peptide injections with dosage and site
  • Manage multiple peptide vials
  • Set custom dose schedules and reminders
  • Track weight, sleep, and nutrition
  • Record daily mood and energy levels
  • Access peptide research profiles
  • Log and rate side effects
Features
Read full description

Stacked is the premium peptide tracking app designed to help you stay on top of every dose, schedule, and milestone. Full access requires an active Stacked subscription. Track BPC-157, Semaglutide, CJC-1295, or any other peptide. Stacked gives you the tools to log, monitor, and review your progress with ease. TRACK YOUR DOSES: Log every injection with dosage, site, and notes. Manage multiple vials with concentration and remaining units. Set daily, weekly, or custom dose schedules and get reminders so you never miss a dose. MONITOR YOUR PROGRESS: Track weight trends over time. Log sleep quality, duration, and patterns. Record daily nutrition including protein, calories, water, and more. Complete daily check-ins for mood, energy, and sleep quality. STAY INFORMED: Browse 100+ peptide research profiles. Understand mechanisms, research status, and focus areas. Track and log side effects with severity ratings. View your full dose history on a calendar, see your streak, total doses, and active peptides at a glance and export reports to share with your provider. Stacked is strictly a tracker, we help you stay organized and consistent with your existing protocol. We do not create, recommend, or prescribe peptide protocols. For informational purposes only. Not medical advice. Privacy Policy: www.stackedpep.com/policy Terms of Use: www.stackedpep.com/terms

Screenshots

Peptide Library and Tracker4 screens
STACKED4 screens

Verdict

The call

The clearest difference is monetization model: Peptide Library and Tracker at free against STACKED's subscription. On price, rating, ratings volume 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. Peptide Library and Tracker sells 2 in-app purchases, starting at $4.99 per month and STACKED sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Peptide Library and Tracker against 4.6 for STACKED. Both are backed by a comparable volume of ratings — 26 and 52 respectively.

Scorecard1 real difference · 9 level
Peptide Library and Tracker versus STACKED: the parameters behind the verdict, then further details
ParameterPeptide Library and TrackerSTACKED
PriceFreeFree
Rating4.7 (26 ratings) — better4.6 (52 ratings)
Positive reviews85.7% of reviews—
Number of ratings2652 — better
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size78 MB28 MB
Age rating17+12+
DeveloperSuperfime LLCAlexandru Malenchi

Customer experience

Peptide Library and Tracker

All ratings25 ratings
Positive92.0%
Neutral4.0%
Negative4.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

STACKED

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Peptide Library and Tracker

Subscriptions2
  • Peptide Library Pro Monthly7 Days trial$4.991 Month
  • Peptide Library Pro Yearly7 Days trial$39.991 Year
3 purchases

STACKED

Subscriptions3
  • Stacked Premium Weekly$9.997 Days
  • Stacked Premium Yearly Promo$34.991 Year
  • Stacked Premium Yearly$69.991 Year

Questions

Is Peptide Library and Tracker free?
Peptide Library and Tracker is free to download, with in-app purchases available.
Is STACKED free?
STACKED is free to download, with in-app purchases available.
Which has better reviews, Peptide Library and Tracker or STACKED?
Peptide Library and Tracker is rated higher. Peptide Library and Tracker averages 4.7 out of 5 from 26 ratings, while STACKED averages 4.6 from 52 ratings.
Do Peptide Library and Tracker or STACKED have ads?
Neither Peptide Library and Tracker nor STACKED shows ads.

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