Comparison

Peptide Tracker vs Peptide Library and Tracker

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

Head to head
About

Peptide Tracker

This app helps users manage their peptide therapy journey with smart protocol management, progress tracking, and detailed journaling. It offers intelligent analytics, a built-in AI chat assistant, and a user-focused design for optimal organization and motivation.

Highlights
  • Customizable peptide protocols
  • Automatic shot generation
  • Intelligent reminder system
  • Weight loss and muscle growth tracking
  • Detailed journal entries
  • AI chat assistant for therapy questions
Features
Read full description

PeptideKit is a no-nonsense app for anyone serious about their peptide therapy journey. Managing GLP-1 peptides or tracking any other hormone therapy is easier than ever with PeptideKit. It provides the tools you need to stay organized, motivated, and informed. Key Features • Smart Protocol Management Create custom peptide protocols with flexible scheduling (daily, weekly, bi-weekly, monthly, every X days, or custom schedules) Intelligent reminder system with local notifications Track multiple protocols simultaneously with color-coded organization • Comprehensive Progress Tracking Weight Loss Analytics: Track weight changes with detailed charts and statistics — ideal for GLP-1 tracker use cases Muscle Growth Monitoring: Log measurements and strength progress Anti-Aging Metrics: Monitor skin health, energy levels, and vitality markers Hormone Support: Track hormonal balance and related symptoms, including testosterone and other hormone levels Injury Healing: Monitor recovery progress and pain levels Energy & Performance: Log energy levels, workout performance, and stamina Cognitive Support: Track mental clarity, focus, and cognitive function • Advanced Calendar & Commitment Status Interactive calendar with color-coded Commitment status Visual overview of completed, missed, and upcoming injections Monthly Commitment tracking for all protocol frequencies Quick add functionality for manual jab entries • Detailed Journal System Create rich journal entries with dose associations Link specific injections to your daily experiences Track injection sites Search and filter through your therapy history • Intelligent Analytics 7D, 30D, 90D, and yearly progress views Statistical insights and trend analysis Progress charts with customizable date ranges Export capabilities for sharing with healthcare providers Why Choose PeptideKit? • User-Focused Design Intuitive interface designed specifically for peptide and hormone therapy Customizable themes (Light, Dark, System) iPad-optimized with full-screen sheets and navigation • Privacy & Security All data stored locally on your device • Flexibility & Customization Weight tracking in pounds or kilograms Customizable log categories based on your needs Flexible protocol scheduling options • Never Miss a Dose Smart notification system ensures you stay on track with your protocols, whether it's a daily GLP-1 jab or a weekly TRT injection. Receive timely reminders that adapt to your schedule and preferences. Get PeptideKit now — Your Complete Peptide & Hormone Therapy Companion. Medical Disclaimer: The information provided by PeptideKit is for educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendations. Always consult with a qualified healthcare professional before initiating any peptide therapy protocol. Auto-renewable subscriptions EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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

Screenshots

Peptide Tracker4 screens
Peptide Library and Tracker4 screens

Verdict

The call

The clearest difference is monetization model: Peptide Library and Tracker at free against Peptide Tracker's subscription. Peptide Library and Tracker also leads on review sentiment (86% vs 77%) and iOS requirement (16.4 vs 18.6). Peptide Tracker's advantage is ratings volume (307 vs 26). On price, rating, 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. Peptide Tracker sells 7 in-app purchases, starting at $3.99 per 7 days and Peptide Library and Tracker sells 2 in-app purchases, starting at $4.99 per month. 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 Tracker against 4.7 for Peptide Library and Tracker. That said, the two scores are not equally well evidenced: Peptide Tracker has 307 ratings behind it against 26, so its average is the more settled of the two. Written reviews are what separate them: 77% of Peptide Tracker's written reviews are positive against 86% of Peptide Library and Tracker's.

UpkeepUpdate frequency

Peptide Tracker ships an update weekly, Peptide Library and Tracker every 10 days. Both last shipped on October 30, 2026.

Scorecard4 real differences · 6 level
Peptide Tracker versus Peptide Library and Tracker: the parameters behind the verdict, then further details
ParameterPeptide TrackerPeptide Library and Tracker
PriceFreeFree
Rating4.7 (307 ratings)4.7 (26 ratings) — better
Positive reviews77.1% of reviews85.7% of reviews — better
Number of ratings307 — better26
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.616.4 — better
Further details — not scored
Size36 MB78 MB
Age rating12+17+
DeveloperJamal BagaSuperfime LLC

Customer experience

Peptide Tracker

All ratings306 ratings
Positive91.8%
Neutral1.0%
Negative7.2%
Written reviews83 reviews
Positive77.1%
Neutral3.6%
Negative19.3%

Peptide Library and Tracker

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

Bugs and requests

Peptide Tracker

Reported bugs

3 issues
  • 3 weeks' data disappeared
  • Wiped all my Data
  • Notifications do not work

Requested features

1 request
  • Build a protocol with an indefinite cycling period

Peptide Library and Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Peptide Tracker

Subscriptions6
  • Plus Weekly$3.997 Days
  • Plus Weekly3 Days trial$5.997 Days
  • Plus Monthly$9.991 Month
Show 3 more
  • Plus Yearly3 Days trial$39.991 Year
  • Plus Yearly$39.991 Year
  • Plus Yearly$49.991 Year
One-time1
  • Plus Lifetime$69.99
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

Questions

Is Peptide Tracker free?
Peptide Tracker is free to download, with in-app purchases available.
Is Peptide Library and Tracker free?
Peptide Library and Tracker is free to download, with in-app purchases available.
Which has better reviews, Peptide Tracker or Peptide Library and Tracker?
Peptide Library and Tracker is rated higher. Peptide Tracker averages 4.7 out of 5 from 307 ratings, while Peptide Library and Tracker averages 4.7 from 26 ratings.
Do Peptide Tracker or Peptide Library and Tracker have ads?
Neither Peptide Tracker nor Peptide Library and Tracker shows ads.
Which is updated more often, Peptide Tracker or Peptide Library and Tracker?
Peptide Tracker ships an update weekly, and Peptide Library and Tracker every 10 days. Most recently, Peptide Tracker was updated on October 30, 2026 and Peptide Library and Tracker on October 30, 2026.

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