Comparison

Peptide Library and Tracker vs The Peptide App

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 Library is the peptide tracker and peptide research library in one app. Plan your peptide schedule, get reminders, log every entry, keep your vial inventory up to date and look up any peptide, all in one place. Whether you research one peptide or a full stack, Peptide Library keeps your schedules, log history and inventory organized, on your device first. WHY PEPTIDE LIBRARY? ◉ TRACKER AND LIBRARY TOGETHER: read about a peptide, then add it to your schedule and inventory in a couple of taps. ◉ INVENTORY THAT KEEPS UP: every entry you log updates what's left in your vials, capsules and sprays. ◉ BUILT FOR STACKS: several peptides, several forms, each on its own schedule. ◉ PRIVATE BY DEFAULT: works offline, with optional account sync and backup. PEPTIDE TRACKER • Schedules: daily, every other day, chosen weekdays, or cycles with on and off weeks. • Reminders for every scheduled entry, with one tap to log or skip. • Log entries with time, amount and notes; log several at once and undo a log. • Calendar: month and week views of what you logged, missed or skipped. • Separate schedules for each form of a peptide: vial, capsules or nasal spray. • Site rotation on a body map, with a suggested next site. • Research Streak: counts the scheduled days you complete and earns XP. PEPTIDE STACKS AND BLENDS • Track a whole stack, each peptide on its own schedule. • Save blends and log them together. PEPTIDE INVENTORY • Track every vial, capsule, nasal spray and ready-to-use container. • See what's left, estimated uses left, run-out and reorder-by dates. • Low-stock, reorder and expiry alerts. • Save the price, purchase and opened dates, vendor and COA for each container. JOURNAL, PROGRESS AND BODY METRICS • Journal: daily check-ins for mood, energy, sleep and symptoms, with trends and PDF or CSV export. • Progress photos with a guided camera, timeline and side-by-side compare. • Weight, body fat, lean mass and body measurements, with goals and trend charts. • Works with Apple Health: bring in your weight and body fat (optional, read only). PEPTIDE RESEARCH LIBRARY • Peptide profiles with mechanisms, research summaries, half-lives and PubMed references. • Compare peptides side by side and share the comparison. • Peptide School: courses, guides and FAQs. PEPTIDE TRENDS AND COMMUNITY • Peptide Trends: see what the community is researching and popular schedules. • Community Q&A with other researchers. • Compare vendor listings and prices per mg, with vendors that ship to you listed first, and read supplier reviews. WIDGETS • Home Screen, Lock Screen and StandBy widgets for today's schedule, your next entry, your streak and inventory. PEPTIDE LIBRARY PRO Pro unlocks unlimited tracking, blends, courses, progress tools, Peptide Trends, Community, supplier reviews and sync. Choose a monthly or yearly subscription or a one-time lifetime purchase. Prices and any free trial are shown in the app before you buy. Payment is charged to your Apple Account when you confirm the purchase. Subscriptions renew automatically unless turned off at least 24 hours before the end of the current period. Manage or cancel them in your App Store account settings. For research and educational purposes only. Not medical advice. Not for human consumption. Consult a qualified professional before any protocol. Privacy Policy: https://peptidelibrary.app/privacy Terms of Use (EULA): https://peptidelibrary.app/terms

About

The Peptide App

This app helps you manage your peptide vials, create custom schedules with reminders, and track your progress with various health metrics. It also includes a peptide library for research and vendor price comparisons. All features are free to use.

Highlights
  • Manual vial tracking with photos and notes
  • Customizable schedules and reminders
  • Protocol and stack organization
  • Peptide library and research resources
  • Progress tracking for health metrics
  • Vendor price comparison
Features
Read full description

The Peptide App brings your vial records, schedules, reminders, research, and progress together. Every feature is free, with no subscription. Manual vial tracking Keep a personal record of each vial, including its name, label text, photo, supplier, lot, dates, and notes. Choose its status yourself and add dated activity entries. Your records reflect the information you enter. Schedules and reminders Create your own schedule using information you already have. Set your own times, receive reminders, and log, reschedule, or skip an entry. Start a schedule from a vial's name, then review your entries before saving. Protocols and stacks Organize multiple items and keep their schedules together. Peptide library and research Explore educational peptide information and source references. Keep topics 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 review check-ins over time. Vendor prices Browse vendor pricing alongside peptide information. Private by default Your records and photos are yours. We don't sell your data, and you can delete your account anytime. The Peptide App is for educational and informational purposes only and is not medical advice. Always consult a qualified healthcare provider about medication and treatment decisions. 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/

Screenshots

Peptide Library and Tracker4 screens
The Peptide App4 screens

Verdict

The call

The clearest difference is in-app purchases: The Peptide App at none against Peptide Library and Tracker's 2. The Peptide App also leads on update cadence (every 5 days vs every 11 days) and ratings volume (117 vs 27). On price, rating, review sentiment 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. The Peptide App asks for nothing beyond the download.

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 The Peptide App. Both are backed by a comparable volume of ratings — 27 and 117 respectively. Written reviews are what separate them: 86% of Peptide Library and Tracker's written reviews are positive against 90% of The Peptide App's.

UpkeepUpdate frequency

Peptide Library and Tracker ships an update every 11 days, The Peptide App every 5 days. Both last shipped on November 5, 2026.

Scorecard3 real differences · 7 level
Peptide Library and Tracker versus The Peptide App: the parameters behind the verdict, then further details
ParameterPeptide Library and TrackerThe Peptide App
PriceFreeFree
Rating4.7 (27 ratings) — better4.6 (117 ratings)
Positive reviews85.7% of reviews90.5% of reviews — better
Number of ratings27117 — better
Update frequencyEvery 11 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS16.416.0 — better
Further details — not scored
Size95 MB92 MB
Age rating17+17+
DeveloperSuperfime LLCThe Peptide App LLC

Customer experience

Peptide Library and Tracker

All ratings27 ratings
Positive92.6%
Neutral3.7%
Negative3.7%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

The Peptide App

All ratings117 ratings
Positive89.7%
Neutral3.4%
Negative6.8%
Written reviews21 reviews
Positive90.5%
Neutral4.8%
Negative4.8%

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
None

The Peptide App

No in-app purchases

Questions

Is Peptide Library and Tracker free?
Peptide Library and Tracker is free to download, with in-app purchases available.
Is The Peptide App free?
The Peptide App is free to download, with no in-app purchases.
Which has better reviews, Peptide Library and Tracker or The Peptide App?
Peptide Library and Tracker is rated higher. Peptide Library and Tracker averages 4.7 out of 5 from 27 ratings, while The Peptide App averages 4.6 from 117 ratings.
Do Peptide Library and Tracker or The Peptide App have ads?
Neither Peptide Library and Tracker nor The Peptide App shows ads.
Which is updated more often, Peptide Library and Tracker or The Peptide App?
Peptide Library and Tracker ships an update every 11 days, and The Peptide App every 5 days. Most recently, Peptide Library and Tracker was updated on November 5, 2026 and The Peptide App on November 5, 2026.

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