Comparison

Body By Bart 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

Body By Bart

Features
Read full description

Whether you're stepping on stage or striving for your best physique yet or wanting to make a lifestyle change to be healthier, we provide the tools, structure, and support needed to maximize your potential. What You Get: Personalized Coaching, 24/7 Access & accountability , Precision Progress Tracking, App-Based Training , The Body By Bart Team Experience:     •    Exclusive group chat with like-minded athletes for motivation & support     •    Monthly team calls for education     •    Team lifts & in-person team building events to reinforce the brotherhood/sisterhood     •    Mindset & personal development coaching to cultivate a championship mentality At Body By Bart, we prioritize impact over hype. If you're ready to invest in yourself and become your best, we’re ready to take you the *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy Medical Disclaimer: This app does not provide medical advice, diagnoses, or treatment. The information and guidance provided within the app are for general fitness and wellbeing purposes only. Always seek the advice of your physician or other qualified healthcare provider before starting any exercise program, changing your nutrition, or making decisions regarding your health.

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

Screenshots

Body By Bart3 screens
Peptide Library and Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Peptide Library and Tracker at every 11 days against Body By Bart's every 2 months. On price, ads, in-app purchases and device support 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. Body By Bart sells 1 in-app purchase, starting at $149.99 per month and Peptide Library and Tracker sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Body By Bart ships an update every 2 months, Peptide Library and Tracker every 11 days. Both last shipped on November 9, 2026.

Scorecard1 real difference · 9 level
Body By Bart versus Peptide Library and Tracker: the parameters behind the verdict, then further details
ParameterBody By BartPeptide Library and Tracker
PriceFreeFree
Rating—4.8 (28 ratings) — better
Positive reviews—85.7% of reviews
Number of ratings—28 — better
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size56 MB95 MB
Age rating17+17+
Developerbart tompkinsSuperfime LLC

In-app purchases

1 purchases

Body By Bart

Subscriptions1
  • Basic Coaching$149.991 Month
3 purchases

Peptide Library and Tracker

Subscriptions3
  • Peptide Library Pro Monthly3 Days trial$4.991 Month
  • Peptide Library Pro Monthly Offer1 Month trial$4.991 Month
  • Peptide Library Pro Yearly3 Days trial$39.991 Year

Questions

Is Body By Bart free?
Body By Bart 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.
Do Body By Bart or Peptide Library and Tracker have ads?
Neither Body By Bart nor Peptide Library and Tracker shows ads.
Which is updated more often, Body By Bart or Peptide Library and Tracker?
Body By Bart ships an update every 2 months, and Peptide Library and Tracker every 11 days. Most recently, Body By Bart was updated on November 9, 2026 and Peptide Library and Tracker on November 9, 2026.

Other comparisons