Comparison

Peptide Library and Tracker vs Peptide Tracker

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

Peptide Tracker

This app helps you manage your peptide treatment by tracking schedules, doses, and supply. It offers reminders, progress tracking, and gamified elements to encourage consistency. Data is kept private on your device.

Highlights
  • Built-in library of 30+ peptides
  • Custom peptide addition
  • Dose scheduling and reminders
  • Supply tracking
  • Gamified progress with XP and achievements
  • One-tap logging
Features
Read full description

Peptide Tracker is the simplest way to stay on top of your peptide protocol — schedule, doses, and supply, all in one place — and actually stick with it. Pick a peptide from the built-in library to add it in seconds, then set your own schedule and dose. Tap when you inject, and get a gentle reminder when the next dose is due. No spreadsheets, no guessing when you last injected. WHAT YOU CAN TRACK - A built-in library of 30+ peptides — GLP-1s like semaglutide and tirzepatide, BPC-157, TB-500, testosterone, HCG, growth-hormone peptides, and more - Step plans — enter the dose steps from your prescriber and get a reminder on each step date - Supply tracking — doses left, a "use by" date, and a heads-up when it's time to reorder - Not in the library? Add any custom peptide yourself STAY CONSISTENT - One-tap logging — just hit "Injected" - A countdown timer to your next injection - Push notifications so you never miss a dose - Dose, injection site, and notes saved per peptide - Your full injection history at a glance - On/off cycles, pause anytime, or auto-finish after a set number of injections MAKE IT FUN, NOT A CHORE - Earn XP every time you log a dose, and level up as your protocol runs - Unlock 56 achievements in bronze, silver, and gold — for landing doses on schedule, rotating your injection site, sitting out your own off weeks, and finishing the course you set - Take on a rotating board of daily, weekly, and monthly challenges, built from your own schedule and never asking for more than your plan already does - The Progress tab shows your adherence, how often you're on schedule, and a 90-day trend for every protocol PRIVATE BY DESIGN Everything stays on your device. No account, no sign-up, no data collection. Set it up in under a minute and stay consistent without overthinking it. Peptide Tracker Pro unlocks unlimited peptides and vial & supply tracking. The free version covers one peptide with full scheduling and step plans. Questions or ideas? Hit the contact link in Settings and I'll get back to you fast. Peptide Tracker is a personal logbook and reminder. It does not provide medical advice and does not recommend or calculate doses — you enter your own, from your prescription or protocol. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://makerbox.notion.site/Peptide-Tracker-Privacy-Policy-304d30b69c4481d7a48cf139705b79b5

Screenshots

Peptide Library and Tracker4 screens
Peptide Tracker4 screens

Verdict

The call

The clearest difference is rating: Peptide Library and Tracker at 4.7 against Peptide Tracker's 3.7. Peptide Library and Tracker also leads on review sentiment (86% vs 60%) and monetization model (free vs freemium). Peptide Tracker's advantage is update cadence (every 5 days vs every 11 days). 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. Peptide Library and Tracker sells 2 in-app purchases, starting at $4.99 per month and Peptide Tracker sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Peptide Library and Tracker holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Peptide Library and Tracker has 27 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 86% of Peptide Library and Tracker's written reviews are positive against 60% of Peptide Tracker's.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
Peptide Library and Tracker versus Peptide Tracker: the parameters behind the verdict, then further details
ParameterPeptide Library and TrackerPeptide Tracker
PriceFreeFree
Rating4.7 (27 ratings) — better3.7 (3 ratings)
Positive reviews85.7% of reviews — better60.0% of reviews
Number of ratings27 — better3
Update frequencyEvery 11 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.6
Further details — not scored
Size95 MB20 MB
Age rating17+4+
DeveloperSuperfime LLCDenis Kulkov

Customer experience

Peptide Library and Tracker

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

Peptide Tracker

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

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
4 purchases

Peptide Tracker

Subscriptions3
  • Weekly7 Days trial$3.997 Days
  • Monthly$9.991 Month
  • Yearly7 Days trial$39.991 Year
One-time1
  • Lifetime access$49.99

Questions

Is Peptide Library and Tracker free?
Peptide Library and Tracker is free to download, with in-app purchases available.
Is Peptide Tracker free?
Peptide Tracker is free to download, with in-app purchases available.
Which has better reviews, Peptide Library and Tracker or Peptide Tracker?
Peptide Library and Tracker is rated higher. Peptide Library and Tracker averages 4.7 out of 5 from 27 ratings, while Peptide Tracker averages 3.7 from 3 ratings.
Do Peptide Library and Tracker or Peptide Tracker have ads?
Neither Peptide Library and Tracker nor Peptide Tracker shows ads.
Which is updated more often, Peptide Library and Tracker or Peptide Tracker?
Peptide Library and Tracker ships an update every 11 days, and Peptide Tracker every 5 days. Most recently, Peptide Library and Tracker was updated on November 5, 2026 and Peptide Tracker on November 5, 2026.

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