Peptide Library and Tracker vs Pep Planner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Comprehensive Peptide Library & Database
- Advanced Peptide Dose Calculator
- Smart Tracking & Calendar View
- Lab Inventory Management
- Protocol Tracking & Lab Assistant
- Integrated Peptide Education
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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
Pep Planner
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Peptide Planner is the all-in-one tool for tracking your peptide protocols, calculating precise doses, and getting AI-powered guidance — all in one clean, easy-to-use app. FEATURES • Protocol Dashboard — track all your active and completed peptide cycles with dose, frequency, and weekly totals at a glance. • Dose Calculator — enter your vial size, BAC water, and dose to instantly get your exact draw amount in units with a visual syringe fill guide. • Vial Tracker — monitor how many doses remain in each vial so you always know when to reorder. • Weekly Log — log each injection and track your weekly adherence with a day-by-day view. • AI Advisor — ask questions about peptide protocols, stacking, reconstitution, and dosing. Powered by Claude AI with real-time research. • Customizable — choose your accent color, save your profile stats (weight, height), and let the AI advisor personalize recommendations to you. FOR RESEARCH PURPOSES ONLY. NOT MEDICAL ADVICE. ALWAYS CONSULT A LICENSED HEALTHCARE PROVIDER BEFORE USING ANY PEPTIDE OR RESEARCH COMPOUND.
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Verdict
The clearest difference is in-app purchases: Pep Planner at none against Peptide Library and Tracker's 2. On price, update cadence, ads 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
Both are free to download. Peptide Library and Tracker sells 2 in-app purchases, starting at $4.99 per month. Pep Planner asks for nothing beyond the download.
Peptide Library and Tracker ships an update every 11 days, Pep Planner every 10 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Peptide Library and Tracker | Pep Planner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (27 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Every 11 days | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 95 MB | 7 MB |
| Age rating | 17+ | 17+ |
| Developer | Superfime LLC | Michael Mejia Portillo |
In-app purchases
Peptide Library and Tracker
- Peptide Library Pro Monthly7 Days trial$4.991 Month
- Peptide Library Pro Yearly7 Days trial$39.991 Year
Pep Planner
No in-app purchases
Questions
Is Peptide Library and Tracker free?
Is Pep Planner free?
Do Peptide Library and Tracker or Pep Planner have ads?
Which is updated more often, Peptide Library and Tracker or Pep Planner?
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