Comparison

PeptideJournal 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

PeptideJournal

This app helps you precisely calculate peptide doses, manage your inventory, and track your usage history. It offers smart scheduling and detailed analytics, all while keeping your data private and secure on your device.

Highlights
  • Precision dose calculation
  • Reconstitution simulation
  • Inventory management
  • Dose history tracking
  • Usage analytics
  • Smart scheduling
  • Calendar integration
Features
Read full description

PeptideJournal — Precision Peptide Dosing, Scheduling, Inventory, and Tracking DESCRIPTION: PeptideJournal is a private, precision tracking app for peptide dosing, inventory, historical dose/data tracking and scheduling. Designed for individuals who value accuracy, consistency, and control, all data stays securely on your device with privacy as a core principle. KEY FEATURES: Precision Dose Calculator – Calculate exact doses with an interactive syringe gauge. Supports mg/mcg conversion with real-time volume calculation based on your vial concentration, plus weight logging. Reconstitution Simulator — Plan your reconstitution before mixing. Calculate concentration and doses based on vial size, BAC water volume, and peptide amount. Flexible Reconstitution – Supports single peptides and multi-peptide blends (combo vials) with precise reconstitution and individual component dose calculations. Inventory Management – Track single vials or combo vials (Blends) with accurate remaining volume and dose counts. Swipe to refill, archive, or repeat doses. Dose Entry History – Comprehensive records with timestamps, injection sites, notes, side effects, and benefits tracking. Usage Analytics – Monitor patterns, weight trends, and usage consistency over time. Dashboard Overview – Quick glance at today's scheduled doses, tomorrow's preview, and low-stock alerts. Smart Scheduling – Create flexible schedules: daily, specific days of week, custom on/off cycles, or every X days intervals. Set multiple doses per day with optional notifications. Tap notification banners to instantly log doses and track adherence. Calendar Integration – Visual calendar with scheduled and logged doses, reminders, and schedule management. Advanced Vial Tracking – Multiple vials of the same peptide are tracked independently for maximum accuracy. Complete Privacy – All data stays local on your device. No account required, no subscriptions, no data collection, no external servers. Import & Export – CSV import/export for backup and data portability. Native iOS Design – Built exclusively for iOS with SwiftUI and SwiftData. PERFECT FOR: Personal record keeping Tracking usage patterns Monitoring inventory levels Maintaining detailed logs Scheduling and adherence tracking Managing complex protocols Secure data management IMPORTANT MEDICAL DISCLAIMER: PeptideJournal is a personal tracking and logging tool only. It does not provide medical advice, diagnosis, or treatment recommendations. Always consult qualified healthcare professionals before making any medical decisions. This app is for personal record-keeping purposes only. PRIVACY & SECURITY: Your personal data never leaves your device. No account required, no subscriptions, no data collection, no external servers. Download PeptideJournal today and start your personal tracking journey with confidence and privacy.

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

PeptideJournal4 screens
Peptide Library and Tracker4 screens

Verdict

The call

The clearest difference is price: Peptide Library and Tracker at Free against PeptideJournal's $5.99. Peptide Library and Tracker also leads on rating (4.7 vs 4.3) and review sentiment (86% vs 63%). PeptideJournal's advantage is in-app purchases (none vs 2) and chart position (#194 vs unranked). On ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Peptide Library and Tracker is free to download; PeptideJournal costs $5.99 up front. Peptide Library and Tracker sells 2 in-app purchases, starting at $4.99 per month. PeptideJournal asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Peptide Library and Tracker holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 20 and 26 respectively. Written reviews point the same way: 63% of PeptideJournal's written reviews are positive against 86% of Peptide Library and Tracker's.

UpkeepUpdate frequency

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

Scorecard6 real differences · 5 level
PeptideJournal versus Peptide Library and Tracker: the parameters behind the verdict, then further details
ParameterPeptideJournalPeptide Library and Tracker
Price$5.99Free — better
Rating4.3 (20 ratings)4.7 (26 ratings) — better
Positive reviews62.5% of reviews85.7% of reviews — better
Number of ratings2026 — better
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
Best chart rank#194 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.4 — better
Further details — not scored
Size12 MB78 MB
Age rating17+17+
DeveloperChristopher MadridSuperfime LLC

Customer experience

PeptideJournal

All ratings20 ratings
Positive80.0%
Neutral5.0%
Negative15.0%
Written reviews8 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

Peptide Library and Tracker

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

In-app purchases

None

PeptideJournal

No 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

Questions

Is PeptideJournal free?
PeptideJournal costs $5.99, with no in-app purchases.
Is Peptide Library and Tracker free?
Peptide Library and Tracker is free to download, with in-app purchases available.
Which has better reviews, PeptideJournal or Peptide Library and Tracker?
Peptide Library and Tracker is rated higher. PeptideJournal averages 4.3 out of 5 from 20 ratings, while Peptide Library and Tracker averages 4.7 from 26 ratings.
Do PeptideJournal or Peptide Library and Tracker have ads?
Neither PeptideJournal nor Peptide Library and Tracker shows ads.
Which is updated more often, PeptideJournal or Peptide Library and Tracker?
PeptideJournal ships an update weekly, and Peptide Library and Tracker every 10 days. Most recently, PeptideJournal was updated on October 30, 2026 and Peptide Library and Tracker on October 30, 2026.

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