Comparison

Peptide Tracker & Calculator vs PepOS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Peptide Tracker & Calculator

This app helps you meticulously track and calculate peptide dosages, inventory, and injection sites. It provides smart alerts for low stock and detailed logs of your usage history for research, fitness, or therapeutic protocols. Your data is stored securely and privately on your device.

Highlights
  • Comprehensive peptide inventory management
  • Precise dosing log and calculation support
  • Intelligent injection site rotation tracking
  • Smart low stock alerts
  • Detailed dose history review
  • Secure local data storage
Features
Read full description

The Ultimate Peptide Tracker & Calculator for All Your Protocols Take control of your peptide journey! Whether you're deep into peptide research, optimizing for fitness with performance peptides, aiding recovery with compounds like BPC-157 or TB-500, exploring biohacking protocols, or managing GLP-1 agonists like Semaglutide and Tirzepatide, Peptide Tracker & Calculator is your essential management tool. Stop relying on messy notes or complex spreadsheets – track everything accurately in one secure, easy-to-use app. Comprehensive Peptide Inventory Management: Log Any Peptide: Maintain a detailed database of all your compounds – from research peptides and GHRP/GHRH analogs (like CJC-1295 or Ipamorelin) to healing peptides and GLP-1s. Track Critical Vial Data: Record concentration (mg/mcg), units, vial size (ml), diluent (e.g., BAC water), date, storage conditions (fridge/freezer), source, batch number, and expiration dates. Essential for consistency and safety across all peptide protocols. Smart Low Stock Alerts: Visual indicators warn you when any peptide vial is running low, helping you reorder before interrupting your research, peptide cycle, or therapy. Precise Dose Logging: Accurate Dose Recording: Log every administration with meticulous detail: specific peptide used, dose amount (mg/mcg/IU), date/time, method/site (subcutaneous, intramuscular), and personal notes for context (e.g., "pre-workout," "post-injury"). Complete Dose History: Review your entire usage history for any tracked peptide. Filter logs by compound (e.g., view all BPC-157 doses) to analyze patterns, effectiveness, and adherence. Perfect for managing complex peptide stacks or cycles. Intelligent Injection Site Rotation: Smart Site Tracking: Maintain a personalized map of injection sites with customizable rest periods for optimal absorption and tissue recovery. Rotation Recommendations: Receive intelligent suggestions for your next injection site based on usage history and proper rotation patterns. Site Status Monitoring: Color-coded indicators show which sites are ready for use, need rest, or are inactive, helping prevent site overuse and associated complications. Find Information Instantly: Quick Search: Locate specific peptides, inventory details, or past dose logs in seconds. Privacy You Can Trust: Your peptide usage and research data are confidential. All information entered into Peptide Tracker & Calculator is stored securely and locally on your device only. We never access, collect, or store your personal data. Master Your Peptide Regimen: Peptide Tracker & Calculator is the indispensable tool for researchers, athletes, biohackers, and anyone utilizing peptides for performance, recovery, longevity, or wellness. Download today and bring precision and organization to your peptide management! Subscription Information: • Monthly and annual subscription options available • Annual subscription includes a 3-day free trial • Payment will be charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period • Account will be charged for renewal within 24 hours prior to the end of the current period • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription Privacy Policy: https://glp1.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PepOS

Track peptide doses, build custom protocols, and monitor your body's response with AI insights. Integrates with Apple Health for comprehensive optimization tracking. Not medical advice.

Highlights
  • AI peptide intelligence
  • Protocol builder
  • Apple Health integration
  • Vial inventory tracking
  • Injection site rotation
  • Progress tracking
  • AI insights and reports
Features
Read full description

PepOS is the peptide protocol command center for biohackers who take optimization seriously. PepOS is an educational tracking and journal app. Not medical advice. Always consult a licensed healthcare provider before starting any peptide protocol. Track every dose, vial, and outcome. Build protocols by hand or let AI design them based on your goals. Close your daily rings — Execution, Progress, Recovery — and watch your 7-day optimization score climb. APPLE HEALTH + AI INSIGHTS Connect PepOS to Apple Health to see how your protocols are actually affecting your body. PepOS reads your weight, body composition, resting heart rate, HRV, and sleep data on your device and shows you trends alongside your peptide timeline. Weight entries you log in PepOS sync back to Apple Health automatically. With your separate permission, Peppy — our AI assistant — can also use a 30-day summary of your Health metrics to give protocol-specific insights ("your HRV has improved 14 ms since starting your current protocol") instead of generic advice. AI data sharing is optional, granular, and can be turned off anytime without disconnecting Apple Health. Your health data is never shared with advertisers and never used to train AI models. KEY FEATURES 260+ peptide library with detailed profiles, mechanisms, and educational dosing references Peppy — your AI peptide coach who knows your stack, your goals, and your history Smart protocol builder — manual, titration, on/off cycling, and transition planning Vial inventory tracking with cost-per-dose intelligence Injection site rotation across 8 regions with visual heatmap Daily check-ins for sleep, mood, energy, and side effects Blood work tracking with marker trends over time Progress photos with AI body composition analysis Weekly intelligence reports synthesized by AI Calendar sync, dose reminders, and protocol scheduling SUBSCRIPTION TIERS Free — 3 protocols, basic AI chat, 2 vials PepOS Intelligence ($9.99/mo or $59.99/yr, save 50%) — Unlimited protocols, unlimited AI, blood work tracking, AI blood analyzer, AI vial scanner, progress photo analysis, voice input, calendar sync, protocol sharing, transition planner, weekly intelligence reports, and priority AI Built by biohackers, for biohackers who don't settle for spreadsheets. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://app.pepos.app/privacy

Screenshots

Peptide Tracker & Calculator4 screens
PepOS4 screens

Verdict

The call

The clearest difference is review sentiment: PepOS at 100% against Peptide Tracker & Calculator's 71%. PepOS also leads on rating (5.0 vs 4.8). Peptide Tracker & Calculator's advantage is update cadence (every 2 days vs fortnightly) and ratings volume (593 vs 1). On price, ads, in-app purchases and monetization model 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 Tracker & Calculator sells 4 in-app purchases, starting at $3.99 per month and PepOS sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

PepOS holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Peptide Tracker & Calculator has 593 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Peptide Tracker & Calculator's written reviews are positive against 100% of PepOS's.

UpkeepUpdate frequency

Peptide Tracker & Calculator ships an update every 2 days, PepOS fortnightly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Peptide Tracker & Calculator versus PepOS: the parameters behind the verdict, then further details
ParameterPeptide Tracker & CalculatorPepOS
PriceFreeFree
Rating4.8 (593 ratings)5.0 (1 ratings) — better
Positive reviews71.2% of reviews100.0% of reviews — better
Number of ratings593 — better1
Update frequencyEvery 2 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size69 MB29 MB
Age rating12+17+
DeveloperDavid DzeveckijDOHO DIGITAL, LLC

Customer experience

Peptide Tracker & Calculator

All ratings593 ratings
Positive93.8%
Neutral3.0%
Negative3.2%
Written reviews66 reviews
Positive71.2%
Neutral13.6%
Negative15.2%

PepOS

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Peptide Tracker & Calculator

Subscriptions4
  • Full App Access (Monthly)$3.991 Month
  • Full App Access (Monthly)$4.991 Month
  • Full App Access (Yearly)3 Days trial$19.991 Year
Show 1 more
  • Full App Access (Yearly)3 Days trial$24.991 Year
2 purchases

PepOS

Subscriptions2
  • PepOS Intelligence14 Days trial$9.991 Month
  • PepOS Intelligence14 Days trial$59.991 Year

Questions

Is Peptide Tracker & Calculator free?
Peptide Tracker & Calculator is free to download, with in-app purchases available.
Is PepOS free?
PepOS is free to download, with in-app purchases available.
Which has better reviews, Peptide Tracker & Calculator or PepOS?
PepOS is rated higher. Peptide Tracker & Calculator averages 4.8 out of 5 from 593 ratings, while PepOS averages 5.0 from 1 ratings.
Do Peptide Tracker & Calculator or PepOS have ads?
Neither Peptide Tracker & Calculator nor PepOS shows ads.
Which is updated more often, Peptide Tracker & Calculator or PepOS?
Peptide Tracker & Calculator ships an update every 2 days, and PepOS fortnightly. Most recently, Peptide Tracker & Calculator was updated on November 6, 2026 and PepOS on October 31, 2026.

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