Comparison

PeptidePal vs PepOS

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

Head to head
About

PeptidePal

This app helps users track GLP-1 medications, research peptides, and TRT. It offers a protocol builder, a comprehensive peptide library, and a reconstitution calculator with visual aids. It also includes supply alerts and injection site rotation guidance.

Highlights
  • GLP-1 shot tracking
  • Research peptide tracking
  • TRT tracking
  • Protocol builder
  • Reconstitution calculator
  • Vial inventory & supply alerts
  • Injection site rotation
Features
Read full description

PeptidePal is a peptide and GLP-1 protocol tracker used by over 150,000 people — dose logging, vial inventory, injection site rotation, reconstitution math, scheduling, and a 110+ compound library in one app. Whether you're on a prescribed GLP-1, running your first protocol, or managing several compounds on different schedules, PeptidePal keeps it all in one place. WHY PEPTIDEPAL? ◉ BUILT FOR PROTOCOLS, NOT PILLS: Generic medication apps track one pill, once a day. PeptidePal handles mcg, mg, IU and mL, cycles, on/off weeks, site rotation, and vial lifecycle. ◉ NO DRIFT: Three weeks in, it's easy to lose track of whether you're on day 9 or day 12. PeptidePal keeps the protocol you designed and the protocol you're running the same thing. MAIN FEATURES: ▶ PROTOCOL BUILDER Build from the library or from scratch. Set dose (mcg, mg, IU, mL), frequency (daily, every other day, twice weekly, 5-on/2-off, custom), days, start date, notes, and reminders. Run multiple protocols side by side. ▶ DOSE LOGGING & CALENDAR One tap to log. A week strip and monthly calendar show completed and planned doses, injection site, and time. Streaks keep you consistent. ▶ VIAL INVENTORY & SUPPLY ALERTS Log fill size, concentration, and expiry. PeptidePal projects each vial's run-out date from your live schedule and warns you about a week ahead. ▶ RECONSTITUTION MATH Enter vial size, diluent volume, desired amount, and syringe size. PeptidePal does the mg/mL arithmetic and shows it on a syringe diagram, with an over-capacity warning. Unit conversion only — PeptidePal does not recommend a dose. ▶ INJECTION SITE ROTATION Tap-to-select on an interactive body map, with recently used sites heat-mapped so your rotation is visible at a glance. ▶ COMPOUND LIBRARY 50+ profiles in plain English: mechanism, half-life, research status, reported side effects, and considerations. Every entry states its regulatory status. ▶ PROGRESS & LEVELS Weight and body-composition charts, progress photos with compare and time-lapse, and an estimated on-board level curve from your logged doses. Educational estimate, not a measurement. ▶ AI ADVISOR & COMMUNITY Q&A Short, plain-English answers to educational questions, plus a moderated peer forum. The AI will not recommend a dose, titration, or protocol, and routes medical questions to a provider. You're talking to an AI, not a clinician. Does PeptidePal work with prescribed GLP-1s? Yes — track Ozempic®, Wegovy®, Mounjaro® or Zepbound® with the same scheduling, rotation, and supply tools. Dosing decisions belong with your prescriber. Is my data safe with PeptidePal? Protocol data is stored on your device Progress photos are stripped of metadata before storage Analytics are anonymous — no advertising identifier, no cross-app tracking We do not sell your data or share health information with advertisers Delete your account and all associated data from Settings, in two steps Medical disclaimer PeptidePal is a tracking and educational tool. It does not provide medical advice, diagnosis, or treatment, does not recommend doses or protocols, and is not a substitute for a licensed healthcare provider. Many compounds in the library are not approved by the FDA or other regulators for human use. Always consult a qualified clinician before starting, stopping, or changing anything. 18+ only. SUBSCRIPTION INFO: Free to download. Protocol tracking, the full library, advanced analytics, and AI chat require a subscription. Prices are shown in the app and charged to your Apple ID at confirmation of purchase. Renews automatically unless auto-renew is turned off at least 24 hours before the period ends. Manage or cancel anytime in App Store account settings. Terms: https://peptidepal.health/terms Privacy: https://peptidepal.health/privacy Trademarks are property of their respective owners. PeptidePal is not affiliated with or endorsed by any pharmaceutical manufacturer.

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

PeptidePal4 screens
PepOS4 screens

Verdict

The call

The clearest difference is review sentiment: PepOS at 100% against PeptidePal's 30%. PepOS also leads on ads (none vs shown) and rating (5.0 vs 4.7). PeptidePal's advantage is ratings volume (4.9K vs 1) and update cadence (every 5 days vs fortnightly). On price, 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. PeptidePal sells 19 in-app purchases, starting at $3.99 per 7 days 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 4.7. That said, the two scores are not equally well evidenced: PeptidePal has 4.9K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of PeptidePal's written reviews are positive against 100% of PepOS's.

UpkeepUpdate frequency

PeptidePal ships an update every 5 days, PepOS fortnightly. The most recent releases landed on October 28, 2026 and October 15, 2026 respectively.

Scorecard8 real differences · 3 level
PeptidePal versus PepOS: the parameters behind the verdict, then further details
ParameterPeptidePalPepOS
PriceFreeFree
Rating4.7 (4.9K ratings)5.0 (1 ratings) — better
Positive reviews29.7% of reviews100.0% of reviews — better
Number of ratings4.9K — better1
Update frequencyEvery 5 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#196 — better—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size105 MB29 MB
Age rating12+17+
DeveloperBlank Labs LLCDOHO DIGITAL, LLC

Customer experience

PeptidePal

All ratings4,707 ratings
Positive91.7%
Neutral4.3%
Negative4.0%
Written reviews148 reviews
Positive29.7%
Neutral7.4%
Negative62.8%

PepOS

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

In-app purchases

19 purchases

PeptidePal

Subscriptions19
  • PeptidePal – Weekly$3.997 Days
  • PeptidePal – Weekly$4.997 Days
  • PeptidePal – Monthly2 variants$8.991 Month
Show 16 more
  • PeptidePal – Monthly$9.991 Month
  • PeptidePal – Monthly$11.991 Month
  • PeptidePal – Monthly$12.991 Month
  • PeptidePal – Monthly$14.991 Month
  • PeptidePal – Yearly$19.991 Year
  • PeptidePal – Monthly$19.991 Month
  • PeptidePal – Quarterly$29.993 Months
  • PeptidePal – Yearly$29.991 Year
  • PeptidePal – Yearly$35.991 Year
  • PeptidePal – Yearly3 Days trial$35.991 Year
  • PeptidePal – Quarterly$39.993 Months
  • PeptidePal – Yearly3 Days trial$39.991 Year
  • PeptidePal – Yearly$39.991 Year
  • PeptidePal – Yearly$44.991 Year
  • PeptidePal – Yearly$59.991 Year
  • PeptidePal – Yearly$79.991 Year
2 purchases

PepOS

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

Questions

Is PeptidePal free?
PeptidePal 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, PeptidePal or PepOS?
PepOS is rated higher. PeptidePal averages 4.7 out of 5 from 4.9K ratings, while PepOS averages 5.0 from 1 ratings.
Do PeptidePal or PepOS have ads?
PeptidePal shows ads; PepOS does not.
Which is updated more often, PeptidePal or PepOS?
PeptidePal ships an update every 5 days, and PepOS fortnightly. Most recently, PeptidePal was updated on October 28, 2026 and PepOS on October 15, 2026.

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