Comparison

Peptide Tracker by Peptide AI vs PepLog

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

Head to head
About

Peptide Tracker by Peptide AI

Log peptide and GLP-1 doses, track vial levels, and rotate injection sites. An AI coach analyzes your data, suggests experiments, and provides research-backed answers. Sync with wearables and export your history for your clinician.

Highlights
  • Dose logging
  • Vial level tracking
  • Injection site rotation
  • AI coaching
  • Wearable sync
  • Data export
  • Community rooms
Features
Read full description

Peptide AI is a peptide and GLP-1 tracker with an AI coach that reads your own logs. Log every dose in two taps, get reminded when it's due, and rotate injection sites on a 20-site body map, front and back. Track what's left in each vial, pen or pill bottle and get a nudge before you run low. Built for real protocols: BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, GLP-1s like semaglutide, tirzepatide and retatrutide, and 55+ more compounds and blends. REMI, YOUR COACH — Ask about your own data and get answers backed by cited research. Remi reads your meals next to your doses, suggests short experiments and tells you whether they worked. TRACK — Daily check-ins, side effects after each dose, weight in lb or kg, goals and trends. Connect Apple Health, Oura, WHOOP, Garmin or Fitbit for sleep, HRV and recovery. COMMUNITY — Rooms for the compounds people run, and a weekly leaderboard with friends. EXPORT — A PDF of your dose history and health metrics to bring to your clinician. WIDGETS & WATCH — Log your next dose from a Home Screen or Lock Screen widget, or from Apple Watch. Logging doses and tracking your protocol are free. Remi, wearable sync, PDF export and some Track insights need a subscription. Peptide AI is for tracking and education only. It doesn't give medical advice or tell you how much to take: your dose comes from your clinician. Consult a licensed clinician before starting or changing any protocol. Terms of Use: https://peptideai.co/terms Privacy Policy: https://peptideai.co/privacy

About

PepLog

This app helps users manage peptide protocols by providing a private, on-device logbook. Quickly record doses, track vial usage, monitor consistency with streaks and history, and log weight over time. It also includes a unit converter for precise measurements.

Highlights
  • Log doses in seconds
  • Track vial contents and remaining amounts
  • Monitor logging consistency and history
  • Chart weight over time with goals
  • Unit converter for syringe measurements
  • Private, on-device data storage
Features
Read full description

PepLog is a medication reminder & logbook for people who manage a peptide protocol and want to keep track of their progress & history. It's built around one idea: recording a dose should take seconds, right when it happens, the way a food tracker works. WHAT YOU CAN DO • Log a dose in a couple of taps: amount, time, injection site, and a note • Track your vials: see how much you have left as you log, when each vial was mixed, and how long ago. Finished vials remain in your history • Track meals and macros in beta: scan food barcodes, log meals, and keep an eye on your daily totals • Revisit your eating history: tap a day to review, add, or edit meals. Recently scanned foods make repeat entries easier without adding calories until you log them • Progress photos: capture on a repeatable angle, compare any two side by side, and watch your timeline build over months • See what you've invested: record what a vial cost and PepLog shows your spend, your cost per logged dose, and how much of what you mixed you've used • Set reminders on your own schedule, with multiple times a day, and log or snooze straight from the notification • See your consistency: dose-logging streaks, badges, a week view, and a history of everything you've recorded, plus a separate meal streak • Track your weight and hydration over time, with your own optional goals • Make PepLog yours: choose English or Spanish and switch between light and dark mode in Settings NEW IN 1.5.0 • Spanish is here! Share PepLog with Spanish-speaking friends and family • Macro tracking in beta, including barcode scanning, recently scanned foods, meal history, and daily meal celebrations • Optional referral codes during onboarding to support the person who introduced you to PepLog • Improved sign-in and checkout recovery, with protection against repeated checkout taps • Appearance controls are now in Settings • The standalone in-app measurement calculator has been removed PEPLOG PRO PepLog is a subscription app. Choose a yearly plan with a 3-day free trial for eligible subscribers, or a monthly plan with no trial. Prices are always shown in the app before any purchase, payment is handled by Apple, and you can cancel anytime in your App Store settings. Installed before version 1.2? Your access stays as it was. PepLog is a personal record-keeping tool. It does not provide medical advice, dosing recommendations, or treatment guidance, and it does not recommend or endorse any substance. Always consult a qualified healthcare provider before starting, stopping, or changing any regimen. For adults 18+. Questions or feedback? Contact support@trypeplog.com. Privacy Policy: https://www.trypeplog.com/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Peptide Tracker by Peptide AI4 screens
PepLog4 screens

Verdict

The call

The clearest difference is monetization model: PepLog at free against Peptide Tracker by Peptide AI's freemium. PepLog also leads on review sentiment (100% vs 76%). Peptide Tracker by Peptide AI's advantage is update cadence (weekly vs fortnightly) and ratings volume (75 vs 25). On price, rating, ads and in-app purchases 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 by Peptide AI sells 4 in-app purchases, starting at $6.99 per 7 days and PepLog 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

On the App Store both sit at effectively the same score — 4.5 for Peptide Tracker by Peptide AI against 4.4 for PepLog. Both are backed by a comparable volume of ratings — 75 and 25 respectively. Written reviews are what separate them: 76% of Peptide Tracker by Peptide AI's written reviews are positive against 100% of PepLog's.

UpkeepUpdate frequency

Peptide Tracker by Peptide AI ships an update weekly, PepLog fortnightly. Both last shipped on October 31, 2026.

Scorecard4 real differences · 6 level
Peptide Tracker by Peptide AI versus PepLog: the parameters behind the verdict, then further details
ParameterPeptide Tracker by Peptide AIPepLog
PriceFreeFree
Rating4.5 (75 ratings) — better4.4 (25 ratings)
Positive reviews76.5% of reviews100.0% of reviews — better
Number of ratings75 — better25
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size72 MB34 MB
Age rating17+17+
DeveloperPeptide AIMoises Olivares

Customer experience

Peptide Tracker by Peptide AI

All ratings75 ratings
Positive84.0%
Neutral6.7%
Negative9.3%
Written reviews17 reviews
Positive76.5%
Neutral5.9%
Negative17.6%

PepLog

All ratings25 ratings
Positive84.0%
Neutral0.0%
Negative16.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Peptide Tracker by Peptide AI

Subscriptions4
  • Premium Weekly$6.997 Days
  • Premium Monthly7 Days trial$14.991 Month
  • Premium Yearly Offer7 Days trial$29.991 Year
Show 1 more
  • Premium Yearly7 Days trial$59.991 Year
2 purchases

PepLog

Subscriptions2
  • PepLog Pro Monthly$9.991 Month
  • PepLog Pro Yearly3 Days trial$29.991 Year

Questions

Is Peptide Tracker by Peptide AI free?
Peptide Tracker by Peptide AI is free to download, with in-app purchases available.
Is PepLog free?
PepLog is free to download, with in-app purchases available.
Which has better reviews, Peptide Tracker by Peptide AI or PepLog?
Peptide Tracker by Peptide AI is rated higher. Peptide Tracker by Peptide AI averages 4.5 out of 5 from 75 ratings, while PepLog averages 4.4 from 25 ratings.
Do Peptide Tracker by Peptide AI or PepLog have ads?
Neither Peptide Tracker by Peptide AI nor PepLog shows ads.
Which is updated more often, Peptide Tracker by Peptide AI or PepLog?
Peptide Tracker by Peptide AI ships an update weekly, and PepLog fortnightly. Most recently, Peptide Tracker by Peptide AI was updated on October 31, 2026 and PepLog on October 31, 2026.

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