Peptide Tracker vs PepCheck AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Peptide Tracker
Log peptide doses, track your progress, and analyze your body's response with this research log. Integrate with health data, manage supplies, and access educational summaries on various peptides. Share insights with a community of users.
- Log peptide doses and schedules
- Track vial supply and reconstitution
- Integrate with Apple Health data
- Analyze bloodwork trends
- Log training and nutrition
- Access peptide reference library
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Stack is a self-tracking research log for adults running peptide protocols. Log every dose, see your schedule at a glance, and understand how your protocol lines up with what your body is actually doing. PROTOCOLS, DONE PROPERLY • Log doses in two taps, with schedules, titration steps, and cycle timelines • Curated Protocol Sheets — ready-made stacks with timelines, cautions, and one-tap clone • Active Supply tracking — see exactly how many mg remain in your vial and when to reconstitute • Reconstitution calculator and vial stability tracking WHERE YOUR PROTOCOL MEETS YOUR DATA • Apple Health integration: activity rings, workouts, heart rate zones, sleep, HRV • Cycle signals — see how recovery metrics trend across your protocol phases • Bloodwork: photograph a lab report and Stack structures every biomarker, with reference ranges and multi-report trend lines THE WHOLE PICTURE • Training log with strength scoring and Apple Watch auto-import • Nutrition tracking with AI meal-photo macro estimates and peptide-aware suggestions • A community feed to share results and templates with people running similar protocols • Full data export — your log is yours, in CSV or JSON A 44-peptide reference library provides plain-English educational summaries of published research, with cautions and interactions. IMPORTANT Stack is a tracking and educational tool for adults 18+. It does not provide medical advice, diagnosis, or treatment, and does not sell or source any compound. Anything you choose to track, you obtain and use at your own risk — always consult a licensed physician before starting, changing, or stopping any protocol.
PepCheck AI
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PepCheck AI is the science-grade tracker for peptides, GLP-1s and recovery compounds — built for people who take their protocols seriously. Log every dose, schedule reminders, photograph your progress, and let AI surface what's actually working. No spreadsheets. No guesswork. One private place. WHAT YOU CAN TRACK • Peptides: BPC-157, TB-500, Ipamorelin, CJC-1295, Tesamorelin, MOTS-c, Epitalon, GHK-Cu, and 60+ more • GLP-1s: Semaglutide, Tirzepatide, Liraglutide, Retatrutide — with weekly dose schedules • Recovery and longevity compounds: NAD+, glutathione, taurine, methylene blue • Workouts, meals, body composition, sleep, weight, water • Progress photos with side-by-side comparisons • Custom protocols and cycles POWERED BY AI • Ask anything about your compounds and get real, sourced answers • Body scans analyse muscle mass, body fat and symmetry from a photo • Meal scans turn a photo of your plate into a full macro breakdown • Weekly AI insights highlight what's moving the needle in your protocol • Personalised recommendations based on YOUR data — not generic templates APPLE HEALTH SYNC PepCheck reads your weight, body composition and activity from Apple Health to give you a fuller picture. Anything you log in PepCheck can also write back, so your health data stays in one place. DESIGNED FOR PRIVACY • Your logs, photos and health data are encrypted in transit and stored on EU-hosted servers • Sign in with Apple — no email needed • We never sell or share your data with advertisers • Delete your account and everything is gone within 30 days PEPCHECK PRO Unlock the full app with a 7-day free trial. • Unlimited peptide and compound logs • Unlimited AI insights, body scans and meal scans • Full progress photo timeline with comparisons • Apple Health sync • Priority support Monthly or annual subscription. Cancel anytime in iOS Settings. WHO IT'S FOR • Athletes optimising recovery • People on GLP-1 therapy who want a real dashboard • Biohackers, longevity-focused users, and serious self-experimenters • Anyone tired of using spreadsheets or notes apps to track a protocol IMPORTANT PepCheck AI is a tracking and information tool. It does not provide medical advice, diagnosis or treatment. Peptides, GLP-1 agonists and recovery compounds are subject to medical and legal restrictions that vary by country. Always consult a qualified healthcare professional before starting, stopping or changing any compound or program. You must be 18 or older to use PepCheck AI. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage in Settings > Apple ID > Subscriptions. Privacy Policy: https://pepcheckai.com/privacy Terms of Service: https://pepcheckai.com/terms Support: https://pepcheckai.com/support ——— Terms of Use (EULA): https://pepcheckai.com/terms Privacy Policy: https://pepcheckai.com/privacy Medical disclaimer: PepCheck AI is a tracking and informational tool only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult a qualified doctor or healthcare professional before starting, changing, or stopping any medication, peptide, or protocol, and before making any medical decision. Never disregard professional medical advice because of something you read in this app. Subscription: PepCheck AI Pro is an auto-renewable subscription (monthly or yearly). Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple Account → Subscriptions.
Screenshots
Verdict
The clearest difference is in-app purchases: Peptide Tracker at none against PepCheck AI's 2. Peptide Tracker also leads on iOS requirement (15.1 vs 17.0). 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. PepCheck AI sells 2 in-app purchases, starting at $9.99 per month. Peptide Tracker asks for nothing beyond the download.
Peptide Tracker ships an update every 10 days, PepCheck AI every 2 weeks. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.
| Parameter | Peptide Tracker | PepCheck AI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 10 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 42 MB | 49 MB |
| Age rating | 17+ | 17+ |
| Developer | Christian Pa'u | Bram Schoenmakers |
In-app purchases
Peptide Tracker
No in-app purchases
PepCheck AI
- PepCheck Pro Monthly7 Days trial$9.991 Month
- PepCheck AI Pro Yearly7 Days trial$59.991 Year
Questions
Is Peptide Tracker free?
Is PepCheck AI free?
Do Peptide Tracker or PepCheck AI have ads?
Which is updated more often, Peptide Tracker or PepCheck AI?
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