Peptide Stack AI vs PepCycle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Peptide Stack AI
This app assists researchers and medical professionals in building personalized peptide stacks and regimens. It leverages AI to analyze over 120 peptides against scientific literature and syncs with wearables to track biometric responses in real-time. The app prioritizes user privacy by storing all data locally.
- AI-driven peptide stack recommendations
- Evidence-based ranking of peptides
- Automated dosing schedule generation
- Real-time biometric tracking via wearables
- 120+ peptide database with citations
- Contraindication filtering
- Local data storage for privacy
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Peptide Stack AI is a full stack peptide app. Built exclusively for researchers, medical professionals, and scientific institutions conducting pre-clinical and clinical research. See exactly what your peptides are doing to your HRV, sleep, and recovery in real time. Connect WHOOP, Oura, Garmin, or Apple Health and let AI show you how your stack is performing against your actual biometric data. HOW IT WORKS 1. BUILD YOUR RESEARCH PROFILE Define research goals — fat loss, muscle growth, sleep, skin repair, cognitive enhancement, immune modulation, joint repair, or cardiovascular health. 2. GET YOUR EVIDENCE-RANKED STACK Our AI cross-references 120+ peptides against 400+ peer-reviewed citations, ranks by evidence tier, filters contraindications, and returns a personalized stack. Only the best peptide per class is recommended — alternatives always accessible. 3. BUILD YOUR REGIMEN Auto-generate a personalized dosing schedule. Know exactly what day, time, and dose for each peptide. Push notifications remind you when it is time to dose. 4. TRACK YOUR BIOMETRIC RESPONSE AI insights surface automatically: "HRV up 14% since starting Ipamorelin — 12 days ago" "Deep sleep +22 min since adding Epithalon" "Recovery score improved 18% on CJC-1295 + Ipamorelin" WEARABLE COMPATIBILITY - Apple Health — HRV, sleep, VO2 Max, resting HR - WHOOP — Recovery score, strain, sleep performance - Oura Ring — Readiness, sleep stages, body temperature - Garmin — Body Battery, training status, VO2 Max PEPTIDE DATABASE — 120+ COMPOUNDS Retatrutide, Semaglutide, Tirzepatide, Liraglutide CJC-1295, Ipamorelin, Tesamorelin, Sermorelin BPC-157, TB-500, GHK-Cu, LL-37, KPV Epithalon, DSIP, Selank, Semax, Noopept Thymosin Alpha-1, Hexarelin, AOD-9604 Glutathione, PT-141, NAD+, MOTS-c, and more KEY FEATURES - 120+ peptides with full clinical reference data - 400+ peer-reviewed citations - AI stack recommendations based on research goals - Evidence tier ratings — Tier 1 through Tier 3 - Dosing protocols scaled by experience level - Automated regimen planner with dose reminders - Wearable biometric sync and AI insights - Contraindication filtering - No account required — zero data collected - Your data never leaves your device — ever - Reconstitution Calculator YOUR PRIVACY No servers. No accounts. No data collection. Every stack, biometric reading, and cycle log is stored exclusively on your device and never transmitted anywhere. Uninstalling permanently deletes everything. FOR RESEARCH USE ONLY. Peptide Stack AI does not constitute medical advice, does not facilitate the purchase of any substance, and is not intended for human use. Use is restricted to licensed researchers and medical professionals. Users must acknowledge a full legal disclaimer before accessing any content. Terms of Use: www.apple.com/legal/internet-services/itunes/dev/stdeula/ | Privacy Policy: peptidestackai.com/privacy
PepCycle
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Stay on top of your weight management journey with PepCycle-the smart GLP-1 tracking app that makes logging injections, pills, and side effects effortless. Whether you’re taking tirzepatide, semaglutide, liraglutide, or other GLP-1 agonists, PepCycle helps you maintain consistency, track your progress, and never miss a dose. Designed with simplicity in mind, PepCycle is your personal medication diary that fits right in your pocket. Here’s how it helps: • Log Injections & Pills - Quickly record your doses, injection sites, and pill intake with just a few taps. Keep a detailed history of your medication use. • Set Dosage Reminders - Never forget a dose. Customize reminders for each medication and get notified when it’s time to take your shot or pill. • Track Side Effects - Monitor how you feel after each dose. Log side effects like nausea, fatigue, or appetite changes to share with your doctor. • Visual Progress Charts - See your injection frequency, side effect patterns, and weight progress over time with clean, easy-to-read charts. • Secure & Private - Your health data is stored safely on your device. No account required-start tracking right away. • Sync Across Devices - Optionally back up and sync your data to all your Apple devices via iCloud. • Multiple Medication Support - Manage more than one GLP-1 medication? No problem. PepCycle handles multiple prescriptions effortlessly. PepCycle is built for real-world use: quick logging, intelligent reminders, and a clutter-free interface that keeps you focused on your health goals. Whether you’re just starting your GLP-1 treatment or have been on it for months, PepCycle empowers you to stay consistent and informed. Let PepCycle simplify your medication routine. Download now and take the first step toward a healthier, more organized you. Privacy Policy: https://pepcycle.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
Peptide Stack AI and PepCycle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Peptide Stack AI sells 3 in-app purchases, starting at $4.99 per 7 days and PepCycle sells 2 in-app purchases, starting at $19.90 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Peptide Stack AI | PepCycle |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 26 MB |
| Age rating | 17+ | 17+ |
| Developer | Emad Alsamadi | Laqen LLC |
In-app purchases
Peptide Stack AI
- Peptide Stack AI Pro7 Days trial$4.997 Days
- Peptide Stack AI Pro7 Days trial$9.991 Month
- Peptide Stack AI Pro7 Days trial$49.991 Year
PepCycle
- PepCycle Monthly$19.901 Month
- PepCycle Pro7 Days trial$59.901 Year



