PepSeek vs Peptide Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PepSeek
This app is a comprehensive search engine for peptide research, offering detailed profiles on over 200 peptides and pre-built research stacks. It includes an AI assistant for instant answers and a reconstitution calculator for accurate dosing.
- Search 200+ peptides
- 75+ pre-built research stacks
- PepBot AI assistant
- Reconstitution calculator
- Save favorites
- Preferred supplier list
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PepSeek is the all-in-one peptide research database and protocol tracker for biohackers, longevity researchers, and athletes. Look up any research peptide, see how strong the evidence behind it actually is, and keep track of what you're running. Covers Semaglutide, Tirzepatide, Retatrutide, BPC-157, TB-500, CJC-1295, Ipamorelin, Sermorelin, Tesamorelin, Epithalon, GHK-Cu, and nearly 200 more. 200+ PEPTIDE PROFILES Every major research peptide, with mechanism of action, research status, researched dosing ranges, administration methods, and half-life. Written in plain language, not abstract-speak. EVIDENCE LEVELS Every peptide is labeled well studied, emerging, or limited data, so you can tell decades of literature from a single mouse study. Research sources link straight to PubMed. This is the part other peptide apps leave out. 75 STACK PROTOCOLS Curated combinations for healing and recovery, fat loss, muscle growth, cognition, longevity, sleep, and immune support. Each one explains what's in it and why those peptides belong together. PEPBOT AI ASSISTANT Ask anything in plain English and get an answer grounded in the research. Powered by Claude. PROTOCOL LOG Track what you're running, see what's due today, and log doses as you go. Syncs between your phone and pepseek.app. RECONSTITUTION REFERENCE A nine-section guide covering bacteriostatic water, storage and handling, syringe basics, and the mistakes people make most often. FAVORITES Save peptides and stacks to your own library for quick reference. BUILT FOR IPAD Two-pane search and a full stacks grid on the bigger screen. PRIVACY Search, peptide profiles, stacks, favorites, and the reference guide all work without an account. Only the protocol log asks you to sign in, because it syncs your data between your phone and the web. We don't sell your data, and we never will. WHAT IT COSTS PepSeek has two separate purchases. A free preview is available before you buy either one. Research, $14.99 paid once. 200+ peptide profiles, 75 stack protocols, evidence levels and PubMed citations, favorites, and free updates as new peptides are added. No subscription, no expiry. Pro, $4.99 per month or $39.99 per year. The protocol log, dose tracking, and PepBot, synced between your phone and pepseek.app. The yearly plan starts with a 3-day free trial. Pro Monthly is tracking only and does not include Research. Pro Yearly includes Research permanently — once your first year bills, the database stays yours even if you later cancel. SUBSCRIPTION DETAILS Pro Monthly is an auto-renewing subscription at $4.99 per month. Pro Yearly is an auto-renewing subscription at $39.99 per year and begins with a 3-day free trial. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours of the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. If you take the free trial, any unused portion is forfeited when you buy a subscription. Terms of Use: https://pepseek.app/terms Privacy Policy: https://pepseek.app/privacy HEALTH DISCLAIMER PepSeek is for educational and research purposes only. It is not intended to provide medical guidance. The compounds described are research chemicals. PepSeek makes no medical claims and does not give medical advice. Consult a qualified healthcare professional before using any substance. A Risen Works creation.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Peptide Tracker at none against PepSeek's 1. Peptide Tracker also leads on update cadence (every 10 days vs every 5 weeks) and ratings volume (4 vs 1). On price, rating, 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. PepSeek sells 1 one-off in-app purchase. Peptide Tracker asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for PepSeek against 5.0 for Peptide Tracker. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
PepSeek ships an update every 5 weeks, Peptide Tracker every 10 days. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.
| Parameter | PepSeek | Peptide Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 5 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 42 MB |
| Age rating | 4+ | 17+ |
| Developer | Risen Works LLC | Christian Pa'u |
Customer experience
PepSeek
Peptide Tracker
In-app purchases
PepSeek
- PepSeek Full Access$1.99
Peptide Tracker
No in-app purchases









