PepX vs KalePep
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
PepX
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Keep every peptide and compound protocol organized in one private place β built for people who want a real system of record for their own tracking, not a generic pill reminder. PepX is a personal tracking journal that lives entirely on your device. Build your protocols, log each dose, run the reconstitution math, and watch your progress over time. No account. No login. No cloud. Just your data, on your phone. WHY PEPX β’ Purpose-built for peptides and compounds β not a one-size-fits-all habit tracker β’ Everything in one place: protocols, doses, inventory, bloodwork, body metrics, and photos β’ Private by design: your records stay on your device, protected by Face ID / Touch ID β’ Works fully offline β nothing to sign up for TRACK EVERY DOSE β’ Build multi-compound protocols with schedules, titration steps, and on/off cycling β’ Log doses fast β mark taken, skipped, late, or missed, and edit anytime β’ Discreet reminders that never reveal what you're tracking unless you choose to β’ Injection-site rotation with an interactive body map and next-site rotation reminders based on your own log DO THE MATH, NOT THE GUESSWORK β’ A general reconstitution & concentration calculator β does the math on the values you enter (no dose recommendations, not medical advice) β’ Convert between concentration, volume, and syringe units β’ Save and reuse your own calculations β’ Visualize estimated compound levels over time from published half-lives β’ A built-in reference list of compounds for your own record-keeping β for general information only, not medical advice β plus add your own entries SEE YOUR PROGRESS β’ Weight, body composition, vitals, sleep, hydration, and nutrition β’ Daily check-ins for mood, energy, sleep quality, and how you feel β’ Progress photos with side-by-side comparison and charts β’ Bloodwork and lab tracking with reference ranges over time NATIVE TO YOUR iPHONE β’ Home Screen and Lock Screen widgets for your next dose β’ Apple Watch companion to view and log doses from your wrist β’ Control Center, Action Button, and Siri shortcuts to log in a tap β’ Optional Apple Health sync across weight, body comp, vitals, activity, nutrition, hydration, sleep, and mindful minutes YOURS TO KEEP β OR DELETE β’ Export a clean PDF or CSV to share with your healthcare provider β’ Permanently erase all of your data, anytime, with one action β’ Available in English, PortuguΓͺs, and EspaΓ±ol PepX is a personal tracking and logging journal. It does not provide medical advice, diagnosis, or treatment, and it does not sell, supply, or recommend any substance. Always consult a qualified healthcare professional before starting, changing, or stopping anything. Download PepX and log your first dose today.
KalePep
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KalePep is the most complete peptide knowledge base available β with 164 compounds, more than any other app on the market. Built for biohackers, athletes, and longevity enthusiasts who demand accurate, detailed, and actionable information. PEPTIDE LIBRARY β 164 COMPOUNDS The largest peptide database on the App Store. Every compound includes evidence level (Solid, Moderate, or Emerging), reference dose, therapeutic range, dosing frequency, pharmacokinetics, drug interactions, special populations, stability, storage guidelines, and a full scientific profile. Search by name, filter by category, or browse all 164 compounds. PEPTIDE COMPARATOR Compare up to 3 peptides side by side in a detailed comparison table covering category, objective, description, reference dose, unit, therapeutic range, frequency, pharmacokinetics, and more. Make informed decisions about which compounds fit your goals. PROTOCOL BUILDER Create fully customized peptide protocols with multiple compounds, individual dosing schedules, vial supply tracking, and real-time adherence monitoring. Get AI-powered Smart Suggestions that recommend compounds based on your therapeutic goals β from muscle mass and recovery to longevity, cognitive focus, weight loss, and more. RECONSTITUTION PLANNER Never miscalculate a dose again. Enter your vial content, desired dose per injection, and BAC water volume β KalePep instantly calculates concentration, mg per unit, units to draw, and total doses per vial. Visualizes the exact fill level on an interactive syringe diagram with 1mL and 0.5mL options. INJECTION GUIDE Master subcutaneous and intramuscular injection techniques with clear visual site guides covering abdomen, thigh, gluteal, pectoral, and more. Includes rotation schedules and step-by-step preparation instructions for safe and correct administration. PEPTIDE ENCYCLOPEDIA (PEDIA) 92 terms covering pharmacology, dosing concepts, reconstitution, storage, and application. From half-life and bioavailability to BAC water and peptide bonds β the most complete reference glossary for peptide users. PEPTIDE COMBOS 25 curated compound combinations with synergy notes, use cases, and dosing considerations. Discover which peptides work well together and why. JOURNAL Track daily doses, symptoms, weight, mood, and observations. Log how you feel with each compound, monitor your progress over time, and build a complete record of your peptide experience. FREE DURING BETA All 164 compounds and all features are fully accessible at no cost during beta. A Pro version is coming soon. EDUCATIONAL USE ONLY KalePep is strictly for educational purposes. All content is informational only and does not constitute medical advice. Always consult a qualified healthcare professional before using any compound.
Screenshots
Verdict
PepX and KalePep are too close to call on the numbers: across 5 compared parameters β price, ads, in-app purchases and device support among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PepX | KalePep |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 16.0 β better | 16.6 |
| Further details β not scored | ||
| Size | 130 MB | 25 MB |
| Age rating | 4+ | 12+ |
| Developer | Vinicius Ramos Pinto | Camargo Professional Services Corp |
In-app purchases
PepX
No in-app purchases
KalePep
No in-app purchases









