PepStack vs GymLog

PepStack is a reconstitution and dosing-math calculator and protocol scheduler for peptide researchers. CALCULATE WITH CONFIDENCE • Exact BAC-water volume, concentration, syringe units, and doses-per-vial • Supports U-100 / U-50 / U-40 / U-30 insulin syringes • Step-by-step reconstitution guide PLAN YOUR PROTOCOL • Build a weekly schedule and sync dose reminders • Log doses, track streaks, rotate injection sites • Reference library of common research peptides STAY ORGANIZED • Vial inventory with expiry and low-stock alerts • Optional Apple Health sync for weight & body-fat trends • Wellness journal and progress insights PepStack is an educational calculator. It is not medical advice and does not sell or supply any substance. Always consult a qualified professional. PepStack Pro is an auto-renewable subscription (monthly or annual). Payment is charged to your Apple ID; it auto-renews unless canceled at least 24 hours before the period ends. Manage or cancel in Settings. Pro unlocks unlimited protocols, dose logging, AI insights, and PDF export. Terms of Use (EULA): https://pepstack.co/terms Privacy Policy: https://pepstack.co/privacy

GymLog is a personal training log that helps you stay consistent. Create or follow a structured training plan, check in after each session, and watch your progress build week over week. FEATURES • Structured training plans with weekly progression • Daily check-ins to keep your streak going • Progress tracking — completion rate, streaks, and weekly trends • Body metrics logging (weight, range of motion) • Training reminders so you never miss a session • Clean, distraction-free interface GymLog is built for anyone who wants a simple, reliable way to record training and stay on track. No clutter, no noise — just your plan and your progress. Start your first plan in under a minute.