CENTRIC Rep + TUT Timer vs Protokl

Transform your strength training with CENTRIC, the precision rep and interval timer designed for serious lifters who demand perfect form and maximum muscle activation. Whether you're powerlifting, bodybuilding, or pursuing strength gains, CENTRIC ensures every rep counts with scientifically-backed time under tension protocols. Perfect Rep Timing, Every Time CENTRIC synchronizes every phase of your lift to optimal tempos. From the eccentric lowering phase to the concentric lifting phase, our precision timing keeps your muscles under tension for maximum growth stimulus. No more guessing – just perfectly timed reps that build serious strength. Smart Tempo Control Choose from proven preset tempos (Hypertrophy, Strength, Explosive) used by elite trainers, or create custom tempos tailored to your specific training goals. Select concentric-first timing for squats, deadlifts, and presses, or eccentric-first timing for pull-ups, rows, and curls. CENTRIC adapts to your methodology and exercise selection. Haptic & Audio Guidance Feel and hear your way to perfect form. Apple Watch haptic feedback keeps you connected to your timing without looking at screens, while crystal-clear audio cues guide each rep phase. Train with focus and intensity while maintaining precise control. Rest Timer with Personality Between sets, CENTRIC keeps things light with humorous rest alerts including the fan-favorite "Don't steal my station!" message. Customizable rest periods ensure optimal recovery while keeping your workout energy high. Seamlessly Synced Rep Phases Every stage of your rep is perfectly synchronized to your chosen tempo: - Eccentric (lowering): Build strength through controlled resistance - Hold: Maximize muscle tension at critical points - Concentric (lifting): Explosive power with perfect timing - Rest: Get ready for your next rep Key Features - Preset & custom tempo options - Apple Watch haptic feedback - Audio cues for each rep phase - Customizable rest timer alerts - Perfectly synced rep timing - Clean, distraction-free interface - Works with any exercise - FREE to start your strength journey Perfect For - Strength training & powerlifting - Bodybuilding & hypertrophy focus - Time under tension protocols - Form improvement & technique work - Progressive overload training - Serious lifters seeking precision Why Time Under Tension Matters Research shows that controlling rep tempo increases muscle activation, promotes strength gains, and reduces injury risk. CENTRIC makes implementing these proven techniques effortless, turning every workout into a precision performance. Download CENTRIC today and experience the difference that perfect timing makes. Your muscles will thank you.

Protokl is not another static workout log or generic calorie counter. It is a bi-directional physiological engine designed to mathematically optimize your body composition and strength progression. By replacing rudimentary step-functions and static algorithms with continuous mathematical curves and variance-adjusted modeling, Protokl adapts to your metabolism and recovery capacity in real-time. Protokl is your all-in-one fitness transformation companion, built on exercise science to help you reach your body composition and strength goals faster. SET YOUR GOALS Choose your path — fat loss, muscle gain, or body recomposition. Protokl builds a personalized plan based on your current stats, experience level, and preferred pace, then projects your timeline using our proprietary algorithm grounded in published physiological research. DAILY PROTOCOL Your personalized daily checklist keeps you accountable. Track sleep, meals, workouts, body composition, steps, and custom tasks — all in one place. Smart reminders keep you on schedule, and tiles auto-complete as you hit your targets. SMART WORKOUTS Recovery-based workout programming that adapts to you. Protokl tracks muscle recovery across 11 muscle groups, selects exercises based on your available equipment, and applies progressive overload automatically. Warm-up sets, supersets, drop sets, and rest timers are built in. NUTRITION TRACKING Log meals from a curated recipe database or search thousands of foods. Protokl calculates your daily calorie and protein targets based on your TDEE, goal, and pace — then tracks your progress throughout the day. BODY COMPOSITION ANALYTICS Track bodyweight, body fat percentage, and lean body mass with interactive charts. See your 2-week trend, plan forecast, confidence intervals, and goal progress. Syncs automatically with Apple Health. STRENGTH TRACKING Monitor your lifts over time with per-exercise history charts, estimated 1RM tracking, and strength progression forecasts. APPLE HEALTH INTEGRATION Seamlessly syncs with Apple Health to import steps, heart rate, sleep, VO2 max, and 60+ other health metrics. Your data stays on your device with automatic iCloud backup. SCIENCE-BACKED PROJECTIONS Our forecast engine synthesizes research on muscle protein synthesis rates, fat oxidation limits, adaptive thermogenesis, and more to project your body composition journey with 90% confidence intervals. PROTOKL PRO SUBSCRIPTION Protokl Pro unlocks the full experience including personalized workout programming, AI-powered nutrition tracking, body composition forecasting, custom workout templates, data export, and priority support. A Protokl Pro subscription is required to access these premium features. • Monthly: $12.99/month • Annual: $119.00/year ($9.92/month) • 14-day free trial included with all plans Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your Account Settings on the App Store after purchase. Any unused portion of a free trial period will be forfeited when you purchase a subscription. Privacy Policy: https://docs-nine-silk.vercel.app/privacy.html Terms of Use: https://docs-nine-silk.vercel.app/terms.html