Sonar vs CENTRIC Rep + TUT Timer

Your body is talking. Are you listening? Sonar unifies all of your wearables, lifestyle, and biomarker data to unlock personalized insights and detection once reserved for elite athletes and biohackers. Trusted by 250,000+ users across 170+ countries, Sonar helps you cut through the noise across sleep, recovery, stress, activity, and nutrition - so you can focus on what actually matters. Sonar isn't just another health tracker. It merges the latest medical, sports and data science with AI engines that continuously surface subtle shifts and patterns across millions of data points, helping you know when to push, when to pause, and where to focus next. FEATURES: Personalized intelligence Sonar AI is a personal health agent grounded in the data across your wearables, health apps, and connected devices. Ask questions, understand changes in your scores, and get answers that reflect your actual data - not generic advice. Sonar AI also remembers personal context you give it like training goals, travel, or new routines, and factors it into how it interprets your data over time. Sync everything Fragmented data means missed signals. Connect Apple Watch, Garmin, Oura, Fitbit, Strava, Withings, MyFitnessPal, Peloton and many more. Daily scores and guidance Recovery, Strain, Sleep, Stress, Energy, and Nutrition scores help you understand your day at a glance, with practical guidance to improve. Correlations & comparisons See how any two metrics relate over time. Plot exercise against sleep, alcohol against HRV, or stress against recovery to surface the patterns driving how you feel each day. Compare up to six metrics at once, or focus the view on a single category like activity, sleep, or recovery. 24/7 vitals monitoring Track trends in HRV, resting heart rate, respiratory rate, blood oxygen, body temperature, and more, and get notified when values move outside your typical range. Training analytics All workouts in one place, with detailed summaries, heart rate zones, and training load and balance to help you build fitness without burnout. Widgets, Apple Watch & desktop app Keep Sonar close with beautiful widgets and an Apple Watch app, and explore your data on the big screen at www.sonarhealth.co Peer benchmarks See how you compare to people like you (and the broader community) across key metrics. Make it yours Choose the sections, metrics, wallpapers, and views that matter most to you, including a Favorites view for the health data you care about most. Tailored recommendations Add your medications, family history, and conditions to receive personalized checkup, vaccine, and screening recommendations based on age, sex, history, and the latest medical guidance. PUTTING PRIVACY FIRST Your health data is yours - we do not sell personal data. Our goal is to build an experience our users love, and all product and architecture decisions are built around maximizing user privacy. SUBSCRIPTION AND TERMS Sonar offers a meaningful free experience, empowering you to start transforming your health today with no strings attached. Current-day Recovery, Sleep, Strain, and Nutrition scores are free for all users. It's all part of our mission to accelerate longer, healthier, and happier lives globally. If you're looking to take your health journey to the next level, you can upgrade to Sonar Pro at any time for access to a suite of powerful features we think you'll love. Always consult with your doctor prior to making any medical decisions. Privacy Policy: https://www.sonarhealth.co/legal/privacy-policy/ Terms of Service: https://www.sonarhealth.co/legal/terms-of-service/

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.