Tension vs CENTRIC Rep + TUT Timer

Tension is a strength-training app built around one simple idea: how you move each rep matters as much as how much you lift. Control your tempo, own the eccentric, and make every set count. Build your routine on iPhone, then run the whole workout from your Apple Watch — timers, rest countdowns, and rep counting right on your wrist. TIME UNDER TENSION Set a concentric and eccentric tempo for each exercise and let Tension pace every rep. It counts your reps out loud so you can keep your eyes off the screen and your focus on the lift — through your watch speaker or Bluetooth headphones. BUILT FOR APPLE WATCH Start a workout, work through your sets, log what you completed, and start your rest timer without ever touching your phone. Your watch respects Silent Mode, so counting plays through headphones when you want it and stays quiet when you don't. TRACK YOUR PROGRESS Set rep and weight goals, log completed sets, and watch your strength build over time. Completed workouts save to Apple Health automatically. AUTOMATIC PROGRESSIVE OVERLOAD Give each exercise a rep goal and a weight increment, and Tension handles progression for you. The moment you hit your rep max, it automatically raises your target weight by your chosen increment for the next workout — so you keep getting stronger without doing the math. PRIVATE BY DESIGN Tension has no accounts and no servers. Your workouts live on your device and sync across your iPhone and Apple Watch through your own private iCloud. No analytics, no ads, no tracking — ever. FEATURES - Time-under-tension tempo timing with spoken rep counting - Automatic progressive overload — target weight steps up when you hit your rep goal - Full Apple Watch app: timers, rest countdowns, set logging - Custom workouts and exercises with rep and weight goals - Apple Health sync for completed workouts - Private iCloud sync across your devices - Optional location-aware workout suggestions Train with intention. Build strength with Tension.

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.