Hold Strong vs Delta

Build unbreakable strength with dead hangs, planks, and wall sits. Hold Strong combines precision timing with smart tracking and Apple Watch integration — zero equipment needed. "Isometric exercise training is the most effective mode for reducing both systolic and diastolic blood pressure." — British Journal of Sports Medicine, 2023 WHY ISOMETRIC TRAINING Static holds are among the most effective and underrated training methods in exercise science. They activate up to 95% of muscle fibres, reduce systolic blood pressure by an average of 8.2 mmHg, and build functional strength with zero joint impact. No gym, no weights, no special clothing. Five minutes a day is all it takes. 30-DAY CHALLENGE Pick any exercise, set your current best and a 30-day goal, and Hold Strong builds a progressive daily plan that ramps up gradually. Track your streak, hit each day's target, and earn your completion badge. The first 7 days are free — unlock the full 30 days with Premium. PRECISION TIMER A tension-arc progress ring at 60fps with tenth-of-a-second precision. Hit your target and the ring turns gold — Overtime Mode keeps you pushing beyond your goal. PROGRESS TRACKING Personal records logged automatically. Weekly charts reveal your strength gains over time. Personal bests are celebrated when you hit them. APPLE WATCH A full-featured companion app. Track holds from your wrist with haptic feedback and real-time coaching — no phone required mid-set. VOICE CONTROL Completely hands-free. Say "start", "stop", or "next exercise". Over 200 motivational messages tailored to each exercise keep you going through tough holds. MOTION DETECTION Keep your phone in your pocket. Hold Strong uses the accelerometer to detect the moment you drop from the bar, stand from a wall sit, or break your plank — and stops the timer automatically. FREE EXERCISES Dead Hang, Plank, and Wall Sit — the three most effective isometric exercises, free forever. PREMIUM EXERCISES Unlock unlimited custom exercises with Premium. SIRI SHORTCUTS & NFC AUTOMATION Add Hold Strong to the Shortcuts app and say "Hey Siri, start my plank." Automate with NFC tags — tap your mat to launch instantly. APPLE HEALTH Every workout syncs to Apple Health automatically. SIMPLE PRICING Free to use. Upgrade once — no subscription, no recurring charges. Unlock unlimited exercises, 30-day challenges, 4-week chart history, detailed statistics, and Siri Shortcuts and support development

You focus on lifting. Delta handles everything else. Delta turns the way you already think into structured workouts, instantly. Just speak or type your sets naturally, and Delta organizes everything for you in real time. No forms. No friction. No wasted time between sets. Log workouts your way Skip manual entry completely. Say something like: “Chest press 150 for 12, 2 sets… then 160 for 10” Delta understands and builds your workout automatically. From raw notes to clean structure Your thoughts become perfectly organized sets, reps, and weights — instantly. No corrections. No formatting. It just works. Train with real progression Delta doesn’t just track workouts — it helps you improve them. • See strength increases over time • Track progressive overload across every lift • Understand what’s actually making you stronger Train with the same clarity and intent as elite athletes. Know your intensity Every set is analyzed automatically. • Effort tracking per set • Clear intensity feedback • Smarter decisions mid-workout Push when it matters. Recover when needed. Understand your body Go beyond simple workout logs. • Muscle-level breakdown • Identify what’s overworked or undertrained • Build a more balanced program Stay consistent without thinking Delta keeps you locked in: • Built-in streaks • Smart reminders • Effortless logging Less friction → more consistency → better results. SUBSCRIPTION Delta requires an active subscription to use. A 2-week free trial is available for new subscribers. After the trial, your subscription auto-renews at the listed price unless cancelled at least 24 hours before the renewal date. Manage or cancel in your Apple ID account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.deltalog.fit/privacy