Put your exercises in the order you actually train. Drag to reorder and hide the ones you skip.
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.
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 for $7.99 — no subscription, no recurring charges. Unlock unlimited exercises, 4-week chart history, detailed statistics, and Siri Shortcuts.
Ratings & Reviews
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You can now reorder your exercises. Hold any card to open the manage view, tap Reorder, and drag them into the order you want. Hidden exercises move to the bottom.
Custom exercises now show their name on the card, so they're easier to tell apart.
Also fixed a bug where the countdown voice could start late on your first workout after opening the app, along with some smaller stability fixes.
Version 4.2
The developer, Peter Ong, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
