Plank Challenge vs K

Get a stronger core in just 30 days — no gym, no equipment, no excuses. The 30 Days Planking Challenge guides you from your very first 20-second hold all the way to a 10-minute plank with a progressive, day-by-day program you can do anywhere. Hands-free voice coaching counts you in, calls the halfway mark, and pushes you through the final seconds — so you never have to look at your phone mid-plank. Just press start and hold. WHY YOU'LL STICK WITH IT • Streak Shields automatically cover one missed day per week, so a single skipped session never breaks your momentum. • A clear 30-day calendar shows every workout at a glance. • Personal bests track how far you've come. FOUR DIFFICULTY TIERS • Beginner: 20 seconds → 2 minutes • Intermediate: build real endurance • Advanced: longer, tougher holds • Elite: 4 minutes → 10 minutes BUILT FOR YOUR WHOLE DAY • Full Apple Watch app — train with your wrist, leave your phone behind. • Home-screen widget keeps your streak front and center. • HealthKit sync logs every session as core training. SIMPLE, FAIR PRICING • The Beginner tier is completely free. • One-time Pro unlock adds the Intermediate, Advanced and Elite tiers — pay once, own it forever. No subscriptions, ever. Whether you're rebuilding strength, fixing your posture, or just want visible abs, two minutes a day is all it takes. Start the challenge today and feel the difference by day 30.

"Built for people who hate working out." Just get into position, and your camera does the counting. No more losing focus trying to keep track of your reps, and absolutely no screen-tapping required. Just push up! Pick a coach and watch your workout vibe completely transform. Want to get roasted while you sweat? Choose the 'School Bully'. Prefer some familiar nagging? Go with 'Mom'. Need someone totally blunt and logical? Pick the 'Unemotional Friend'. It’s the exact same workout, but it hits different every single time. [Key Features] - Smart auto-counting via your front camera - 1-minute fitness test to unlock your customized plan - 8 unique and hilarious coaches - Auto-generated shareable workout cards - Habit tracking with fun calendar stamps