6-7 Challenge

How many reps can YOU do? Move your arms as fast as possible, beat your friends, and climb the leaderboard. Record your run and share the moment!

Take on the 6-7 Challenge!

Hold up your phone, hit start, and move your arms up and down as fast as you can. One arm up, the other down, then switch — every alternation counts as one rep. The catch? You only have a few seconds to break your record.

Powered by smart body tracking, the app counts every move for you in real time. No buttons, no cheating — just pure speed and rhythm.

HOW IT WORKS

• Pick a time: 5, 10, 15, 20 or 30 seconds
• Stand in front of your phone so your upper body is visible
• Tap Start and follow the 3-2-1 countdown
• Pump your arms as fast as you can — one up, one down, then switch
• Beat your record. Beat your friends. Become the champion.

KEY FEATURES

• Real-time body tracking using on-device AI — works completely offline
• Five challenge durations to suit any mood: quick 5-second sprints or 30-second endurance rounds
• Personal leaderboard for each time setting — your top 10 results, saved on your device
• Optional video recording with on-screen timer and rep counter baked into the video
• Audio recording so you can capture every reaction
• Switch between front and back camera at any time
• Satisfying haptics and sounds on every rep
• Modern liquid-glass design built for the latest iPhone

PERFECT FOR

• Friends and family competitions at parties, on the couch, anywhere
• Quick fitness breaks during the day
• TikTok-ready clips you can share straight from Photos
• School breaks, sleepovers, road trips
• Anyone who loves a fast, friendly challenge

PRIVACY FIRST Everything happens on your device. Body tracking runs on-device using Apple's Vision framework. Your videos and scores never leave your phone unless you choose to share them.

NO INTERNET. NO ACCOUNTS. NO LIMITS.

Download 6-7 Challenge and find out — how many reps can YOU do?