Features

One phone is all the gear you need

No counter, no wristband, no rope sensor. Open the app, stand the phone up, jump.

01 / 05
Core check-in

Stand the phone up and jump

Place the iPhone 1.5–2.5m away. Step into the frame and start jumping. The AI counts. Works in regular indoor light, with everyday clothes — counts stay steady.

  • Each jump counted as it happens — no need to hold a counter
  • 30 / 60 / 90 / 120-second timed runs, or free-form
  • Jump as long as you like with adjustable durations
  • Camera frames are wiped right after counting — never archived, never uploaded
Lobby check-in screen illustration
02 / 05
Training center illustration
6 training modes

Don't know how to train? The app does.

Six built-in training rhythms, beginner to advanced, each set to a beat-based BGM. Just follow the rhythm — no stopwatch, no counting rounds.

  • Sprint: 30 seconds, all-out, chase your max count
  • Tabata: 20s on + 10s off × 8 rounds — the classic hard protocol
  • HIIT: 30s on + 15s off × 6 rounds — a cardio storm
  • Pyramid: 30→60→90→60→30 seconds, climb up then down
  • Stair: 1 / 2 / 3-minute levels, push the ceiling
  • Endurance: hold a pace for the long haul

Want to design your own routine? Pro lets you set rounds, durations, and rest periods however you like.

03 / 05
47 badges

Turn every milestone into a reward worth seeing

Jump more, jump longer, finish a new mode — badges unlock automatically. Each one comes with its own little celebration animation that makes the moment land.

  • Persistence (7-day, 30-day, 100-day streaks…)
  • Performance (first 50-streak, hit a cadence target, no breaks…)
  • Training (one badge ladder for each of the six modes)
  • Milestones (10K, 50K, 100K total jumps…)
  • Special / Challenge (first invite sent, first PK won…)

47 badges in total. The collection itself becomes a reason to come back.

Achievement wall illustration
04 / 05
Score card illustration
Highlight video · score card

The video is ready before they catch their breath

The session is recorded automatically with score, streak, cadence, and training mode baked into the frame. Tap save and it's in your photo library — drop it in any chat without editing.

  • Brand watermark on the video — your kid's footage stays theirs
  • Plus a 1080×1080 score card, perfect for a single-image post
  • 4 seasonal score-card themes (New Year, Mid-Autumn, Children's Day…) waiting to unlock (Pro)
  • Both video and card are rendered on-device — nothing is uploaded
05 / 05
Friend challenge

Drop a code in any chat — they'll come jump too

After your run you get a 6-character invite code, a QR, and a nice composite image. Send it. They scan or type the code, jump too, and both scores land on a single VS card.

  • Timed PK: 15 / 30 / 60 seconds — most jumps wins
  • No friends yet? AI Sparring will warm you up — sometimes it lets you win
  • Codes expire after 48 hours so old codes don't get re-used by mistake
  • No global leaderboard — only invite holders see the result
  • No videos or photos uploaded — just two numbers
Challenge result illustration
Family-friendly

One phone, the whole family

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Siblings on one phone? Sorted.

Each kid gets their own profile — separate records, achievements, and reminders. 2 profiles in the free version, up to 5 in Pro.

🌐

Switch language anytime

Each profile picks its own language — Chinese or English — independent of the system setting. Handy for bilingual learning at home.

☁️

Records follow you across devices (Pro)

Sign in to the same iCloud account and your records, achievements, and profiles sync between iPhone and iPad. New device, no setup.

Subscription & one-time purchase

Free version is fully usable · Pro unlocks deeper play

All payments are handled by Apple. All three products support Apple Family Sharing — up to 5 family members.

Monthly Pro

¥8/ month
  • 3-day free trial
  • All Pro features
  • iCloud cross-device sync
  • 4 holiday score-card templates
  • 5 user profiles

Lifetime Pro

¥98 once
  • Pay once, use forever
  • Includes new features added within 12 months
  • Family Sharing supported
  • No renewals

Auto-renewal rules: see Auto-Renewing Subscription Terms. Full payment terms in Terms of Service.

Free to download, ready to jump

iPhone with iOS 15 or later

Download App