8playKneeClap
KneeClap
Hold your phone in your palm, raise a knee, clap under it. Every rep is counted by the phone's motion sensors.
In review. Submitted to the App Store and Google Play on 6 October 2026.
What it does
- 30 or 50 reps, or 1 or 2 minutes against the clock. Open workouts and custom sets come with Premium.
- Two counting modes: Clap counts each clap under the knee, No-clap counts the arm swing.
- A spoken count in your language, over your music, and a short spoken guide before you start.
- A summary for every set: reps per minute, rhythm, best 10 seconds, personal bests and a weekly goal.
- An optional weekly leaderboard with a display name only.
How it works
- Hold the phone along your palm, screen facing your palm.
- Stand still for a moment until you hear "Go".
- Do your high knee claps. A voice counts every rep.
Details
- Platforms
- iPhone and Android
- Requires
- iOS 18 or later, or Android 10 or later. The phone needs a gyroscope.
- Languages
- English, Vietnamese, Japanese, Korean, French, German, Spanish, Brazilian Portuguese
- Price
- Free to start. Premium is an optional subscription with a 7-day free trial for new subscribers.
- Data
- Anonymous usage statistics through Google Analytics for Firebase, on by default, off in Settings. Privacy · Terms
- Help
- hello@8play.dev