跟练打卡 - Watch a routine and record your practice on one iPhone

chool gymnastics and dance assignments are hard to practice when the demo and camera live in different apps. 跟练打卡 puts a video from your Photos library beside a live camera view, so students can watch and record on one iPhone. Choose a top/bottom or left/right layout, then save just the camera video (the default) or a split-screen version for comparison. Videos are processed on the device, and no account is required.

Hi Product Hunt! I made 跟练打卡 to solve a small but frustrating problem: a teacher sends a gymnastics or dance video, then asks students to follow along and record their own attempt. Doing both on one phone means constantly switching between the video and the camera. The app shows the demonstration and live camera together. You can record just your own video for submission, or save a split-screen version to compare the movements. There’s no account, and video processing happens on the iPhone. The current interface is in Simplified Chinese. The app is supported by ads, but none appear while recording or creating a video. I’d love feedback from parents and teachers: for this kind of assignment, would you rather save the student’s recording or the split-screen comparison by default?

跟练打卡 - Watch a routine and record your practice on one iPhone

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