帮助与支持

算得来（Unravel）用一步一步的引导，帮你把数学题和物理现象真正想通。

遇到问题、发现题目有错，或者想要新功能，都欢迎告诉我们：

常见问题

视频加载不出来？ 请检查网络后点「重试」。看过的视频会存在手机里，之后不联网也能看。

怎么切换中文 / English？ 打开 iPhone「设置 → 算得来 → 语言」。视频讲解可以在播放时单独切换语言。

换手机后学习记录还在吗？ 学习记录只保存在本机，不会同步到新手机。

Unravel guides you step by step to truly understand math problems and physics phenomena.

Questions, a mistake in a problem, or a feature request? Email us:

Videos won't load? Check your connection and tap “Retry”. Videos you've watched are saved on your phone and play offline.

How do I switch between Chinese and English? Open iPhone Settings → Unravel → Language. Video lessons can switch language while playing.

Will my progress move to a new phone? Progress is stored only on this device and does not sync.