指南针是一种判别方位的简单仪器，又称指北针。指南针的前身是中国古代四大发明之一的司南。主要组成部分是一根装在轴上可以自由转动的磁针，磁针在地磁场作用下能保持在磁子午线的切线方向上，磁针的北极指向地理的北极，利用这一性能可以辨别方向。常用于航海、大地测量、旅行及军事等方面。
| 熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
|---|---|---|---|---|---|---|
| 中國 China | Android Google Play | 5.0 App下載 | 免費 | 2014-08-27 | 2014-09-16 |
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