Silence your phone once face down it or closethe cover.How to remove the app?Setting - Security - Phone Administrators - uncheck FlipSilentAfter it, you can unsintall the app as normal.

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Flip to silent your phone

Taiwan weather, wind force, wind field, wave conditions, oceancurrents, tide display graphs, tide graphs can be displayedoffline, and historical records. Added stargazing, PM2.5 airpollution, cloud sea oblique temperature map, inversion layer,light pollution and many other functions

採用台灣地圖與顏色顯示台灣 PM2.5 的分佈狀況，比文字更清楚易懂。 可以借由定位換算所在地的 PM2.5 大略值 還有PM1.0分佈圖 另外表格型態提供空氣品質、PM10 等等政府平台監測資訊。顏色繪製是以測站為中心點，再以圓周擴散遞減繪製空污會受風向影響，測站越少的地方，誤差會越大 PM2.5 數值以政府開放平台為依據分佈圖示僅供參考，高山山區請忽略汙染遞減換算值。V1.3.3 新增歷史紀錄 (from 2017/0309)