Clean History is an android system tool which can clean history ,protect your personal privacy , save your disk space ,make your phone's speed more faster.[what this app can clean]One Click Clean:All App CacheTemp filesLog filesClipboardObsoletd old version apkDeep Clean:Empty foldersThumbnailNot installed apk managmentDuplicated photosBlurred photosScreenshotsDownloads of system / third-party appsZip files managmentDocument files managmentFile received via bluetoothAudio files managmentVideo files(camara / created by apps) managmentLarge files managmentApp managment with batch uninstallPlugin(app without icon and doesn't show in launcher) managmentChrome HistoryYoutube search historyAccessibility app managementNotification access permission managementApps with usage access permission managementThis app with two theme(day/night) for your chooseSupport multiple languages:English, Japanese, Korean, French, German, Italian, Spanish, Indian, Chinese, Portuguese, Russian, Arabic, Bulgarian, Czech, Danish, Greek, Finnish, Hungarian, Croatian, Malay, Norwegian, Dutch, Polish, Romanian, Slovak, Swedish, Thai, Turkish, Ukrainian, Vietnamese[What is Application Cache Files]Application Cache Files are temporary files created by applications. For example, when browser visit a web page, it will save the image files as cache files. These cache files are not useful when app ends, so you need a system tool help you clean these old cache files. Often clean cache , is a good habit, it could save your disk space and make your phone speed up.[About permissions]All permissions required by this app are used for implement app function ,my apps won't do anything hurt users.In order to help you cleaning history , permission of read/write sd card files is necessary.App will not share these information with anyone and will not upload these information to server.