this application can be used to rename all the images and clips files taken by the camera. read carefully all description! renamed and moved files process cannot be rolled back! use this software with caution! the application do not store the old names because will cause conflicts: the default camera application use a counter which is reset each time when files are removed/renamed. as a workaround can be selected the option "append original name". if you have issues, try to reinstall the application. i developed this application for an oldest phone, for kitkat and lollipop i use android emulator so i can not test the application on real devices due to costs. kitkat advice application can rename files stored on internal memory only! the application do not have access on sd card