DFEN app for iPhone and iPad 4.6 ( 2576 ratings ) Lifestyle Developer: 亚东 张 Free Current version: 1.5.3, last update: 1 year ago First release : 24 Nov 2022 App size: 179.59 Mb DFen面向新能源领域向用户提供行业资讯，用户可对内容资讯进行转发、评论、点赞。