Jrcode app for iPhone and iPad 4.2 ( 8032 ratings ) Education Developer: 楠 史 Free Current version: 1.2.6, last update: 9 months ago First release : 04 Nov 2020 App size: 134.69 Mb Jrcode让它更适合低龄小朋友，尤其专注将功能设计地更符合他们的认知、个人、社会、情感发展。