来易首 app for iPhone and iPad 4.0 ( 5520 ratings ) Music Developer: Long Chan Free Current version: 1.0.2, last update: 7 years ago First release : 11 Dec 2016 App size: 13.04 Mb 来易首一款帮助用户提升睡眠质量的APP,通过播放柔缓亲和的音乐,加深用户深度睡眠时长,让你每天醒来都精神百倍!