In case it helps, here is the android client apk: https://mega.nz/file/N8EyQQII#L0DY6V9lHUux3tl6PEz3p6mDfWHlG2UjJBYd3lLDn8Y
and the android server apk (in R2D2): https://mega.nz/file/cgVwgThB#NceEj9x-erAxcd0yQONsWpGMQmsH2E1jd_LrGKBx1Vk
and here is a bonus link to decompile: http://www.javadecompilers.com/apk