Online multiplayer feature quick PLEASE!

You lost a star because of: 1. No online multiplayer feature. 2. Sometimes crashes when I am playing. 3. Cant download songs even Im online. 4. After I deleted the app and download it again on the same device, I found my scores on my account that was authorized by Twitter are gone. (iPad 2/iOS 9.2.1)
My first advice is to add the online multiplayer feature. (Which means this feature has to be able to play with ALL PC users and mobile users.) [Dont forget you guys promised to bring the multiplayer feature to the mobile version ^_^]
Though Im not giving you 5 stars, you guys done a great job, I love the music and style, but I believe you can do better, osu!! ;3

Wei4Green about osu!stream