I have the feeling doing Dropbox right is a lot more difficult than doing Slack right. I still use Dropbox because somehow Drive and iCloud still don't work qui

I have the feeling doing Dropbox right is a lot more difficult than doing Slack right. I still use Dropbox because somehow Drive and iCloud still don't work quite as nicely as Dropbox does. But I might be wrong; I've never built chat or file-sync apps.