I’m using Yosemite build 10.10.4. It no worky man. It also looks like it would handle more than one account, but there’s nowhere to add a second account. That’s a moot point anyway because I composed a test tweet and added it to the Queue. Well that was the end of it. I thought I’d be allowed to set a time to post the Tweet, but you just get “Share Now” and “Share Later”. I tried “Share Now” and nothing happened.
smirking about Buffer for Twitter and Social Media Scheduling