Competing in Duolingo
I find it sad that there is no longer possible to compete in Duolingo. After I got the new update I found out that I can no longer compete with my friends, and not with a robot eighter. I wish you can do something about it. Thank you!
Yes, indeed. I liked playing the robot in the morning to fully wake up. The French forum might be the place (you can edit the forum by clicking the edit button). But this has been posted a few times already.
I never even got to try the dueling feature... it sounded awesome, so eventually I downloaded the app, but I was a couple of weeks too late.
There are ways to get older versions, though. If you know somebody who still has the old version of the app, you could get it transferred to your device.