Sharing clips to Twitter

The only thing on X1 that will use your Twitter account would be sharing game clips. Once you create a clip hit the share button. From there choose Twitter and it will ask you to authenticate your Twitter account. Then you can share to Twitter.

Im "sharing" my clips on twitter, IT takes a day for the newer clips that I make to HAVE the ability to do this but they all eventually allow you to share on twitter, an there is no app for this its just an option on clips in the DVR.

There are few workarounds.

1. In your twitter settings, allow twitter to post to Facebook on your behalf and then from your console share your photos or clips on twitter. They'll automatically be posted to Facebook.

2. Share your clips and photos on OneDrive, and then go to onedrive.com and find your clips/photo, get the share URL and share that on Facebook.

3. Or for clips go to a site such as https://xboxclips.com/ and on the top right search for your gamer tag. It will show you all your videos. Share from there to Facebook.

You share clips on Twitter the exact same way you share them to your activity feed, through a message, or to your showcase. Twitter's a new option right alongside those. Simply press the menu button while a clip is highlighted or playing and go to share;
a sub-menu will then pop-up with those options, Twitter included. If you have not used Twitter on the console before, you may be prompted to sign into your Twitter account or to go to the website via the IE app in order to sign up if you are new to Twitter.

You just find a game clip and press A on share, then Twitter should be an option. That's the only way I know of. There is no actual Twitter app.