Commenting via the Item Detail (Permalink) Page
You can click on an item card (the title ie: the hyperlink, not just the card itself) from the Dashboard, Organizer, or Timelines view.
Scroll down to the bottom, enter your comment, click the green "Comment" button.
Commenting via Email
When you receive an email alert for a new comment in Sprint.ly, simply click reply, enter your comment and click send. We will import your email as a new comment and alert that item's team via email.