What each one does
An end screen shows clickable elements in the last seconds of a video, such as another video, a playlist, or a subscribe button. A card is a small prompt you can show during the video that links to another video or playlist.
Both are set up in YouTube Studio when you edit a video. Check YouTube's Help Center for the current length and placement rules.
Pick one next step
Point the end screen at one video that continues the same topic, or at a playlist. Too many choices make each one less likely to be clicked.
Say it out loud, too. "If this helped, the next video covers [topic]" gives the viewer a reason to click.
Leave room at the end
Plan a few seconds at the end of the video where nothing important is covered by the end screen elements.
Use a card at the moment you mention another video, not at random. A card that matches what you are saying is easier to understand. If you want a list of which uploads to link next, the free mini-audit and the paid plans review your public titles and descriptions.
Questions
Should I use the "best for viewer" option?
It is a reasonable default if you do not have a clear next video. If you do, pick that video yourself.
Do cards and end screens work on Shorts?
Shorts work differently. Check YouTube's Help Center for what is available on Shorts today.
Will Creator Climb add end screens for me?
No. Creator Climb does not edit or post videos. You set end screens and cards in YouTube Studio.