How to edit wordpress RSS feed to show post title only

Hi everyone can someone help me on how to edit WordPress rss feed to show only title of the post, i use android application that display notification as rss feed that’s why i want to show only a title of the post. OR another way if you guys can show me how to edit that rss feed to show both title and post description the one i add in yoast description box i will very very much appreciate.

Thank you all for you time and effort.

Your answer lies in the codex:

https://codex.wordpress.org/Customizing_Feeds

Google also gave me this https://konstantin.blog/2011/wordpress-posts-without-titles-in-rss-feeds/ – the comments of the blog is most informative.