You can upload articles/posts to your App utilizing the Versl Wordpress Plugin.
Add a new post in Wordpress then select Sync With Versl in the Versl Menu on the post settings. If you want to post to Versl with out posting to your website, set the visibility to Private. If you want the post to be visible on both your Website and your Versl App, set the visibility to Public.
When you set a featured image, the image will be displayed as the main image in the Versl app
The Versl Plugin has the ability to display embeds on the app. For example if you want to embed a Youtube, take the embed code and paste it into the article.
Click on Sync With Versl then select the category that you want the post to sync under. Then click on publish.
A successful publish will display this header