@LEMONS!!! Most people use the export/share feature to save a high-res image of just the card in png format to somewhere and then upload that to the Levels section. You could also use a screenshot like you did here, but please take the picture in portrait mode. Much more help can be found in this thread, particularly the fourth message about How to Share a Mekorama Level.
@LEMONS!!! Bottom right of the screen; three dots with two lines connecting them; on the same screen where you tap the card to change the author name and level title in the app. Edit: actually I can see it right there on your screenshot, but it appears as a square box with an arrow pointing up out of it.
@LEMONS!!! You lost me. I'm saying that you do have the export button, just that on iOS it looks different than on Android.
