I can see the skill created on web but not on app. I sign in via developer account email@example.com. It shows me the skills. When I login via Alexa App(Android) , your skills section is empty.
thanks for posting on our forums.
The Alexa app will show your development skill under the "DEV" section.
Please also check that your Android language matches at least one locale of your skill.
Should that not fix the issue, please share your skill-ID.