Hey there,
Hope you are doing fine. I can screenshot and make a video for your app according to your requirements.
I am a professional graphic designer and video maker with more than 8 years of experience. My expertise includes Adobe Photoshop, Adobe Illustration, Coral Draw, 3D Max and 4D cinema.
I can do this job perfectly for you but I need more details about it.
Let's discuss it over chat in more detail.
Waiting for your response.