mobile application interface

Question

mobile application interface of this app is completely different from website
where can i find the challenges and all my saved codes using SoloLearn website

Answer 1

There are many technology for mobile app development
Common one are ReactNative (by Facebook) and Flutter (by Google), both for cross-platform mobile app with one code base.
https://www.sololearn.com/post/277460/?ref=app
ReactNative
https://youtu.be/qSRrxpdMpVc
Flutter
https://youtu.be/I9ceqw5Ny-4
Flutter
https://youtu.be/x0uinJvhNxI

Answer 2

Depends on what language you what to write your mobile app in but most languages uses XML for their interface instead of HTML