I am a expert Android developer.
Maine tumhara attached document padha h. Mai ye app jaldi banadunga 10-15 din m kyuki meri classes bhi hoti h din m 2-4 ghante aur ghar k dusre kaam bhi, so u know.
Chinta ki baat nhi h, I will get it done at the earliest. Just to tell u, I will use android studio to make this, and will use firebase realtime database for the backend storage, since it updates in realtime. For user information, I will use Google analytics. Other info we can discuss in chat....