Hi, Client.
I have read your post to create the android screen using REST service.
If you want android screen and also comfortable to web service, I think REST service is good.
If you send me the REST api , I will integrate it to the front - end.
As you can see on my profile, I have been working as a full stack developer of over 7 years and is specialized in WordPress, PHP, JS frameworks and libraries and so on.
I received good reputations from clients with their successful jobs.
So once you hire me, I can start working immediately and can finish as you want.
Please ping me asap when you need me.
Thanks.