Convert Webpresence (Wordpress/FBpage/etc) to Android App - Please Recommend

[codenamerayven]

Hi.
I am seeking recommendations for easily creating an Android app which uses an existing self-hosted Wordpress site or Facebook page as a "backend"; other platform suggestions welcomed.
The most important functions will be:
- user ability to create subscriber account (wp), or follow/like (fb).
- user ability to create a post.
- user ability to comment on a post.
- user ability to like and/or upvote a user comment.

i have tried appypie, appmaker, and ibuildapp so far. but none have ability to like or upvote submitted comments, that I can see.

thanks!