youzu_bigapp

This is a app service.This plugin is designed for mobile client customized, and provide formatted data such as articles, reviews for mobile clients . When the actual use，a client application will be used with the plugin.for the convenience of owners, we provide automatically packaged service for the application, which is deployed on a dedicated server.the plugin will call the server and show application information such as address,application name in admin page .
The service we named bigstation,have some functions as follows(http://bigapp.youzu.com/): 
1. Set app property 
2. compiled app (including ios, android) 
3. version management 
4. statistics
For security, the bigstation should login use your phone.You should register it in first used.Then you will get app key and secret key. 
Fill in the keys to plugin admin page,the bigstation will verify and pass.
<h4>Version 1.0.0 (25-08-2015)</h4>
<ul>
<li>NEW: Initial Release</li>
</ul>
<h3>Arbitrary section</h3>

WP-BigApp

This plugin provide json api and the web master could create app for phone.

Ali Qureshi

JSON API Cincopa plugin extends the JSON API Plugin with a new Controller to provide Cincopa Easy Albums Listing for any user. This plugin is for WordPress/Mobile app developers who want to use Cincopa Easy Albums Plugin in conjunction with JSON API plugin as media gallery for their mobile app.
Features include:
<ul>
<li>Easy Albums Listing</li>
<li>Easy Albums Items Listing</li>
</ul>
The plugin was created to make available Cincopa Easy Albums Plugin Media listing for mobile apps via JSON API Plugin.
Hope this will help some.
For details, please check this: http://www.parorrey.com/solutions/json-api-cincopa/

JSON API Cincopa

Extends the JSON API Plugin to allow RESTful Cincopa Easy Albums Listing for any user

WP-BigApp vs JSON API Cincopa