You can create all kinds of apps. There are more than 30,000 WordPress plugins. You can use all the plugins to create apps.

PHOTO GALLERIES
You can use a “photo galleries” plugin. Display the “gallery creator” page in the frontend and your users will be able to upload photo galleries and view the galleries

EMAIL MARKETING
Use the free “MailPoet” plugin, and display the mailpoet settings, list editor, and newsletter builder in the frontend. Your users will be able to create and send newsletters

SELL PRODUCTS
Use the free “WooCommerce” plugin and display the products list, sale reports, and settings page in the frontend. So your users can create stores and sell products from your app

ANALYTICS AND STATS
Use the free “Monster Insights” plugin. Display the settings and reports pages in the frontend. Your users will be able to set up their Google Analytics account, view stats about web traffic from their site on your platform or their external website

FILE HOSTING
Display the WP Media library in the frontend and allow your users to upload files and view their uploads in the library.

DONATIONS
Use the free “Give” plugin, and display the donation form editor. Your users will be able to create donation forms and receive donations

EVENTS MANAGER
Use the free “The Events Calendar” plugin and display the “attendees” page in the frontend. So the event managers can control the attendees from your app.

CHARTS CREATOR
You can use the free “visualizer” plugin and display the “charts editor” in the frontend. Your users will be able to log in and create charts.

POLLS AND SURVEYS
Use the free “CBX Polls” plugin, display the polls list in the frontend, and your users will be able to log in, create polls, and share the poll link with their friends

URL SHORTENERS
Use the free “URL Shortener” plugin, and display the “short url” editor. Your users will be able to log in, shorten urls, and see their URLs in the frontend

SELL COURSES
Use the “LearnPress” plugin and display the “courses” page and editor in the frontend. So users of your app can log in, create, and edit courses.

WEBSITE CREATOR
You can display multiple pages from WP Admin, like the posts list, themes, and settings page in the frontend. Your users will be able to log in, publish blog posts, create pages with elementor, and tweak their design.