Twitter Developer Apps Think of a Twitter app as a gateway. It provides a set of authentication keys and permission settings needed for making requests to most Twitter APIs. While the majority of Twitter developer products require an API key, not all do. Please refer to the documentation related to the product that you are using to see if you need a Twitter App.
Unable to create APP so that I can learn how to integrate my application with twitter [Twitter Developer Apps] (2)
While creating a twitter login app im getting "Query parameters are not allowed" [Twitter Developer Apps] (1)
The review of the application remains as Application under review for more than 3 month [Twitter Developer Apps] (3)