Hello, Please I want to create a new app public so how can a develope but it can not install with another shop so how can i fix it?

Shopify Apps
1

I want to create a new app public so help me please, I need a public appto have a multiple installation because I need to test the app with a shop who has a plan basic cause my app need a shop who not protected with the code visitors

3

Can you tell me more explaination please ?