How to run an app after installing

Hello everyone.
I’ve installed a second app through commands:
bench get-app appname url
bench install-app appname.
So the app installed successful ,but when i run the command i.e localhost:8080 always the first app launched.How to launch second app?It is possible to create two apps in one ‘site’, or i need to create another site for ‘second’ app.
Thanks in advance

What do you mean with?

@joelios I mean i’ve created an app and it works very well.Now i in the same ‘site’ i installed another(second) app from bitbucket.This second app installed successful but i don’t know how to open it in the browser.Thnx for reply

Have you module access? Has the app any doctypes? Have you got enough permissions for the module and/or doctypes?