I have a paid office365 account which was created a while back. The sharepoint version is 2010 because when the account was created this was the latest version of sharepoint.
I have an Sharepoint 2013 app which i want to deploy to the app store. I have read that i must have a developer site collection to publish the app.
Is this only available on Office365 with Sharepoint 2013?
What other options do i have other than upgrading to 2013?