Share choices across Django apps
We usually have quite a few project-specific apps per project here, and to try and keep dependencies reasonably clean we usually have two more apps: 

"core" in which we put things shared by other apps (any app can depend on "core", "core" doesn't depend on any app),
and "main" in which tie things together ("main" can depend on any app, no app is allowed to depend on "main").

In your case, these shared choices would belong to core.models.
In my models I'm using the choices option in some of my fields. But I'm using the same choices in multiple apps in my Django project.
Where should I place my choices and how can I load these choices in all my apps?