notnn Hi there!
It's very hard to give a definitive answer to questions like that.
Apps within the same profile can find out about each other, and they can communicate with mutual consent.
Theoretically, if there is an app that does have network access and can communicate with one of these apps that don't, it could pass data out.
The likelihood of that happening with the setup you mentioned, however, sounds pretty slim.
I'd say you should be good to go.