The "being in cellular network" is done by the modem. It's a separate CPU core that doesn't run any user code. If you jailbreak the user OS, you can send AT com

The "being in cellular network" is done by the modem. It's a separate CPU core that doesn't run any user code. If you jailbreak the user OS, you can send AT commands to it, which is still harmless as far as RF interference is concerned. But I really struggle to understand how any of this relates to the distribution of apps that run in sandboxes.