Limit using internet on one app?

Hi, I've been using iPhone since the start, and currently have iPhone 12 Pro, however i have an issue at work. I am a sailor and when at sea the internet costs are really high. Is there a way to limit the internet traffic on just one app and also not the allow the software updates?

For Android there are a lot of apps for this but for iOS i cannot find it. When at sea i use ships wifi.

Thanks for your support