[anticonformist]

This is the main issue I have with app security. It would be great if one could deny network access to apps. I would be much more willing to install many apps if I knew they would keep the data local and not be able to send my data to some insecure cloud service for sale to the highest bidder behind my back.

It would be cool if app stores showed which apps require network access and which don't.

[panpanna]

Googles decision to give all apps full network access to "improve user experience" was the worst thing that happened to security and privacy.

[tga]

On Android you can do exactly that with an app like NoRoot firewall:

https://play.google.com/store/apps/details?id=app.greyshirts...

For example it helped me find a trustworthy e-mail client (K-mail) by only allowing network access to my email server.

[anticonformist]

That is cool but now you're relying on some random third-party app developer for your security/privacy. Even if they're good people, there's nothing to stop them from selling it to some jerk that will enable their own apps to bypass it and/or enable other shady developers to bypass it for money.

This kind of software can also be difficult to get right. There may be ways to easily bypass it.

If Google did this, I'd seriously consider going back to Android.

[entha_saava]

There appear to be at least one open source thing that does the same: netguard