No root firewall
This is what you're looking for:
https://play.google.com/store/apps/details?id=eu.faircode.netguard&hl=en_GB
Offers more granularity that you appear to require too
HTH
This is what you're looking for:
https://play.google.com/store/apps/details?id=eu.faircode.netguard&hl=en_GB
Offers more granularity that you appear to require too
HTH