Just launched a restricted browser for kids for iOS: https://weblock.online Now testing on my kids. The idea is that the browser is whitelist-only, so kids can open only approved websites. I receive a notification when they want to visit an unknown website and I can allow or deny it. Works great for my family, hope it will be useful for someone else.
How does it work on a more technical level? I would be interested in seeing a bit more tech detail, perhaps because I'm more technical, but also there's so much competition in this space that you need something to differentiate.
For example, is the blocklist UX side Domain based? Company based (Allow all by Google/Alphabet), category based (Search engines)?
And on the backend, is it DNS based or HTTP based? Or maybe an OS hook.