Creator here. I've posted about Safari Blocker before, but reposting for people who want alternatives to paid apps/ones that whitelist ads by default. If my app shows ads, its inadvertent and I'll fix it in future updates. Happy to answer any questions.

Tons of apps to block ads come out this month on HN, but few of them are available on my country, China. I wonder if some can open source their code so that I can compile and install it on my iPhone by myself.