#LPT on your iPhone or iPad, you can and should install #lockdown. It's a kind of firewall that blocks traffic to Facebook (SDK), Google ad analytics and a lot more of those nasty trackers that are out to kill your privacy. It's #OpenSource, ofcourse. https://apps.apple.com/us/app/lockdown-apps/id1469783711
It is completely on-device only for the blocking part, so no data will leak to a 3rd party. It is #GPLv3 licensed and you can inspect the source code at https://github.com/confirmedcode/lockdown-ios
The IMHO BIG advantage of their approach is that it reliably also blocks tracker traffic coming from installed apps, not only web pages.
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