Whenever some app or service claims to respect your #privacy, check for two things:
1. Is it open-source on both client and server (if applicable) ?2. Is the service itself decentralized in some way (federated, allows self-hosting etc.) ?
Now evaluate everything you use - iPhones, WhatsApp, Telegram, Signal, Gmail etc. using this checklist.
Try to find and use software/services which satisfy both of the above conditions.
@njoseph Wrt. to websites, you can also see (with extensions such as Privacy Badger or uMatrix) how much 3rd party JS and cookies the website uses. Those that use a lot clearly don't care about your privacy.
Welcome to your niu world ! We are a cute and loving international community Ｏ(≧▽≦)Ｏ !