Metafact might be a bit more popular than Crystal. We know about 1 link to it since March 2021 and only 1 link to Crystal. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Crystalknows.com: 5. I don't know how to find the rest. Source: about 3 years ago
Just please ask someone with specific knowledge of these things before you embark on them. Check Wikipedia, it is very peer reviewed when it comes to science based information. Try out metafact as well. Remember just because something has someone with letters before their name (Dr) or qualifications under their belt, still check out the person, a vaguely connected qualification from 40 years ago doesn't hold a lot... Source: almost 3 years ago
Adblock Fast - A faster ad blocker for browsers and iOS 9
Fact Check by Google - Google fights fake news in search with 'fact check'
F*ckOff - Tell YouTube ads to f*ck off
Partial Press - Breaking news according to political bias 🗞
BlockBear - Block ads and protect your privacy on iOS with a bear
SureOrNot - Automatically detect whether a shared article is outdated