except that's a paid solution for something that you can easily achieve for free

I have no issues paying for it given how much value I get out of it especially having no ads on their iOS app.

all you have to do is violate the content creators consent and you too can distribute information freely

Any form that is chelated is usually recommended but it also depends on desired outcomes, for example threonate form of magnesium supplements is able to cross the blood brain barrier. I personally use magnesium glycinate at 200mg almost daily.