Wikipedia’s 20th Birthday Website
wikimediafoundation.org
wikimediafoundation.org
I remember the early jailbreak of iPhone OS for the iPhone 3 had an app that could compress Wikipedia into 1GB of data total and still allow pages to be constructed (without images) for offline viewing. Doubt that could happen today.
That's also true with small donations. Don't forget to support them.
https://wikimediafoundation.org/support/
There are many ways, even cryptocurrency: https://donate.wikimedia.org/wiki/Ways_to_Give