It's listed in https://phabricator.wikimedia.org/diffusion/GRBD/browse/master/scap/vars.yaml;c86e94f937cc26e40dd522949b69bf2c6d771318$59 , but that doesn't seem to be enough.
https://donate.wikimedia.org/api/rest_v1/page/mobile-html/Ways_to_Give gives a json-formatted 'not found'
and https://donate.wikimedia.org/api/rest_v1/ gives 'site info fetch failed'
It would be great if we could ALSO make the content available via donate.wikiPedia.org - we've had to start using this domain for thank you pages so we can set wikiPedia.org cookies to hide banners after people donate, but mobile donors with the apps installed will see all *.wikiPedia.org links open in-app.