I'm skeptical that the online mobile apps are a good use of resources, with their very meager usage, especially relative to the several engineers tasked to support them, their questionable accessibility aspects, declining app store ratings, and other issues involving content substitution which have recently come up on this list, not to mention breaking the cross-platform nature of the web. I note that it's currently impossible to find online mobile app usage statistics on the analytics we pages, dashboard or reportcard, where they last measured 0.0006% of pageviews in 2015:
https://stats.wikimedia.org/wikimedia/squids/SquidReportUserAgents.htm
However, I wholeheartedly support this new offline app project, and hope that it will be the primary focus of the Foundation's app-not-web efforts going forward:
https://www.youtube.com/watch?v=iESP20HGPiE
https://www.mediawiki.org/wiki/Wikimedia_Apps/Offline_support
https://www.mediawiki.org/wiki/Wikimedia_Apps/Offline_support/V1_User_resear...
Huge thanks to whomever directed this pivot!