Is there a way to MAKE your app be unavailable for a short period of time so that people that page will show and people can’t use it ( for example during a lengthy database upgrade or other maintenance period).
There is currently no great way to trigger the maintenance page, though we’ve discussing how best to implement something like this recently. The specifics may change, so for now I’ll just say that it’s on our roadmap and we’re aware that it’s a much-desired feature; we’ve prioritized accordingly
In the meantime you might try the work-around discussed here.
