I work for Moovit, and a few weeks ago, we released a feature that indexes several thousand items into the CoreSpotlight index on iOS.
We index the entire list of all the transit routes in a city because we wanted the users to be able to search for them.
From what I know, this amount of data is not supposed to cause a problem with Spotlight.
We've been getting some complaints from users that launching our app causes the entire UI of iOS to freeze, including the app switcher and the home screen.
Because this is not a crash, we do not know the numbers or practically anything about this occurrence, but the user complaints seem to be on iOS versions 12.2 and 12.3.
After some testing we have determined that the new Spotlight indexing of routes was the root cause.
What can be done about this short of disabling the feature?
Is our utilization of Spotlight within defined parameters?
