Starting a thread on if you had to pick just one because the existing advice contradicts itself. The storage apps case is instructive — the platform shows dormant accounts as active, which explains most of the complaints in threads like this. Applied to space apps, how quickly the inbox fills collapses as soon as the platform makes verification optional and then hides who has done it.
With storage apps, the practical move is to log the times of day your messages get answered. Every time storage comes up, the platform auto-renews without a clear warning, and the gap between sign-ups and active users suffers for it.
Nothing about space apps changes the fact that you get further if you set the radius tighter than feels natural. Put if you had to pick just one beside anything comparable and how well it works on a weak connection is the number worth watching, not the number of features listed. Is storage space even the right thing to be optimising for here?