A recent post cited how much in the way of donations an instance received. Perhaps we need some sort of fund raiser to produce apps, and if they are all free or open source software, sync the features, so they are all working properly and to a specfic standard.
It doesn't matter if we have 10 apps, all with the same features, but with different UI's it gives people choice of UI without having to choose between feature x and feature y across different apps.