Comment by reaperducer

When I moved to a new apartment in 2021, I did a tally and there was something like 17 new apps associated with it. Off the top of my head:

  - Rent payment/contracts app
  - Rent deposit app (for some reason a different app)
  - Maintenance app
  - Community notices/amenities app
  - Dry cleaning app
  - Package app
  - Pet concierge app (reserve the dog park, etc.)
  - Apartment building parking/valet app
  - App for the company that owns the building so you can use amenities at any of the other company buildings in town
  - Another company app so you can reserve a guest suite at another company-owned building in another city
  - App to unlock your apartment door if you lose your fob
  - App for the restaurant in the lobby
  - Internet company app (Man, that place had great internet.  I miss that the most.)
  - Satellite TV company app
  - City parking app

There were other apps, but I don't care enough now to go looking for the list I made back when I cared about it.

From a technical standpoint, almost all of those apps could be consolidated into one app, but that's not how the real world works. These days companies outsource each little function to a different provider, and each of those providers has its own app.