I could probably look this up myself but i see additional value in engaging with this new community.
The most important function i am looking for is house members can see and create markers/pins on the map for others to see and optionally accessible using ios.
Organic maps is an android app that allows creation of markers offline in the app. So strap a tablet to the wall at home and you all can share markers. Unfortunately there is no sync or subscribe feature that I am aware of, so you won’t be able to access those markers from any other devices for now.
As for hosting, this is not how that works.
I found the ios version of organic allows me to use an osm account to retain custom data but a third party account is my least favorite option.
Forgive my ignorance. How do people normally plan routes on pc (or the shared wall tablet for examples sake) then be able to see that on their phones on the go.