Currently there’s only 3 big players when it comes to maps. You’ve got Google, Apple and Microsoft.
Let’s try to make OpenStreetMap the best map there is. Go grab StreetComplete and start mapping your surroundings when you’re out and about.
All the data is under a public license and managed by a non-profit foundation in the UK.
It’s very easy to get started, and quite addictive.
There should be something for grabbing store information too. Like phone numbers, websites and open hours
Open hours is a task in StreetComplete, so that’s covered. For additional metadata you’d probably have to use something like OrganicMaps and be logged in there. It’s quite possible to add the data if you want to, even without going to the computer and doing it from there.
Just noting that while Organic Maps does allow a pretty good level of editing, it’s not a feature complete map editor. There are many others apps/sites that are purpose-built for editing if you need more functionality. i personally use Vespucci on Android.