I was reading an interview where a developer said: Software businesses are incredible in the way they can deliver passive income once you get them rolling, and especially a subscription app. If you build something that people care enough about to subscribe to and it has reasonably good retention, you don’t have to be working on it day in, day out for it to continue to be profitable. It looks normal to me, as I’ve been trying to build a “passive income” business for .
https://flaviocopes.com/passive-income-developers/