After a long period of almost no sales, I decided to make the Flavordex Android app free. As expected, the number of installs has increased significantly. I do not yet have a plan for how the app will support itself financially. I’ll figure that out if the app becomes popular.
The backend is hosted on my own server, which I use for many purposes. The photos are hosted on Amazon Web Services, so that cost will scale with use. Right now it falls under the free tier limit, so its cost is 0 until that runs out.
I don’t want to put ads into the app, but I might put them on the website if there is enough traffic. Another possibility is to accept donations from the users.