Comment by mcsniff

My "side project" makes ~$5K/month but I am constantly worried about it not continuing to bring that in, so I keep my day job which is WFH and very easy.

I also never share it because I am concerned about a competitor coming in.

Took me about 6 months from publishing my app to hit $2k and another 3 months to hit $5k.

Edit: to clarify, I sell a physical product, so there are added costs in terms of manufacturing, shipping, stock keeping, etc...