A grocery list app is the perfect example of the kind of thing that AI will make obsolete. Why would I pay $5/month for a list app when I can pay Claude $0.30 one time to make it for me?

I in fact did just that. I used Claude to reverse engineer my grocery store's API and build a grocery list app that automatically pulls in the aisle information for each item and sorts it by how I typically walk through the store. It's the kind of thing that would be incredibly difficult to scale but works just fine when you only have one user. No SaaS grocery app can hope to compete with me being able to tailor my own shopping list app to my exact preferences.