I'm systematically replacing my SaaS subscriptions with Single Serving Applications. These are purpose-built, AI-generated apps designed for an audience of one. Each clone is built by Claude Opus 4.6 from a requirements document, runs via Docker Compose, and costs essentially nothing to operate.
I recently had two AI models build a complete Harvest clone in under 20 minutes. The winning version covered 97% of Harvest's features. I'm seriously considering canceling my $180/year subscription and using it instead. That experiment got me thinking about something bigger than one app replacement. We're entering an era where a competent engineer with an AI coding assistant can generate a fully functional web application from a requirements document in the time it takes to eat lunch. That changes the economics of software in a fundamental way.