Collecta is a design tool that helps save and organize inspiration.
It has a web dekstop/mobile app, as well as a macOS desktop app.
I built it because I always wanted something like this. I handled idea, design, frontend, implementation, devops, and marketing, while my partner helped me with the backend and payments.
We went to YC Startup School with this project which was a tremendous experience in terms of learning how to actually launch something real, not just hand the designs off.