I kept missing Marketplace trends because I had no way to see which search terms were actually rising week-to-week. I built a simple tool that shows real momentum so I could launch earlier and run ads more efficiently. It worked for me, others asked for it, and now I’m turning it into a small micro-SaaS.
I like that you're measuring momentum instead of popularity.
Search volume tells you where demand is. The direction and consistency of that demand are what help someone decide before the market becomes crowded.