We created https://www.glideapps.com/ https://www.glideapps.com/ for the niche apps that people want, but Apple doesn't! Also powered by Google Sheets, as OP's

We created https://www.glideapps.com/ https://www.glideapps.com/ for the niche apps that people want, but Apple doesn't! Also powered by Google Sheets, as OP's app is.