Sheetsu - Turn Google Spreadsheet into API

Loopple - With Loopple, you can build your next Bootstrap Dashboard easily using drag and drop.

SpreadSimple - A blazing-fast way to create and manage sites using Google Spreadsheets

Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.

SheetAside - Access your Google Sheets from where you are

GTD Dashboard - A comprehensive Notion dashboard that helps you save time, and get more done.