iotlist - Discover the internet of things
Polaris Office Web Sheet - Simple open Sheet files on browser without sign-up
Fieldbook - Create a database, as easily as a spreadsheet
Magic Spreadsheet - Human workforce and AI plugged into your Google Spreadsheets
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Spreadsheet.com - Spreadsheets that come alive as applications