iotlist - Discover the internet of things
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Fieldbook - Create a database, as easily as a spreadsheet
Magic Spreadsheet - Human workforce and AI plugged into your Google Spreadsheets
Sheetsu - Turn Google Spreadsheet into API
Dabble Writer - Writing software for novelists.