Softr turns your spreadsheets (Airtable, Google Sheets) and databases into customer portals, internal tools, and any other custom app. Pick a template or start from scratch.

Trello is a web-based Kanban-style list-making application. Originally made by Fog Creek Software in 2011, it was spun out to form the basis of a separate company in 2014 and later sold to Atlassian in January 2017.