Binary Thumbs (operating name Binary Thumb, Y Combinator Summer 2012) was a San Francisco startup founded in 2012 by Josh Leong, Michael Lin, and Matt Monson to reinvent the spreadsheet for touch devices. Its product, Grid, was a collaborative grid-based spreadsheet and organizational app for iPad and iPhone.
The company raised roughly $2.15M across its YC round and a 2013 seed, and appears on the Andreessen Horowitz public investment list.
Status: inactive. Y Combinator lists the company as Inactive; Josh Leong led it as CEO from 2012 to 2016. The Grid App Store listing returns 404, and the historical binarythumb.com domain now serves unrelated affiliate content, so it is not wired as a company website property.
Binary Thumb never shipped a public API, developer portal, or documentation. Its remaining public technical footprint is the BinaryThumb GitHub organization and a few open-source React/JavaScript libraries on npm, catalogued in packages/.
Backed by: a16z