Tessie

Tessie built a software business on Tesla's open API. Tessie is an app for Tesla owners built on Tesla's open API. It is held up as an example of a better software business built on a hardware maker's open access, growing into an app Tesla owners love.

It comes up as an example in a Sub Club conversation with Jelte Liebrand, who left Google to build Savvy Navvy, described as the Google Maps for boats. The material gives no numbers or details on how Tessie grew or how it is priced.

Sub Club