Asian markets are mixed after U.S. stock indexes hit new records on Monday. Oil prices fell and U.S. futures were little ...

Dorsey's initial investment has gotten the new nonprofit "andOtherStuff" up and running, and he worked on some of its initial iOS apps.

This marks the second new app Dorsey has launched in a week. But this one may especially appeal to Gen Z, whose tanning ...

Jack Dorsey, co-founder of Twitter, has launched a new app called Sun Day. This app helps users track their Vitamin D levels.

After launching Bitchat, the WhatsApp rival, Jack Dorsey has unveiled Sun Day, a new app that tracks sun exposure and vitamin ...

"Jack Dorsey's new app Sun Day is exciting, not to detect vitamin D levels but really to help us understand our UV index ...

Twitter co-founder Jack Dorsey's new app, called Sun Day, ostensibly helps users track UV exposure and vitamin D intake.

Twitter co-founder Jack Dorsey has released a new app that tracks your sun exposure and vitamin D levels. It’s his second app ...

The co-founder of Twitter, Jack Dorsey, announced the launch of a new decentralized peer-to-peer messaging app named Bitchat.

On Sunday, Twitter Co-Founder Jack Dorsey introduced Bitchat, a Bluetooth-powered messaging system offering offline, encrypted chat capabilities that work without internet or servers.

Block CEO Jack Dorsey has launched Bitchat, a new peer-to-peer messaging app that works entirely over Bluetooth mesh networks.