The Twitter cofounder’s latest wellness app tracks your UV exposure and vitamin D intake. Twitter cofounder Jack Dorsey is ...

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

Jack Dorsey has been back in the news lately after unveiling a pair of new apps he worked on, Bluetooth-based messenager ...

Tech entrepreneur Jack Dorsey has released a pair of apps recently, continuing his focus on decentralized communication. Tech ...

Jack Dorsey is shipping. On Sunday, the Twitter co-founder shared a link on X (formerly Twitter) to a new app called Sun Day, ...

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

Jack Dorsey launches Sun Day to track UV exposure and Vitamin D intake, following his Bluetooth-based messaging experiment ...

Jack Dorsey has launched Sun Day, an iOS app that tracks UV exposure and estimates vitamin D levels based on location, skin ...

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

Another day, another app from Jack Dorsey. The Twitter co-founder has announced an app called Sun Day just one week after ...