Jack Dorsey has launched Sun Day, a new iOS app that tracks Vitamin D synthesis using real-time UV data. The app estimates ...

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

Jack Dorsey, a co-founder of Twitter, is developing a lot of apps. Earlier this month, Dorsey released Bitchat, a ...

Twitter co-founder Jack Dorsey’s new app Sun Day tracks your sun time and vitamin D levels with open-source AI tools.

The Sun Day app, just out in beta, will prompt you on how to prep for being out and about. The founder of Twitter, Jack Dorsey, has a bright idea that he's released as a beta app: Sun Day, for ...

Jack Dorsey’s new app wants to help you catch some sun — without the burn. The Twitter (now X) co-founder just launched a new iPhone app called Sun Day. It’s designed to track your UV exposure and ...

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

Named Sun Day, the app tracks UV exposure and vitamin D intake for users at their location. It is currently available via ...

Jack Dorsey, co-founder of Twitter, has launched his second app within a week, Sun Day, designed to help users track their 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 ...