Jack Dorsey’s latest app tracks sun exposure

Tomas Kauer - News Writer and Moderator

Jul 14, 2025 - 14:00

Jack Dorsey’s latest app tracks sun exposure

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

Tomas Kauer - News Writer and Moderator https://tomaskauer.com/

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