Jack Dorsey’s latest app tracks sun exposure
: man jul 14, 2025 10:21 am
Twitter co-founder Jack Dorsey's new app, called Sun Day, ostensibly helps users track UV exposure and Vitamin D intake.
Source: https://techcrunch.com/2025/07/14/jack- ... -exposure/
Source: https://techcrunch.com/2025/07/14/jack- ... -exposure/