Jack Dorsey's new app tracks your sun exposure

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

While Bitchat is an internet-free app for communicating with friends over Bluetooth, Sun Day is all about, well, the sun. The latest app tracks your UV exposure and how much Vitamin D you get. It does this using a few personal details, including your location. Sun Day also asks you to share what kind of clothing you're wearing, such as "light (shorts & t-shirt)." There's an additional space for you to share your skin type, choosing from one of six options. 

From there, it shows you the current UV index, high for the day, sunrise, sunset and burn limit — or the time you can be outside before your skin starts to burn. You can get your supposed vitamin D intake while outdoors by clicking "track UV exposure." 

track your (vitamin) D

a Sun Day app for Sunday.https://t.co/KKsq3LkLEj

— jack (@jack) July 13, 2025

Like its week-old sibling, Sun Day is currently available in beta on TestFlight. You can download the service through Apple's App Store and see if there are spots available to try out Sun Day. 

This article originally appeared on Engadget at https://www.engadget.com/apps/jack-dorseys-new-app-tracks-your-sun-exposure-123306124.html?src=rss https://www.engadget.com/apps/jack-dorseys-new-app-tracks-your-sun-exposure-123306124.html?src=rss
Creată 6h | 14 iul. 2025, 13:10:12


Autentifică-te pentru a adăuga comentarii

Alte posturi din acest grup

Threads users still barely click links

Two years in, Threads is starting to look more and more like the most viable challenger to X. It passed 350 million monthly users earlier this year and Mark Zuckerberg has predicted it could be Met

14 iul. 2025, 17:40:42 | Engadget
The UK needs to deal with its e-scooter problem

E-scooters could be a vital tool to eliminate unnecessary car journeys, cutting emissions and journey times. Unfortunately, the UK is the last major European nation to not allow them to be ridden o

14 iul. 2025, 15:30:10 | Engadget
Quicken Simplifi plans are half off right now

Budgeting is really hard. Basics like groceries, rent and transportation are expensive enough without all the tempting extras like a nice dinner or new gaming console. It's all too easy to end the

14 iul. 2025, 15:30:08 | Engadget