Jack Dorsey Launches Sun Day, Elevating UV Tracking and Vitamin D Management

Introduction

Jack Dorsey, renowned for co-founding Twitter, is once again reshaping the digital landscape with his latest venture. Following the recent release of Bitchat—a Bluetooth-based messaging application—Dorsey has introduced Sun Day, an innovative tool designed to monitor UV exposure and track vitamin D intake.

Harnessing Technology For Health

Sun Day exemplifies the seamless integration of technology and daily wellness. Available exclusively on iOS via TestFlight, the app provides users with real-time UV index data based on their geographic location. In addition to critical weather parameters such as cloud cover, sunrise, and sunset timings, Sun Day enables users to select their skin type from six distinct categories. This personalized approach ensures that the app calculates the precise duration of safe sun exposure before the risk of skin burn becomes a concern.

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Open-Source Innovation

Dorsey’s commitment to transparency and developer collaboration is evident in the open-source nature of Sun Day. Its code is accessible on GitHub, inviting developers to clone and contribute to its continuous evolution. Notably, Dorsey leveraged Goose, an open-source coding tool, as opposed to more widely-recognized options like Cursor, Claude Code, or Windsurf.

Enhanced Features for Daily Wellness

In addition to UV tracking, Sun Day calculates and displays the minimum vitamin D intake required for optimal health. Users initiate a session via the ‘Track UV Exposure’ button, and upon completion, the app quantifies both the vitamin D generated during the session and the cumulative effect over the day. This holistic approach to sun exposure management is expected to appeal to health-conscious individuals and professionals seeking a balance between safety and sunlight benefits.

Conclusion

With Sun Day, Jack Dorsey extends his pioneering influence in the tech industry to improve personal health management. By fusing robust technological capabilities with actionable health insights, Sun Day offers a compelling model for future innovations across digital wellness applications.

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Cyprus Expects More French Visitors In 2027 As Air Capacity Expands

by THEFUTURE.TEAM

September 18, 2026

Cyprus expects more French visitors in 2027 as airlines increase capacity between the two countries, Tourism Deputy Minister Kostas Koumis said after meetings with tour operators in Paris.

France, one of Cyprus’ key tourism markets, has had a difficult 2026. French arrivals fell 46% year over year to 8,453 in August, from 15,663 a year earlier, according to the Statistical Service of Cyprus (Cystat). August arrivals were also nearly 50% below the 16,798 recorded in the same month of 2024.

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Overall, Cyprus received 2.82 million tourist arrivals between January and August, down 7% from the same period in 2025.

Air Connectivity Supports 2027 Outlook

Koumis discussed the 2027 outlook with senior executives from tour operators offering Cyprus holidays during the IFTM Top Resa travel trade fair in Paris.

Higher air capacity between France and Cyprus was a key focus of the talks. Participants also discussed the impact of geopolitical tensions in the Middle East on the French market and Cyprus’ efforts to adapt its tourism offering to French travelers.

“The French market is undoubtedly an extremely important market for our country’s tourism,” Koumis said, adding that France had regained importance only a few years ago and still had room to grow.

Improved air connectivity will be an important factor in that expansion, according to Koumis. “It is now clear that air connectivity between France and Cyprus is improving significantly, which is a basic prerequisite for the further growth of the market,” he said.

Cyprus Promotes Tourism And Regional Cooperation

Koumis attended the opening of IFTM Top Resa at the invitation of French Tourism Minister Serge Papin, who later visited the Cyprus stand. Held from Sept. 15 to 17 at Paris Porte de Versailles, the event brought together more than 32,000 tourism professionals representing 177 destinations and 1,650 brands, according to organizers.

During his visit, Koumis also met Egyptian Tourism Minister Sherif Fathy. Cyprus and Egypt reaffirmed their tourism cooperation and discussed opportunities to strengthen ties further.

French media interviews covered Cyprus’ tourism offering, infrastructure and services, along with efforts to develop specialized tourism products. Regional instability weighed on arrivals in 2026, particularly during the spring, although the decline narrowed over the summer.

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