Spireworks is a free iPhone application developed by Spireworks LLC. This lifestyle app allows users to sign in and control the lights of iconic buildings in New York City using their mobile phones. With a range of different colors and special effects, users can customize the lighting of One Bryant Park and One Five One, two of the most recognizable buildings in the city's skyline.

One of the key features of Spireworks is the ability to see the lights on the spires change colors in real-time. Users can witness the stunning visual transformation of these buildings right before their eyes. Additionally, Spireworks supports and partners with various charities, taking over the spire for special events. Users can donate towards a good cause and gain special access to exclusive features.

Whether you're a New Yorker or a visitor to the city, Spireworks offers a unique and interactive way to engage with the iconic architectural landmarks of New York City. Sign up for an invite from within the app and experience the magic of controlling the lights of these spires.