Boldt Castle is a free Android app developed by STQRY Apps, designed to provide visitors with a comprehensive guide to the historic Boldt Castle. The castle is known worldwide for its love story, the Boldt family's rags to riches story, and the ongoing restoration efforts of the Thousand Islands Bridge Authority.

The app offers deeper insights into the castle's history through audio and imagery, detailing the Boldt family's intended plans and the restoration efforts of the Thousand Islands Bridge Authority. Additionally, the app provides essential information such as maps, restroom locations, concession and picnic areas, gift shops, and more.

Overall, Boldt Castle is a must-have app for anyone planning to visit this iconic destination. With its comprehensive guide and helpful information, visitors can make the most out of their trip to Boldt Castle.