Ultimate Brick Index is an iPad app for construction-set enthusiasts who want to organize and manage their collections in detail. Developed by Pol Zamora Planelles, it lets users record individual parts by name, part number, color, quantity, and condition, with condition ratings ranging from Mint to Poor. Pieces can be grouped into categories such as Bricks and Plates, and rare items can be marked for easy identification.

The app provides a dashboard for viewing tracked sets, cataloged parts, rare pieces, achievements, and estimated collection value. Users can monitor each set’s piece count and completion status, while statistics also summarize active listings and completed sales. A Shop feature supports sales tracking, and quizzes and achievement milestones add a gamified element to the collecting experience. The app is listed as free, with optional premium features and offers described on its download page. It is designed for iPad, requires iOS 16.0 or later, and is approximately 10 MB. The interface is in English, and the listed age rating is 4+.