LEGO Builder for iPhone

Quick summary of the app

LEGO Builder is the official LEGO mobile application that provides digital building instructions for many sets. It offers both downloadable PDF guides and an immersive 3D instructions mode that helps users assemble selected models step by step.

How to locate instructions

• Search for your set directly inside the app to pull up available manuals and building files.
• Scan the QR code printed on the cover of a paper instruction booklet to open the corresponding digital guide instantly.
• Browse the app’s extensive digital instruction library to discover hundreds of different manuals and sets.

Interactive 3D assembly tools

The app includes a 3D-assisted building experience that walks you through construction visually. Use the on-screen 3D model (look for the 3D building icon) to rotate and zoom at any moment, making it easier to see piece placement and follow complex steps.

Connectivity, updates, and availability

A steady internet connection is required to access and download many of the app’s features. LEGO Builder is regularly expanded with newly released sets, so you’ll find fresh builds and challenges added over time.

Encouraging creativity and feedback

Beyond following instructions, the app supports free-building and imaginative play by giving kids tools and inspiration to design their own creations. If you have suggestions or thoughts on improving the app, please share them via the in-app comments or feedback form — the developers welcome user ideas.