Trimble Catalyst is a software-defined GNSS positioning solution that delivers professional-grade accuracy using a compatible mobile device and Trimble GNSS antenna. The system allows users to transform a smartphone or tablet into a high-precision GNSS receiver capable of achieving sub-meter to centimeter-level accuracy, depending on the subscription service. The Trimble Catalyst platform combines GNSS hardware with cloud-based correction services and positioning software. It is widely used for GIS data collection, asset mapping, land surveying, environmental monitoring, and infrastructure management. With its flexible subscription model, Catalyst allows organizations to scale accuracy levels based on project requirements, making it an efficient and cost-effective solution for geospatial data collection workflows. Through the Topotronix platform, geospatial professionals and surveying companies can access innovative positioning solutions like Trimble Catalyst, enabling accurate field data collection using mobile devices and GNSS technology.