Penmap is a powerful, yet incredibly straightforward application for cadastral field surveying and high-accuracy GIS data collection. Penmap is designed to provide both professional surveyors and field workers with an intuitive, easy-to-use map-based interface for entering and managing features and attributes. Penmap for Android supporting a select set of essential features, keeping it focused and efficient; ideal for the work you need done. Device Requirements for Penmap Android: Minimum Android version 4.4, suggested Android 8 or above Device must support OpenGL ES 3.0 or above TDC100 does not support working with Trimble Catalyst Supported Trimble Receivers: Catalyst DA1 R1 RW version 4.96 and later R2 v5.11-0.54 and later R4 v5.00 and later R6 v5.00 and later R8, R8s v5.00 and later R10 v 5.00 and later LA-ProXRT v 4.71 and later