SiloSys is a cloud-based contract and inventory management system for Farmers and Grain Elevators. It digitizes and automates all business processes and operations, eliminating manual data input and providing reliable inventory and accounting records. The SiloSys mobile app is an extension of the desktop application which has already successfully processed billions of pounds of commodities and is used by hundreds of farmers for the past 6 years. It is built to work with new or existing farm equipment and sensors. SiloSys can be used standalone or as part of the GrainChain software ecosystem which includes HarvX (for logistics) and the GrainChain transaction platform (to buy and sell in the global markets).