Comparison OpenTHC is a Free and Open-Source platform, started by the team behind WeedTraQR and now includes a community of tens of formal and informal individual contributors. MJ Freeway is an expensive, closed source system with a storied history of outages and security issues. MJ Freeway also makes LeafData which has numerious failed and delayed launches in Nevada, Pennsylvania and Washington. MJ FReeway OpenTHC Founded: 2007 2014 Team: Founders of WeedTraQR, and other community members Database: MySQL PostgreSQL App: PHP/Laravel PHP/Slim + RiotJS Data Integrity: Orphaned objects, missing primary keys.