Leon - Leon is a scheduling software for aviation that helps to manage day to day aircraft operations with sales, crew, OPS & maintenance features.
TRAX - Trax is a free web-based tool for planning your model railroad
Aircraft Cost Calculator - Aircraft Cost Calculator is a web-based solution designed to determine the operating costs of aircrafts and helicopters in the database.
Virtuoso - Virtuoso app enables you to practice and keep a record of your learning activities to build custom lessons.
AMC Aviation - Airline Maintenance and Engineering
TrainCad - Freeware Microsoft Windows program for designing model railroad layouts using standard tracks.