Subastas de la Agencia Tributaria is a free Android application developed by Fco. Javier Fernández Saavedra that provides a detailed guide to participating in public auctions for seized and mortgaged goods by the Spanish Tax Agency. The app provides information on the three types of auctions, namely, public auctions, contests, and direct awards, along with the requirements and procedures to participate in each of them. The app also features a glossary that explains the key terms used in the auction process. With its easy-to-use interface and comprehensive information, Subastas de la Agencia Tributaria is a must-have for anyone looking to participate in public auctions in Spain.