App DIAN is a free Android application developed by the Dirección de Impuestos y Aduanas Nacionales. It falls under the category of Business & Productivity and subcategory of Finance. The app aims to provide different services and procedures related to tax obligations to the users.

With App DIAN, users can access a wide range of services and procedures according to their profile, whether it's on their own behalf, on behalf of a third party, or as a guest. Users can check the status of their returns, electronic invoices, tax obligations, and upcoming tax due dates. The app also allows users to update their email, telephone number, and password registered in the Single Tax Registry (RUT).

App DIAN provides users with a platform to connect with services like registration in the Single Tax Registry (RUT), renewal, recovery, or registration of the Electronic Signature (EF), and applying to the Simple Tax Regime (RST). Users can also fill out and submit their tax returns, consult the registry of electronic notifications, and find answers to frequently asked questions.

Although the app doesn't offer all the procedures and services yet, it is a useful tool for managing tax obligations. With the help of App DIAN, users can easily access and manage their tax information from their Android devices.