NFe Visualizador is a free Android app developed by NFeUp App that helps you manage your electronic invoices and receipts. With this app, you can keep track of your electronic invoices, receipts, and transportation documents such as CT-e. You can access these documents from your device's storage, email attachments, or cloud services like Google Drive and Dropbox.

The app offers various features, including the ability to view detailed information about each invoice, organize your purchases and sales, manage your payments and receipts, and obtain reports on your clients, suppliers, and transportation. You can also export data to Excel and synchronize your invoices and receipts with your email.

NFe Visualizador allows you to access your invoices and receipts directly from the SEFAZ portal, and you can obtain them by scanning QR codes or barcodes. The app also allows you to manage multiple companies, making it ideal for businesses of all sizes.

Overall, NFe Visualizador is an excellent app for managing electronic invoices and receipts. It is easy to use and offers a wide range of features that make it an indispensable tool for business owners and individuals alike.