Sílica Express is an online invoicing software, created to serve self-employed people and small businesses, who issue invoices and equivalent documents infrequently, dispensing with permanent software for this purpose.

Based on the cloud, it allows self-employed people and small businesses to issue and send invoices and equivalent documents electronically. Sílica Express replaces traditional paper invoicing methods and provides a more efficient and convenient solution for those who do not need to commit to subscription software.