Port @ firmas is the mobile application of the Ministry of Economic Affairs and Digital Transformation to access its portafirmas services. You must be a user of Port @ signatures to use this application.

From this mobile application you can:
- Access the signature requests that you have pending and those that you have already attended.
- Filter your application lists.
- Review the documents you must sign.
- Approve the applications that need your approval.
- Sign pending applications.

Access to the service is done by means of certificate authentication for greater security.