Free
Best for: Getting into Hacienda, Seguridad Social and the NIE paperwork without a certificate on a laptop.
Platforms
iOS + Android
Needs
NIE + Cl@ve registered
Register at
Hacienda or online
Opens
AEAT, Seg. Social, SEPE
Language
ES / CA
✓One identity across every national government site
✓PIN arrives in the app instead of by SMS
✓Saves a trip to the office for anything filed online
×Registering usually means one in-person appointment
×No English; the wording is pure administrative Spanish
From the Apps to download comparison in Barcelona. Prices checked August 2026.