1. www.bitelia.com (15/10/2012)
   1. Contamoney
      1. Free account for personal use
         1. Invoicing module 10 euros/month
   2. Quaderno (Endeve)
      1. Intuitive and easy to use
   3. hazteunafacturae.com
      1. Recognised by the AEAT
         1. Free use without registration
   4. Anfix
      1. Managing multiple companies at once
         1. Free use for invoicing < 50000 euros