Best Invoicing Apps for Freelancers in Spain 2026

There are dozens of options. Which one deserves your money? We analyze the most popular ones in Spain for freelancers.

1. k-factu: the most Verifactu-ready

Price: from EUR 9.99/month. Verifactu: integrated from day one. OCR: included in paid plan. Languages: 5 (ES, EN, FR, DE, PT). Best: honest price, clean interface, no unnecessary features. Worst: newer than competitors, smaller community.

2. Holded: the most complete

Price: from EUR 29/month. Verifactu: 'coming soon' (not yet implemented). OCR: extra cost. Best: all possible accounting features. Worst: high price for basic freelancers, Verifactu still unavailable.

3. Quipu: the most established

Price: from EUR 13/month. Verifactu: partially implemented. Best: AEAT integration, many users. Worst: outdated UX, performance issue reports.

4. Billin: the cheapest

Price: from EUR 6.60/month. Verifactu: planned. OCR: not included. Best: very low price. Worst: Verifactu unavailable, questionable support.

5. Contasol: the most complete for accounting

Price: free with limitations. Best: full PGC accounting, very powerful. Worst: Windows only, legacy interface, no OCR or Verifactu.

Which to choose?

For freelancers needing Verifactu now (and you should): only k-factu has it integrated and working. For basic needs: k-factu or Billin. If you need full accounting: Holded. To start free: k-factu's free plan (5 invoices/month).