Best Contasimple Alternatives ranked by AI · updated Aug 2026

Contasimple is Spanish online software for invoicing, accounting, and business administration. It is aimed primarily at freelancers and small companies that need straightforward billing and tax-related tools.

Developer: Contasimple Price: Free plan available; paid plans from €9.95/mo 🎯 contasimple.com

Top 6 Contasimple alternatives

1 Odoo logo

Odoo is an all-in-one management software that offers a range of business applications including CRM, e-commerce, accounting, inventory, and more.

Starting from $20 per user/month

4 AgenterBooks logo

AgenterBooks

Agenter

AgenterBooks is online accounting and invoicing software for freelancers, small businesses, and accounting professionals. It combines bookkeeping, billing, and financial administration in...

Pros

  • Combines invoicing and bookkeeping in one platform
  • Designed for Spanish-speaking small businesses and accounting workflows
  • Web-based access avoids maintaining desktop accounting software

Cons

  • Less internationally established than QuickBooks, Xero, or Sage
  • May offer fewer integrations than larger accounting platforms
  • Pricing and feature availability are not clearly published
5

Sage 50

Sage

Sage 50 is accounting and business management software for small and midsize businesses that need desktop-based financial control with connected services. It...

Pros

  • Closer to Attaché's desktop accounting model than fully cloud alternatives
  • Strong financial controls, reporting, and audit-oriented workflows
  • Supports inventory and job costing better than many entry-level cloud tools

Cons

  • Cloud collaboration is less fluid than Xero or QuickBooks Online
  • Pricing and features vary substantially by country
  • User interface is less modern than newer SaaS accounting platforms

From approximately $595/year

6

Anfix

Anfix

Anfix is cloud accounting and invoicing software aimed at Spanish freelancers, businesses, and accounting firms. It supports billing, bookkeeping, bank reconciliation, tax...

Pros

  • Close Spanish accounting and tax workflow fit
  • Strong collaboration features for businesses and advisors
  • More specialized bookkeeping automation than basic invoicing apps

Cons

  • Less suitable for international accounting requirements
  • Some advanced functions require more expensive plans
  • Smaller ecosystem than Sage or Zoho

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