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The a1ERP alternative built for your team, not just accounting

a1ERP handles accounting and invoicing well, but when you need CRM, internal communication, project management, and AI on the same platform, UTILIA OS is your next step.

  • Outdated interface that slows down daily teamwork
  • No internal communication tools or team chat
  • No visual CRM: very limited sales management
  • Requires costly and lengthy implementation to get started
Why look for an alternative

a1ERP focuses on accounting, your business needs more

a1ERP is a reliable solution for accounting and tax management. But today's SMBs need much more: a visual CRM for managing opportunities, internal communication tools, project management, and AI-powered automation. UTILIA OS brings it all together in a modern interface with no implementation needed.

Comparison

a1ERP vs UTILIA OS

A transparent comparison. We acknowledge a1ERP's accounting strength and show where UTILIA OS expands the possibilities.

Feature
a1ERP
UTILIA OS
CRM and client management
Basic
Invoicing and quotes with VeriFactu
Integrated accounting (Spanish PGC, tax forms, annual accounts)
Invoice customization
Basic
Client portal with card payments
Time tracking and time off
Basic
Salary calculation and payslips
Basic
Project management
Team chat
Video calls
Email marketing
AI included in the plan
Connect Claude or ChatGPT to your data
Training and gamification
Support tickets
Basic
Warehouse and purchasing management
Automatic bank connection
Priced per company, not per user

Comparison based on publicly available information about a1ERP as of April 2025. Both platforms cover accounting and invoicing. UTILIA OS adds a client portal with card payments, a visual CRM, chat, video calls, and AI included in the plan. UTILIA OS does not calculate salaries and has no automatic bank connection: statements are imported as CSV or Norma 43 files. Warehouse and purchasing live in the Operations app, an add-on to the Advanced plan. UTILIA OS features reviewed in September 2026.

From a traditional ERP to modern business management

If a1ERP has served you well for accounting and invoicing, UTILIA OS is the natural evolution. Beyond full accounting with automatic journal entries and VeriFactu compliant invoicing with your own branding, you'll get a client portal with card payments, digital time tracking and time off, CRM with a visual pipeline, team chat, video calls, project management, and AI included in the plan. Everything connected, without duplicating data or hiring consultants.

What UTILIA OS gives you beyond a1ERP: every invoice generates its journal entry with no intervention, clients pay by card from their own portal, and the whole team clocks in, chats, and works in the same place. What it does not give you: salary calculation or an automatic bank connection.

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Planned opening: October 2026

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