Duetri
DuetriAtrium
Atrium
Software for property managers
Disponible

The property manager's office,
without the 1998 ERP.

Fees, levies, meetings, minutes, contracts, owner communication — all in a modern layer, with AI built-in, EU-hosted data. Atrium replaces CISI, Gesfincas, TAAF or Fynkus, it does not sit on top of them.

from
€0.15/unit/month (Founder)
status
Live
migration
Included
app.duetri.com/fincas/calle-mayor-12
The problem

Replace your current software,
don't stack another tool on top.

Today

CISI, Gesfincas, TAAF, Fynkus…

  • Desktop ERP that only one person can open from their machine
  • Parallel spreadsheets for meetings, levies and late payments
  • Email for everything: owners, vendors, bank
  • Folders of unsorted PDFs — the 2017 minutes live on some disk
  • Separate payment gateway, never reconciled
  • Zero mobile visibility for owners
With Atrium

One office, everything inside

  • Replaces your current software (CISI, Gesfincas, TAAF, Fynkus…), not bolted on top
  • A single web workspace accessible anywhere, plus an owner portal
  • Fees, levies and bank reconciliation with integrated payments
  • Owner communication from the property record itself
  • AI search across minutes, contracts and emails — find that 2017 record in seconds
  • AI assistant that drafts notices, minutes and replies
  • Migration from your current software included for the founder firm
Features

Everything your office
does every day.

Eight modules. One interface. No endless tutorials — your team is up and running in under a week.

Property portfolio

One record per property: owners, doors, coefficients, contracts, history. Instant search.

Fees and assessments

Mass generation, automatic bank reconciliation, late payment tracking.

Meetings & minutes with AI

Auto-generated notices. Minutes drafted from your audio. Native e-signature.

Owner communication

Web and mobile app for residents. Notices, issues, online voting between meetings.

Maintenance

Issues assigned to vendors. SLA tracking. Per-property history. Automatic renewals.

Vendors and contracts

Vendor catalog. Contracts linked to properties. Renewals and comparisons.

Atrium assistant

Answers LPH regulation questions. Searches contract clauses. Drafts replies in your tone.

Reports & meetings

Per-property P&L, annual comparisons, board-ready reports in one click.

Atrium in action

Screenshots coming soon.

We're preparing updated screenshots of the interface. In the meantime, you can request a personalized demo to see Atrium in action with your data.

We're preparing updated screenshots of the interface. In the meantime, you can request a personalized demo to see Atrium in action with your data.

Pricing

A single rate.
Per managed unit.

Founder firmYear 1: €0.15/unit/month · €39/month minimum · no lock-in. We're looking for a founder firm to refine Atrium before opening to the wider market.
Atrium · Standard
0.25€
per managed unit · per month
Monthly minimum: €59/month
  • All features included
  • Internal firm users at no extra cost
  • Owner web and mobile portal included, no limits
  • 50 free AI actions per month per firm · opt-in extra usage (€0.05/action)
  • Migration from your current software (CISI, Gesfincas, TAAF, Fynkus…) included
  • Email support · 24h business response
  • 99.5% monthly SLA
  • EU-hosted data (Frankfurt) · TLS 1.2+ and AES-256
Calcula tu cuota
¿Cuántas viviendas gestionas?
450
min 50 — máx 3000+ (contacta para volumen)
Tu cuota estimada · Cliente Fundador (Año 1)
68 €/mes
450 viviendas × 0,15 €/mes · IVA no incluido
Solicitar demo de Atrium
Monthly billing · no lock-in · 15% discount on annual prepay · VAT not included
FAQ

What everyone
asks.

Does Atrium replace my current software or sit on top?
It replaces it. Atrium substitutes CISI, Gesfincas, TAAF, Fynkus and similar tools. It's not an add-on or a layer on top — your firm stops paying for the legacy ERP and runs from Atrium.
Can I migrate from CISI, Gesfincas, TAAF or Fynkus?
Yes. For the founder firm, migration is included at no extra cost. We accept exports from the main property-management ERPs and generic Excel/CSV via our official template.
How much does it cost?
Standard rate: €0.25/unit/month, €59/month minimum, no lock-in. Annual prepay: 15% discount. Founder firm Year 1: €0.15/unit/month, €39/month minimum; Year 2: €0.20/unit/month, €49/month minimum; Year 3 onwards: standard rate.
What about AI usage — is it charged separately?
50 free AI actions per month per firm (assistant chat, OCR, drafting, minute summaries, issue classification…). Resets on day 1, no rollover. If you need more, you opt in with a monthly cap that you define, at €0.05 per action. Off by default.
Where is the data hosted?
In the European Union: database on Neon (Frankfurt) and application hosting on Railway (EU West). TLS 1.2+ in transit, AES-256 at rest. 99.5% monthly SLA.
Who are the subprocessors?
Neon (database, EU), Railway (hosting, EU), Resend (transactional email), Anthropic (Claude AI models — data is NOT used for training) and Sentry (error monitoring). Full list and DPAs at /legal/subprocesadores.
Is there a minimum commitment?
No lock-in. Sign up and cancel whenever you want. If you leave, you export all your data in open formats (CSV, JSON, PDFs) at no cost.
Is Atrium already in production?
Yes. Atrium has been live since May 2026 and is being refined alongside a founder firm before opening to the wider market.
Does Atrium generate Verifactu-compliant invoices?
Yes. Atrium's ERP generates the XML, computes the fingerprint and builds the Verifactu QR code for every invoice issued. Official AEAT enrolment is completed on request when the client needs it.
Atrium

Atrium is live.
We're looking for a founder firm.

If you want to replace your current software and join as our founder firm, let's talk for 30 minutes. We'll load one of your portfolios and see how it runs in Atrium.