Site management software
The intelligent layer for your site.
We connect the site to the office with no administrative effort. Voice notes and photos on your phone turn instantly into official site diaries, variation-order management and real-time financial control.
Without replacing what you already run. You approve every decision.

Partnered with
The problem
The real financial impact that destroys construction margins
Global sector data shows that the true cost of inefficiency for contractors and developers comes from manual management and the lack of data tracking:
>30%
Of the engineer's working day lost to manual reports and desk paperwork.
>70%
Of cost overruns on site caused by delays in formalising unforeseen events and extra work.
>14%
Of a project's total budget wasted on communication errors, rework and lack of proof for site supervision.
Fluxo eliminates this waste, turning your voice on site into official documentation on the computer, always under your final control.
What Fluxo ARC is
The site's paperwork, done before it reaches the office.
Fluxo ARC sits on top of the systems you already use, reads what's there and delivers the work ready: the RFI response, the extra work documented and ready to bill, the progress report. You read and approve.
It swaps nothing.
You keep working as always. Fluxo starts from what you already have — no migration and no new system to learn.
You're always in charge.
The agent prepares; the decision is yours. Nothing goes out in your name without your "yes".
Every number has a source.
Every output cites the document, the revision and the clause. When site supervision asks where it comes from, it's there.
How it works
How does Fluxo work in the day-to-day of your project?
Forget theoretical office software. Our system was designed to follow the real routine of a site management team, splitting the effort between quick capture on your phone and intelligent management on your computer. Click the steps below to see the technology working with you, from the site to the final decision:
The work on site (mobile app)
Data Capture on Site
During daily walks around the site, the site manager records a quick voice note or takes a photo straight from the phone to report progress, an unforeseen event or a subcontractor stoppage. No forms to fill in and no records lost on WhatsApp.
Triage by Eng. Flupro
Your agent, Eng. Flupro, listens to the audio or analyses the image and immediately understands the civil-engineering technical context. It cross-checks that information on the spot with the project documents, the contract and the safety plan (PSS).
AI Agent Orchestration
Instead of letting work pile up, Eng. Flupro delegates tasks in real time to its team of specialised agents (Legislation, Costs and Planning). These agents analyse the project's financial impacts and schedule deviations in parallel.
Automation and management (web platform)
Technical Work Automation
Fluxo prepares the drafts of the official documents you need: it pre-fills the lines of the Digital Site Diary (with automatic weather), drafts Requests for Information (RFIs) for the designers or drafts Variation Orders.
Human Decision and Approval
The final word is always the engineer's. Before any email is sent or a document goes to site supervision, the site manager reviews the draft created on the web platform, makes any changes they see fit and approves its submission.
Always behind a human gateDashboard and Financial Control
At the end of the day, at the office or at home, just open the computer/tablet to manage the project. Fluxo presents productivity statistics, risk alerts on the critical path and the evolution of the S-curve and financial margin for strategic decisions.
One flow, start to finish.
Pick a day-to-day site job and see what Fluxo ARC does, step by step: from what happens on site to what you receive. The agent prepares. The decision is always yours.
Cross-Validation
Catches the project's contradictions at the start, before work begins.
Catches what normally only surfaces once work is already underway.
What happensat the office
Load the full project
At kick-off, bring together the drawings, the spec, the bill of quantities and the contract, in 2D or 3D, however they come.
Sub-agent
Per-discipline readers
Each discipline (architecture, structure, HVAC, electrical) is read separately to understand what it requires.
Agent
Cross-Validation agent
Works through the bill of quantities item by item and cross-checks drawings against text, looking for three things: the same element described differently across documents, clashes between disciplines, and teams working off different revisions.
Sub-agent
Contract rule
When there is a contradiction, it decides which document prevails, following the hierarchy set in the contract.
Your decisionat the office
You validate the list
You review the contradictions found, each with its confidence level, and confirm.
What you receive
List of errors and omissions + requests for clarification
Ready to present to site supervision within the legal deadline and to send to the designer. What would slip through costs dearly later. Here it comes out resolved at the start.
Technical RFI
Resolves design queries without leaving the work stalled, waiting.
Minutes to prepare, instead of days stalled and waiting.
What happenson site
Find a contradiction on site
Take a photo and dictate a voice note explaining what does not line up between the documents.
Agent
Technical RFI agent
It grasps what is going on, reads the two conflicting documents and identifies which prevails: the most recent revision and the contract hierarchy.
Sub-agent
Drafting the request
It writes the request for clarification already carrying the document reference and the impact on cost and schedule if it is not answered in time.
Your decisionon site
You approve, in one tap
You confirm on your phone. Nothing goes to the designer without your sign-off.
What you receive
Request sent, logged and tracked
It goes to the designer, stays on record with a response deadline and, if it runs late, is escalated automatically. You stop losing days waiting.
Commercial RFI
Extra work asked for verbally? It settles the scope and protects the margin before you execute.
Margin protected before the extra work even starts.
What happenson site
Someone asks you for extra work, verbally
On site, someone asks for one more job. Take a photo or dictate a voice note explaining what they are asking for.
Agent
Commercial RFI agent
It reads the contract and the spec and settles the essential question: is this request within the contracted scope, or is it extra work that has to be paid for separately?
Sub-agent
Drafting the RFI citing the clause
It writes the request with the exact clause that backs it and a note on the cost and schedule impact, so the extra work does not go unbilled.
Your decisionat the office
You approve; the client signs the variation order
You review the scope and the value. The extra work only proceeds with the variation order signed by the client.
What you receive
Written record + variation order, ready
Everything is documented before you execute: what was requested, the clause and the agreed value. The margin is protected, instead of lost in a verbal request.
Change Impact
Calculates the real impact of each change on schedule and on cost.
The real impact in minutes, and nothing left unbilled.
What happensautomatic
A design change arrives
Usually by email from site supervision, or a request made on site.
Agent
Change Impact agent
It reads the change and grasps exactly what changes.
Sub-agent
Impact on schedule
It sees which tasks are affected and recalculates the critical path to know how many days the change costs.
Sub-agent
Impact on cost
It updates the budget for the affected part and prepares the variation order with the correct margin.
Your decisionat the office
The client approves in writing
You review the calculation. The change only proceeds with the client's written approval.
What you receive
Variation order + extension of time request, ready
You know the real impact in minutes, not weeks, and the extra work is documented, instead of going unbilled.
Material Approval
Checks each proposed material against the spec and the standards.
Materials approved without weeks of waiting.
What happenson site
A supplier proposes a material
Photograph the product's technical data sheet (and the sample, if there is one).
Agent
Material Approval agent
It confirms the proposal carries everything it needs: technical data sheet, declaration of performance, CE marking and test certificates.
Sub-agent
Conformity check
It compares the material against the spec and the standards: does it meet the specification? is it an acceptable equivalent? is the CE marking valid?
Your decisionat the office
Site supervision decides and signs
You submit. Site supervision or the client gives the final decision: approved, approved with conditions or rejected.
What you receive
Approval form filled in
With the reasoned decision and the record of everything approved and rejected. The right material goes in without weeks of standstill.
Risk Detection
Anticipates schedule and cost overruns weeks ahead.
You see the overrun weeks ahead, not at the last minute.
What happensautomatic
Gather the week's data
Real site progress, costs, and how quickly answers to requests and approvals come in.
Agent
Risk Detection agent
It compares what was done against what was planned, on schedule and on cost, and measures where the work really stands.
Sub-agent
Warning signs
It cross-checks several signals: subcontractors missing dates, output below plan, costs drifting, answers taking too long.
Sub-agent
Diagnosis and recovery plan
It classifies each work front (on track, attention or critical) and, if needed, proposes a plan with scenarios to recover.
Your decisionat the office
You decide the action
You see the full picture and decide what to do. If it is critical, you take the warning to the client with the cause and the plan.
What you receive
Weekly traffic light per work front
A simple read, with the cause and what to do next. It anticipates the problem instead of discovering it too late.
Integrations
Sits on top of what you already have. You change nothing.
Productivity, ERP, planning, CAD/BIM, storage. ARC reads your data where it already is, with no exports or manual copies.
- Productivity: Microsoft Excel, Microsoft Word, Microsoft Outlook, Google Workspace, Microsoft Teams
- ERP: PHC, Primavera, Sage, CentralGest
- Planning: Microsoft Project
- CAD / BIM: AutoCAD / DWG, CYPE, Navisworks / Solibri, IFC / openBIM, Autodesk Construction Cloud
- Storage: OneDrive, Google Drive, SharePoint
Don't see your tool? We'll talk about it in the conversation.
Testimonials
People on the ground recognise the problem.
What we heard from site managers across Portugal during validation.
It's a real problem, and it cuts across everything I've been through on site. A tool like this, working, would save us so much time, and headaches.
It makes total sense. It's exactly the kind of intelligence that's missing between the systems we already use day to day.
It makes total sense. The sector has to enter a new phase, supported by AI, and this points that way.
This was the top of it, really. It tackled what drains me most in the day-to-day of the site.
Count me in to help build this. It's an idea the sector needs.
It's a real problem, and it cuts across everything I've been through on site. A tool like this, working, would save us so much time, and headaches.
It makes total sense. It's exactly the kind of intelligence that's missing between the systems we already use day to day.
It makes total sense. The sector has to enter a new phase, supported by AI, and this points that way.
This was the top of it, really. It tackled what drains me most in the day-to-day of the site.
Count me in to help build this. It's an idea the sector needs.
Your data
Your data stays where it already is.
Fluxo ARC reads and prepares. It doesn't move your documents without your control. GDPR-compliant, with data in the European Union, and every action carries a full record: who, when, with which sources.
GDPR and data in the EU
GDPR compliance, with data hosted in the European Union.
Data sovereignty
The documents stay with you. You keep control.
Audit trail + human gate
Nothing acts without your yes, and everything is logged.
Frequently asked
What contractors ask first.
Let's do this
Let's co-build this with you.
We're looking for Portuguese contractors to co-create the agents with real cases. 30 minutes, no commitment. We'll show you how the agent works on a site like yours.



