
A sales system the entire sales team now uses.
We built the app for their sales reps, the management dashboards and an assistant that looks up customers, stock and prices in their system. Libreta was born from that project.
D&C · Business Technology Studio
We make companies run more efficiently. We design systems that connect and simplify every area of the business.
LibretaField sales reps
+32 %more bought by customers visited with the app, at a distributor in Montevideo.
TildaloPurchase invoices
1 photoand the supplier invoice goes into your billing system on its own, with no manual entry.
RondínDelivery and routes
15 minbefore arrival, the customer gets a WhatsApp notice. Every truck leaves with its route planned.
EncargueOrders on WhatsApp
24 htaking orders on WhatsApp. It confirms price and stock and loads them into your system.
Strategic partners
D&C
We work like an accounting or law firm, but in technology: we understand how your business works, apply technology where time and money are lost today, and stand behind what we build.
Business Hub
The Business Hub is custom development, built for the way each company operates: we design it around its processes and the way it works. It brings sales, operations, administration, finance and people into one system, with the same data for everyone.
It is designed around your processes, and only the areas your company needs today are switched on.
It connects to your ERP (SAP, Odoo, Zureo or Doria) or works as your core system.
Ask about sales, stock or collections and it answers with your company's data.
Solutions
Each app solves a specific operational problem. Use them separately or connect them to the Business Hub.
Business Hub, Tildalo, Rondín, Encargue and Libreta are proprietary brands and products of Dearmas & Costantini.
The problem: entering supplier invoices by hand takes hours and lets price increases slip through.
Take a photo of the invoice and Tildalo loads it into your billing system on its own, with no manual entry. First it checks it against tax rules and tells you if a supplier charged you more than last time.
The problem: routes planned by eye and customers who don't know when the truck will arrive.
Rondín takes invoiced orders, builds each truck's route by zone and capacity, guides the driver and notifies the customer on WhatsApp 15 minutes before arrival.
The problem: orders that come in on WhatsApp and someone has to type into the system.
An agent understands the order (text, audio or photo), confirms price, stock and delivery day, loads it into the ERP and suggests what the customer usually buys.
The problem: reps working from spreadsheets, outdated price lists and orders that arrive late.
An agent shows each rep the opportunities at every point of sale: what the store stopped buying and what is worth offering. Reps have their route, prices and stock up to date on their phone and enter the order during the visit.
Visit the Tildalo website
Case studies
These are some of the companies that trust D&C to organize and grow their operations.

We built the app for their sales reps, the management dashboards and an assistant that looks up customers, stock and prices in their system. Libreta was born from that project.
Catalog, campaigns and conversion: it doubled its sales over the previous year.
Identity, website and launch strategy, with its own travel assistant.

It now gets more than 50 WhatsApp conversations a day from customers who find it on social media.
We work withDistributorsWholesalersManufacturersRetailersBrands that sell online
D&C Method
We don't take an order and disappear. We work with your team at every stage, with the same people.
We walk through the operation with your team: how you sell, buy, deliver and collect.
You getA clear map of your operation.
We pinpoint where time or money is lost and what to solve first.
You getA prioritized plan, with costs.
We decide which apps to use, what to connect and what to build custom.
You getThe system design and how it will be rolled out.
We install, integrate with your systems and train each team.
You getThe system running with your data.
We measure, adjust and support you, always with the same people.
You getOngoing support and improvements.
Federico and Gianluca are involved in every project. From the first diagnosis to support, you work with the partners.
Investors
We are opening the door for investors to take part in Tildalo, Rondín, Encargue or Libreta and share in their growth. Each app has its own brand, customers and recurring revenue.
Each one solves a specific operational problem and has its own market.
You getThe app presentation.
We show you customers, revenue, costs and the growth plan.
You getThe information to decide.
We privately set the amount, the stake and the timeline.
You getA written agreement.
The D&C team builds, sells and runs it.
You getRegular reports on its progress.
This section is for information only. It is not a public offering of securities or an investment recommendation. Each stake is reviewed and agreed privately and in writing, in line with applicable regulations.
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