Custom software
for your business

Custom web apps, mobile apps, portals and websites your team and customers actually use. Fixed scope, senior engineers, and a working product you own.

Book a 20-minute call

Let's sit down and align on how we can help your business

We build and integrate withiOSAndroidWebStripeSalesforce

Built for how you work

Stop bending your business
around off-the-shelf software.

For companies that have outgrown spreadsheets, patched-together SaaS, or a website that no longer matches the business. You bring the operation; we build the software around it.

Know what to build first.

A paid discovery sprint maps your workflows, users, and systems, then turns them into a clear scope, timeline, and fixed price.

01 / Discovery and scope

Ship something real.

Web apps, mobile apps, portals, and websites built in two-week sprints. You see working software from week two, not a slide deck at month six.

02 / Design and build

Keep it running.

Hosting, monitoring, security updates, and ongoing improvements after launch, with a monthly report on uptime, usage, and what we shipped.

03 / Launch and support

Our full range of services

From first idea
to software your team relies on.

Strategy, design, engineering, and support. Bring us a single project or build a long-term product roadmap with us.

01

Web apps

Internal tools and customer-facing platforms.

  • Custom business web applications
  • Customer and client portals
  • Internal dashboards and admin tools
  • Booking, quoting, and ordering systems
  • Workflow and approval automation
  • Replacing spreadsheets and manual processes
  • SaaS products and MVPs
  • Role-based access and user management
02

Mobile apps

On your customers’ and team’s phones.

  • iOS and Android apps
  • Cross-platform apps (React Native)
  • Field service and team apps
  • Loyalty and membership apps
  • Push notifications and offline mode
  • In-app payments and subscriptions
  • App Store and Google Play launch
  • App redesigns and rebuilds
03

Websites

A home that matches the business.

  • Business website design and development
  • High-converting landing pages
  • Website redesigns and migrations
  • E-commerce and Shopify builds
  • CMS setup so your team can edit
  • Lead capture and inquiry forms
  • Technical SEO foundations
  • Speed, accessibility, and mobile
04

Integrations & support

Connected systems. Fewer surprises.

  • CRM, ERP, and accounting integrations
  • Stripe and payment processing
  • APIs and third-party connections
  • AI features and assistants
  • Cloud hosting and infrastructure
  • Security, backups, and monitoring
  • Analytics and usage tracking
  • Ongoing maintenance and improvements

These are our available services, not a single package. coello.dev Build has a defined, fixed-price scope. Hosting, third-party licenses, app store fees, and work outside the agreed scope are quoted separately before we start.

How we work together

Your operation.
Our engineering and follow-through.

01 — CHECK THE FIT

Start with 20 minutes.

We discuss the problem, your users, and your current systems. You’ll know whether custom software makes sense before spending a dollar.

02 — SCOPE IT PROPERLY

A two-week discovery sprint.

We map workflows, design key screens, and agree on a fixed price and timeline. You keep the blueprint either way.

03 — BUILD IN THE OPEN

Demo. Approve. Launch.

A demo every two weeks, a shared project board, and a launch plan. You always know what’s done, what’s next, and what it costs.

A fixed-price project

Know exactly
what you’re paying for.

For one app or website, one agreed scope, and one fixed price. No hourly billing surprises, no open-ended invoices.

Typical builds run 8–16 weeks. Larger platforms are scoped in phases, each with its own fixed price. Most clients continue on a monthly support plan after launch.

coello.dev BuildDone for you
$25k USD starting

Fixed price agreed after discovery. Applicable taxes are additional.

  • Two-week discovery sprint and clickable prototype
  • Custom UI/UX design for web, iOS, or Android
  • Senior engineers and a dedicated project lead
  • Demo every two weeks; launch after your approval
  • 90 days of post-launch fixes included
Book a 20-minute call

Discovery is billed separately and credited toward your build. Payments are milestone-based. You own the code and accounts from day one.

Before we talk

Clear answers.
Realistic expectations.

Why not just use an off-the-shelf tool?

Often you should, and we’ll tell you if so. Custom software makes sense when your process is a competitive advantage, when you’re paying for five tools that don’t talk to each other, or when per-seat fees keep climbing.

How much time do you need from me?

Plan for a few hours during discovery, then a 30-minute demo every two weeks and quick answers on our shared project channel. One decision-maker on your side keeps everything moving.

How do you keep the project on budget?

The price is fixed against an agreed scope. If you want to add something mid-build, we quote it before doing it, and you decide whether to add it now, swap it for something else, or save it for phase two.

Who owns the code and the app?

You do. Code lives in your repository, apps are published under your developer accounts, and hosting runs in your cloud account. Full documentation is included at handover.

Can you work with our existing systems?

Yes. We regularly connect to CRMs, ERPs, accounting software, payment providers, and legacy databases. Discovery confirms what each integration requires before we price it.

What happens after launch?

Every build includes 90 days of fixes. After that, most clients choose a monthly support plan for hosting, security updates, monitoring, and new features, with a clear monthly report on what was shipped.

Bruno, the person behind coello.dev

Who you’ll work with

Hi, I’m Bruno.
Let’s talk about your business.

I started coello.dev to give growing businesses the kind of custom software usually reserved for companies with an in-house engineering team. The aim is simple: software that fits how you actually work, built properly and owned by you.

Our first conversation starts with your business: what’s slowing your team down, what your customers expect, and where you want to be in two years. We’ll talk through what a build could look like, agree on a clear scope, and decide whether working together makes sense.

Start with a conversation

Let’s see what software
could do for your business.

In 20 minutes, we’ll discuss your needs and outline what a first build could include.

Book a 20-minute call