HM Digital product studio

From idea to product in production.

We design, build and run apps, web platforms and internal systems. We do it for our own products and for our clients’, to the same standard.

New Living cockpit with portfolio occupancy, operational indicators and ongoing tasks
Type
Client project
Platform
Web (desktop)
Stack
React · TypeScript · Supabase · PostgreSQL
Status
In use since 2026
See the case: New Living
products in production
3
algorithmically generated cases
150+
languages in one app
4
test coverage
93%

Work

Products that are live.

Three projects with different problems, audiences and scale. What they share: we conceived, built and launched them.

01 Client project · Back office

New Living

The management system for a family real estate portfolio: properties, leases, rents, documents, insurance and tasks in one place, instead of spreadsheets and email.

  • 15+ modules
  • Bank statements and land registry records imported from PDF
  • Bookings synced with Airbnb and Booking
Type
Client project
Platform
Web (desktop)
Stack
React · TypeScript · Supabase · PostgreSQL
Status
In use since 2026
See the case: New Living

02 Own product · Mobile and web app

Agapone

A self-knowledge app that combines 7 personality systems and finds compatible people based on who each person really is.

  • 7 systems, 22 dimensions
  • 4 languages
  • Android and web
Type
Own product
Platform
Android and web
Stack
Flutter · Supabase · Stripe · RevenueCat
Status
In production
See the case: Agapone

03 Own product · Web game

Escândaloku

A deduction game in Portuguese, with cases inspired by the scandals that make the news. Every case comes from an engine that guarantees a single solution.

  • 150+ cases across 5 files
  • Boards from 5×5 to 10×10
  • In Portuguese and English
Type
Own product
Platform
Desktop and mobile web
Stack
React · TypeScript · Procedural generator · PWA
Status
Launched October 2026
See the case: Escândaloku

04 Own product · Web game

Desde Abril

A political game in Portuguese: govern Portugal from 1974 to 2026 and see how each budget changes life in the country. The effects come from published studies.

  • 52 years, from 1974 to 2026
  • 18 policies, 17 reforms from other countries and 94 sourced effects
  • Compared with up to 38 OECD countries
Type
Own product
Platform
Desktop and mobile web
Stack
JavaScript · Economic simulation · Public data · Firebase
Status
Launched October 2026
See the case: Desde Abril

Services

What we do.

  1. 01

    End-to-end digital product

    Mobile and web apps, from the first sketch to the store launch.

    • Interface design and prototypes
    • Accounts, payments and subscriptions
    • Publishing on Google Play and the App Store
  2. 02

    Back offices and internal systems

    Tools shaped around how the business works, replacing spreadsheets and email threads.

    • Per-person and per-role permissions
    • Documents, data import and reporting
    • Dashboards with the numbers that matter
  3. 03

    Growth

    A product only counts if people find it. We handle presence and measurement.

    • Technical and content SEO
    • ASO, campaigns and email marketing
    • Privacy-friendly analytics
  4. 04

    Product and market consulting

    For teams still deciding, or with a product that needs a fresh pair of eyes.

    • Idea validation and MVP scoping
    • Technology and architecture choices
    • Reviews of existing products

How we work

Short cycles, visible decisions.

We show work early and often. Nobody waits months to find out whether the product makes sense.

  1. 01

    Discovery

    We learn the business, who will use the product and what has to be ready on day one.

  2. 02

    Clickable prototype

    Before the backend, we design the interface with demo data. The product is validated by clicking, not in a document.

  3. 03

    Building in short cycles

    Frequent releases, with feedback folded in the same week and often the same day.

  4. 04

    Launch

    Stores, domain, SEO, analytics and GDPR handled as part of the product, not as extras.

  5. 05

    Run and evolve

    We stay after launch: monitoring, support, numbers and new features.

Capabilities

Technology we run in production.

Mobile
  • Flutter
  • Android
  • iOS
  • In-app purchases
Web
  • React
  • TypeScript
  • Vite
  • Pre-rendered pages
  • PWA
Backend
  • Supabase
  • PostgreSQL
  • Row Level Security
  • Edge functions
  • Cloud Functions
Payments
  • Stripe
  • RevenueCat
  • Multi-currency
  • Subscriptions
Data and privacy
  • GDPR
  • EU hosting
  • Consent
  • Cookieless analytics
Quality
  • Automated tests
  • Accessibility
  • Multiple languages
  • Continuous integration

Contact

Have a project in mind?

Tell us what you need, even if it is still just an idea. Every message gets a personal reply.

Or reach us directly