Swedish software studio & tech consultancy · Halmstad

Software, engineered to last.

Helfi Systems builds apps for every screen — phone, tablet, desktop, and TV — plus SaaS platforms, AI integrations, and technical consulting. For companies and individuals who want things done properly.

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IPADOS IOS · ANDROID MACOS · WINDOWS TVOS · ANDROID TV PHONE · TABLET · DESKTOP · TV

Services

Five disciplines, one way of working: careful, transparent, and built to be maintained.

App development

Apps for every screen: iPhone and iPad, Android, Mac and Windows — and tvOS and Android TV when the product belongs in the living room. We work with each platform’s own tools, Swift and SwiftUI, Kotlin and Jetpack Compose, and take responsibility for the whole chain: architecture, development, testing, and App Store and Google Play releases.

  • iPhone & iPad
  • Android
  • Mac & Windows
  • tvOS & Android TV
  • Swift, SwiftUI, Kotlin & Compose
  • Release & launch
  • Maintenance & further development

SaaS systems

We design, build, and operate SaaS platforms — from data model and API to admin interfaces and customer portals. Systems are built to be scaled, monitored, and extended, with unambiguous ownership: the code and the infrastructure are yours.

  • System design & architecture
  • Web apps & APIs
  • Operations, monitoring & backups
  • Maintenance & further development

AI integrations

AI that earns its place in the product or the workflow — not a demo. We integrate language models and build automations with security, quality, and cost control in focus. And we say honestly when AI is the wrong tool.

  • LLM integrations
  • AI agents & automation
  • Evaluation & quality assurance
  • Cost control

Personal apps

An app built for exactly one person: you. Some ideas fit no mass market — the training log that works the way you train, the tool for your collection, your farm, your project. We build apps to private individuals' own specifications, with the same care as our business engagements.

  • To your specification
  • From idea to App Store or home screen
  • Written proposal before we start
  • Discretion as a given

Advisory

Technical advisory, assessments, and decision support. A second opinion before a big decision, a review of an existing codebase, or help choosing between native and cross-platform. Concrete, in writing, and with no sales agenda.

  • Technical review
  • Code review
  • Architecture & technology choices
  • A second opinion

A backend — only when it’s needed

A common question in client conversations is about servers: is a backend needed, what does it cost to run, and who looks after it? Our answer starts at the other end: not every app needs a server.

When the app stands on its own.

Many apps are best off living entirely on the phone: your data stays on the device, the app works without a connection, and there are no monthly server costs. We build them to scale where you need and meet the requirements that apply — with export, import, and backup built in from the start.

When it doesn’t.

When the product does require a backend, we take responsibility for all of it: design, setup, operations, monitoring, and maintenance — and we’re straight about the running costs before you decide, not after.

We take care of the rest.

Domains, hosting, accounts, certificates, App Store and Google Play registrations: we purchase, set up, and manage what’s needed around the product — in your name, so all of it is yours.

How we work

The same way of working whether the engagement is an app, a platform, or an assessment.

  1. The first conversation.

    A free conversation about what you want to achieve. No slide decks — just questions, and honest answers about what's realistic.

  2. The proposal.

    You get a written proposal with scope, timeline, and price. Clear enough to decide on, honest enough to hold.

  3. The build.

    Short iterations and runnable versions. You see progress every week — not a surprise at the end.

  4. The handover.

    The code is yours: documented, tested, and ready to be maintained — by us or by anyone else. No lock-in.

What “engineered to last” means

Native first.
We build with each platform's own tools when that gives the best result — and say clearly when it doesn't.
You own everything.
Source code, accounts, and infrastructure are in your name from day one.
Security and privacy by default.
Minimal data collection and safe defaults. The same principle as this website: no cookies, no tracking.
Accessibility, properly.
Interfaces that work for more people. WCAG is our floor, not our ambition.
Built for the next developer.
Tested, documented, and free of shortcuts that become debt. Quality is paid once — at build time.

Pricing

Clarity before the start is part of the craft. After the free first conversation you get a written proposal with fixed scope and fixed price — no open-ended invoices.

Personal app

from €4,900 incl. VAT

An app that lives entirely on your phone — no server, no monthly costs — built to your specification, with export, import, and backup built in.

Company app

from €9,900 excl. VAT · starting price

A complete app for your business, built to your specification. The starting price covers a simpler app without a heavy server side — if the product needs login, cloud services, or a full backend, it belongs in the next tier.

Platform & backend

On request written proposal per engagement

When the product needs a complete backend, login, AI integration, and ongoing operations, we price it per engagement. You get a written proposal with scope, timeline, and running costs stated — before you decide.

What drives the price: scope, number of platforms, and whether the product needs a backend.

Company

Helfi Systems AB is a Swedish limited company (aktiebolag) registered in Halmstad. We build software — mobile apps, SaaS systems, and AI integrations — for companies and private individuals who value quality, transparency, and longevity.

Halmstad · 56.67° N, 12.86° E

These details can be verified in the register of the Swedish Companies Registration Office — Bolagsverket.

Frequently asked questions

What does it cost?

The honest answer: it depends on the scope. After the first conversation you get a written proposal with a clear scope and price, so the decision is made on facts — not on rolling surprises.

Do you only work in Halmstad?

No. We work with clients across Sweden and internationally. Remote is our normal mode; meetings happen over video, or on site when it matters.

Who owns the code?

You do. Source code, accounts, and infrastructure are registered in your name from the start, and handover is part of every engagement.

Do you really build apps for private individuals?

Yes. Same process, same quality, same ownership — just a different client. Tell us what you want, and we'll tell you what it takes.

Can you take over an existing app or codebase?

Yes. We start with a technical review that gives you a written picture of the state, the risks, and the way forward — then you decide whether we take it from there.

How do you handle AI and our data?

With the same seriousness as any other data processing: minimal data, clear agreements, and vendors that meet European requirements. AI integrations are designed so your data never becomes someone else's training material.

Contact

Tell us what you want to build. We reply within two working days.

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