Services
Mobile app development
Sofokus designs, builds, and maintains mobile apps with solid experience. The same team also handles backend systems, integrations, and maintenance, so the app connects seamlessly to the technical architecture.
Waltti Solutions
The Waltti ecosystem at the heart of a nationwide public transport solution
“From our perspective, new digital services and sales channel solutions are essential for success. We believe that collaboration with Sofokus will enable us to build the best possible service offering”
WHAT WE HELP YOU SOLVE
Typical challenges
We approach even the most technical assignment as a business development project. First, we clarify the need and goals, and only then do we choose the implementation approach and technologies.
There are plenty of ideas, but the implementation approach is open
We help you choose a native, hybrid, or web app based on the need, budget, and lifecycle costs.
We need both an iOS and an Android app
We build both cross-platform apps on a single codebase and native implementations for each platform, depending on the use case.
The app doesn’t talk to backend systems
We integrate the app with existing systems and APIs so that data moves automatically.
The app stores feel complicated
We take care of releases and their requirements for you — including when Apple or Google requires a mandatory update to an app already in use.
The app isn’t accessible
An app has to meet accessibility requirements so that everyone can use it. We consider accessibility from design through implementation and make sure the app meets the requirements set for it.
You’re unsure about further development or renewal
As a long-term development partner, we handle maintenance and move the app forward based on usage data. When an app reaches the end of its lifecycle, we renew it in phases and migrate its features to a new implementation in a controlled way.
OUR MOBILE APP DEVELOPMENT EXPERTISE
Sofokus has broad experience in app projects
We’ve done software and app development since 2000, and our experts have an average of 14 years of experience. Our NPS of 88, a measure of customer satisfaction, is among the top in the industry and reflects the quality of our work. Our expertise covers native iOS and Android apps as well as web apps, progressive web apps, and cross-platform development. We’re also capable of large-scale builds: for example, we’ve continuously developed Waltti Solutions’ nationwide service and its apps over many years. In all, Sofokus people have taken part in more than 50 mobile development projects.
Our mobile app development expertise grew further in June 2026, when Sofokus acquired Punos Mobile’s business and several experts specializing in native mobile development and AI applications joined our team. Read about the deal in the press release.
Implementation Approaches
Native, hybrid, or web app?
The implementation approach affects the app's performance, cost, and maintenance. We go through the options together and choose the one that best fits your needs.
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Native app
Makes full use of the device’s capabilities. Suited to cases where performance, offline use, or device integrations are central. Covers iOS and Android apps. For native development, we use the platforms’ own languages: Swift (iOS) and Kotlin (Android).
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Web app and progressive web app
They run in the browser without installation and often reach users the fastest. A progressive web app can be added to the phone’s home screen and works partly offline, like an installed app.
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Hybrid and cross-platform implementation
Shares a single codebase across platforms and sits between native and web apps in cost and features. The most common cross-platform technologies are React Native and Flutter. We help with the choice by comparing the options from the perspective of need and lifecycle costs.
AI-assisted app development
AI-assisted app and software development means using AI tools in, for example, code generation, review, testing, and documentation. AI speeds up routine steps, but the developer directs the work and is always responsible for the quality of the result. Recently, native development in particular has become more common again, as AI has made it more cost-effective than before.
Sofokus applies AI-assisted methods with judgment: people are responsible for architecture, security, and quality assurance. You can find a more detailed description of AI-assisted software development in our AI glossary.
HOW THE WORK PROCEEDS
From mapping needs to continuous development
- Assessment of the current state and needs. We clarify the use case, users, and goals.
- Goals and roadmap. We choose the implementation approach and schedule the phases.
- Specification and design. We design the user interface and user experience.
- Phased implementation. We build the app and integrations and test along the way.
- Launch, maintenance, and further development. We release the app, track the agreed metrics, and develop it based on usage data.
PERSPECTIVES ON digitalisation
Further reading to support your app project
What does digital development take in the age of AI? Three capabilities that matter more than coding
AI has closed much of the gap between big companies and small ones, and success in digital development no longer comes down to who writes the most code. This article covers the three capabilities that now decide the outcome: defining clearly before you build, steering AI with a practical handbook, and coordinating a project across several suppliers.
Vibe coding: a threat or an opportunity?
Vibe coding means producing software with AI without reviewing the source code. It's a new software development model worth taking seriously — but only when applied correctly. This article looks at where vibe coding fits and where it earns a place even in a professional's toolkit.
Custom application development
When off-the-shelf software doesn't meet your needs, or you're after a real competitive edge through digitalisation, custom software development may be the best fit for you. Software built around your specific needs makes your business more efficient, streamlines operations, and scales flexibly as you grow.
Questions about app projects
Both. We choose the implementation approach based on the use case and go through the options together.
The price depends on scope, platforms, and integrations. We map the needs with you and put together as accurate an effort estimate as possible.
The schedule is firmed up during specification. We work in phases, so a first working version is often ready quite quickly.
Yes. We familiarize ourselves with the current implementation and either continue development or renew the app in phases.
A native app supports offline use. We assess the need as part of choosing the implementation approach.
Yes. We build AI features into apps and use AI-assisted methods in development.
We maintain the app, monitor usage, and continue development as a partner.
Get in touch
Tell us about your needs and goals, and let’s talk more. We’ll go through your organization’s situation and assess together where to start.