Mobile Apps
We build native and cross-platform mobile apps that combine exceptional performance with intuitive, memorable user experiences.
Mobile as a strategic channel
With more than 70% of digital traffic coming from mobile devices, having a quality app is no longer a differentiator, it is a necessity. At Sparksoft, we build apps that go beyond basic functionality.
From concept to store launch, our team makes sure every app is optimised for performance, usability and user retention. We work with the most modern technologies to deliver apps that stand out in an increasingly competitive market.
We analyse user behaviour, design interfaces that follow each platform’s native guidelines and implement features that keep users engaged: smart notifications, offline sync and integrations with the device’s native services.
The decision with the largest effect on an app budget is the first one: native or cross-platform. React Native covers most business cases with a single codebase for iOS and Android and half the maintenance cost; native earns its price when the app leans heavily on device hardware or on graphics-intensive work. We recommend one of the two once we know what the app has to do, not before.
Our team is in Porto, Portugal, and we work remote-first with companies across the EU, the UK and Ireland, in the same time zone as our UK and Irish clients. Most of the mobile apps we build do not live in isolation: they connect to systems that already exist, which is why we also build the backend and integrations the app depends on.
Mobile solutions
From idea to App Store, we cover the whole journey.
Cross-platform
React Native apps that run on iOS and Android from a single codebase, cutting costs by up to 40% compared with building twice natively. The same native look and feel on both platforms.
Native performance
When performance is critical, we build native components optimised to get the most out of each platform: camera, GPS, sensors and smooth 60fps animations.
Mobile UX/UI
Interface design that follows each platform’s guidelines (Material Design and Human Interface Guidelines), delivering a familiar, intuitive experience for users.
Backend & APIs
Robust backend infrastructure with APIs tuned for mobile, push notifications, offline sync and efficient data handling on slow networks.
From idea to launch
A structured process to turn your vision into a successful app.
Concept & validation
We assess the viability of your idea, study the competition and define the MVP: the smallest set of features needed to validate the market quickly.
Design & prototype
We build interactive prototypes that simulate the real app experience. We test with real users before writing a single line of code.
Development & launch
Agile sprints with regular test builds. We see store publication through, optimise ASO and monitor the app after launch.
What sets our mobile work apart
Full-stack team
Designers, mobile developers and backend engineers in one integrated team, with no external dependencies. Direct communication and fast decisions.
Thoroughly tested
Automated tests and rigorous QA on real devices before every store launch. Zero surprises on launch day.
Launch support
We see store publication through, optimise ASO, monitor crashes and watch analytics post-launch for continuous improvement.
Mobile app development: frequently asked questions
The questions that always come up before building an app.
Native or cross-platform mobile apps?
Cross-platform with React Native covers most business cases: one codebase for iOS and Android, half the maintenance cost, and performance indistinguishable from native for management apps, marketplaces or customer portals. Native earns its cost when the app depends heavily on device hardware or on graphics-intensive work. We recommend one of the two once we know what the app has to do.
How much does it cost to build a mobile app?
We publish no prices because an app is dominated by what you do not see on screen: authentication, offline sync, notifications, and integration with the systems you already run. We establish that scope in a Discovery of one to two weeks and propose from real context.
Does a mobile app need a backend?
Almost always. User accounts, data shared across devices, notifications, or any connection to your internal systems all require a server and an API. We build both halves — app and backend — which avoids the classic problem of two suppliers arguing over whose fault a failure is.
Do you handle App Store and Google Play submission?
Yes, store submission is part of the launch phase. We prepare the listings, the visual assets and compliance with each store policy, and see the review process through until the app is live.
What happens after launch?
Apps do not stand still: iOS and Android ship new versions every year, and an unmaintained app stops working on its own. We stay available for evolutive maintenance and for acting on what usage data shows about the next priorities.
Have an idea for an app?
We turn your vision into a real application. Get in touch to talk through your mobile project.