Schedule a Free Discovery Call — Discuss your project with our senior engineering team today.Get Started
Mobile App Development

Mobile Apps People Actually Want to Use

Users know what good feels like and abandon slow or confusing apps in seconds. We build native iOS and Android and cross-platform apps that perform well, feel right, and hold up under real-world use.

9:41
Continue
Mobile App Development
Live
4.7★Average store rating across shipped apps
iOS +Android native & cross-platform expertise
60fpsPerformance budgets built into delivery

Overview

Mobile is a product problem as much as a technical one

A mobile app lives on the most personal, most scrutinised screen your customer owns. Expectations are set by the best apps they use every day, and the gap between 'works' and 'feels great' is where retention is won or lost. Getting mobile right means treating engineering, design and product as one discipline — which is exactly how our team is structured.

We build native where the platform experience matters most, using Swift and SwiftUI on iOS and Kotlin with Jetpack on Android, and reach for React Native or Flutter when a shared codebase is the pragmatic choice for speed and budget. We help you make that call honestly, based on your users and roadmap rather than a fixed preference.

Beyond the build, we handle the things that quietly decide whether an app succeeds: offline behaviour, push notifications, deep linking, analytics, crash reporting, and the App Store and Play Store submission process. We have shipped apps to both stores and know how to get through review the first time.

What you get
  • Native and cross-platform, chosen for your users — not our habits
  • Offline-first, push, deep linking and analytics handled properly
  • App Store and Play Store submission managed end to end
Security & ownership built in from day one

Capabilities

What we build

From a first launch to a mature app with millions of sessions, we cover native, cross-platform and the supporting back end.

Native iOS

Swift and SwiftUI apps that follow Apple's design language and feel at home on every iPhone and iPad.

Native Android

Kotlin and Jetpack Compose apps built for the diversity of the Android device ecosystem.

Cross-platform

React Native and Flutter apps that share a codebase across iOS and Android without feeling generic.

Mobile back ends

APIs, authentication, real-time sync and the cloud infrastructure your app depends on.

Engagement systems

Push notifications, deep linking and in-app messaging that bring users back for the right reasons.

Analytics & quality

Crash reporting, performance monitoring and product analytics so you improve on evidence, not guesses.

Our Process

How we deliver

  1. 01

    Discovery & product shaping

    We pressure-test the idea, define the core flows and agree what the first release must nail.

  2. 02

    UX & prototype

    Interactive prototypes so you feel the app before we build it, reducing costly rework.

  3. 03

    Sprint-based build

    Two-week cycles delivering usable builds to your device for real feedback.

  4. 04

    Device & release testing

    Testing across real devices and OS versions before store submission.

  5. 05

    Store submission

    We manage App Store and Play Store review, listings and phased rollout.

  6. 06

    Post-launch iteration

    Monitoring, updates and roadmap work informed by real usage data.

Why Nidavellir

Why teams choose us for mobile

Design and engineering as one team

We do not throw specs over a wall. Product, design and code stay in the same conversation.

The right platform decision

We recommend native or cross-platform based on your users and budget, not a fixed agenda.

Shipped and reviewed apps

We have been through store review, ratings and update cycles — not just the build phase.

Performance as a requirement

Smooth scrolling, fast startup and small binaries are goals we design toward, not afterthoughts.

Technology

Technologies we work with

iOS
SwiftSwiftUIUIKitCombine
Android
KotlinJetpack ComposeCoroutines
Cross-platform
React NativeFlutterExpo
Back end
Node.jsFirebaseSupabaseGraphQLREST
Let's build

Let's talk about your mobile app development project

Book a free discovery call with our senior team. We'll discuss your goals, constraints and the fastest honest path to a result — no obligation.

Get Started

FAQ

Frequently Asked Questions

It depends on your users, feature set and budget. Native (Swift/Kotlin) gives the best performance and platform feel and is worth it for demanding or long-lived apps. Cross-platform (React Native, Flutter) shares one codebase across both platforms and is often the pragmatic choice for speed and cost. We help you decide honestly based on your specific case.