Custom Mobile App Development iOS & Android – shipping within weeks, not months

Whether you are validating an MVP or scaling a full product, our dedicated mobile development team builds iOS and Android apps that perform flawlessly, look exceptional, and launch on schedule.

Clients globally
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Hours delivered
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Trustpilot rated
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Clients globally
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Hours delivered
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Trustpilot rated
0
Average onboarding
0 h

Trusted by clients across the globe.

Trusted by clients across the globe.

Webermelon Reviews

55+ clients across the globe trust us as their long-term development partner for scalable, dependable solutions.

Reviews From

Eric Zuley

CEO eZWay Network

We have worked with Webermelon now for close to a year and they have exceeded our expectations in all categories. We know we can always depend on them.

Florian

ManRoof GmbH

manroof

I’ve been working already many times with Webermelon on different web projects. Fully customized PDF generating application, WordPress websites and customization. The work was always professional and very satisfying and on time. Looking forward to work on new projects again. Thanks!

What We Build

Custom Mobile App Development Across Every Major Platform

From cross-platform consumer apps to complex enterprise mobile solutions – our teams build mobile experiences that users actually want to keep on their phones.

Cross-Platform App Development

One codebase. Two platforms. We build high-performance React Native and Flutter apps that deliver a truly native feel on both iOS and Android – without doubling your development cost or timeline.

Native iOS Development

When platform-specific performance and access to the full Apple ecosystem matter, we build native Swift applications – optimised for the latest iOS frameworks and App Store standards.

Native Android Development

Native Android apps built with Kotlin – leveraging the full Android SDK, Material Design 3 guidelines, and Google Play requirements for performance and compliance.

MVP App Development

Validate your idea fast. We scope, design, and build focused mobile MVPs that get to market in weeks – with just enough features to prove your concept and attract your first real users.

API Integration & Backend Connectivity

We connect your mobile app to existing backends, third-party APIs, and cloud services – handling authentication, real-time data sync, push notifications, and offline-first architecture.

App Maintenance & Iteration

Launching is just the beginning. We provide structured post-launch support – OS updates, performance monitoring, crash fixing, feature iterations, and App Store management – so your app stays healthy.

CASE STUDIES

Here is our most successful case studies

Cluu – UI/UX Design Agency Website

Cluu is a UI/UX design agency that has provided us with their new website plan, where they aim to implement advanced animations and showcase their projects in an appealing way.

Why Webermelon

A Custom Mobile App Development Partner That Thinks Beyond the Build

UX-First Engineering

Every mobile app we build starts with the user experience, not the tech stack. Our designers and developers work in lockstep so the interface and the underlying architecture are designed together – never at odds.

Cross-Platform Without Compromise

We do not treat React Native or Flutter as shortcuts. We build cross-platform apps with platform-specific UI patterns, gesture handling, and performance optimisation – so users cannot tell it is not native.

Scalable Architecture from Day One

We build mobile apps with production-scale architecture baked in – clean state management, modular component structures, and API layers designed to handle growth without painful rewrites six months later.

App Store Submission Handled

We manage the full App Store and Google Play submission process – certificates, provisioning profiles, metadata, screenshots, and review compliance – so you never get caught by a preventable rejection.

Transparent Delivery, Every Sprint

Daily async updates and weekly sprint demos keep you fully informed. You see working software at the end of every sprint cycle – not just a status report.

How It Works

How We Deliver Your Custom Mobile App

A structured, transparent process – from your first brief to your App Store listing – with no guesswork at any stage.

Engagement Models

Choose the Right Model
for Your App

MVP Sprint

A focused, time-boxed engagement to build and ship your core mobile app features – designed to get you to market fast, gather real user feedback, and prove product-market fit.

Dedicated App Team (Most Popular)

A complete mobile development team – iOS/Android engineer, UX designer, and QA – working as a cohesive unit on your product from discovery through to launch and beyond.

Managed Project

Hand us your brief and we take full ownership – UX, architecture, development, testing, and submission – with clear milestones, fixed pricing, and a single point of accountability.

Tools we use

A Team Skilled Across the Entire Modern Stack

Our dedicated development teams are specialists — not generalists. Every developer is vetted across their domain so you get real expertise, not a jack-of-all-trades.

Figma

Top notch web design meets business growth and make brand upgrade.

What Clients Say

Nico Oesch

Coople (Schweiz) AG

On Coople we worked with webermelon on our new website. They implemented great designs and we were always happy with the service. Quality, quick reaction time and timely delivery what makes webermelon stand out. Definitely going to work with them in the future.

Florian

ManRoof GmbH

I’ve been working already many times with Webermelon on different web projects. Fully customized PDF generating application, WordPress websites and customization. The work was always professional and very satisfying and on time. Looking forward to work on new projects again. Thanks!

Vilem Arbeit

CEO - SHARKANI

"Professional team of developers. We've been working with Webermelon on two custom projects and they delivered very satisfying results for a very reasonable price. Any glitches found were always fixed almost immediately at no extra cost."

Need more info?

Frequently Asked
Questions

Everything you need to know about our custom mobile app development service before you get started.

1. How long does custom mobile app development take?

A focused MVP typically takes 8 to 12 weeks from signed brief to App Store submission. A full-featured product with complex integrations generally runs 16 to 24 weeks. We provide a detailed project timeline during the scoping phase so you have certainty before committing.

It depends on your priorities. Cross-platform (React Native or Flutter) covers both iOS and Android from one codebase – faster and more cost-effective for most products. Native Swift or Kotlin is better when you need deep platform integration, maximum performance, or access to hardware-specific features. We advise on the right choice during discovery.

Yes, fully. We manage certificates, provisioning profiles, metadata, screenshots, privacy policy requirements, and the review submission process for both the Apple App Store and Google Play Store. We also handle any review rejections and resubmissions.

Yes. We regularly build the full stack – mobile frontend and backend API – as a single engagement. We can also integrate with your existing backend if one already exists. Our backend engineers work in Node.js, Laravel, and Firebase depending on your requirements.

Design starts before development. Our UX team produces wireframes, then high-fidelity Figma prototypes covering all key screens and user flows. You review, test, and approve the complete experience interactively before any code is written – eliminating expensive redesigns mid-build.

Yes. We offer structured post-launch support covering OS version compatibility updates, crash monitoring and resolution, performance improvements, and new feature sprints. Support is available on a monthly retainer or on a per-sprint basis depending on your needs.

Yes. We do this regularly. We conduct a thorough technical audit of the existing codebase, document findings, and produce a clear remediation plan before any new development begins. This ensures we understand exactly what we are working with and set honest expectations from the start.

Yes. All team members sign NDAs before joining any client project, and we sign client-specific confidentiality agreements covering IP ownership, source code, and any proprietary business logic. You retain full ownership of all code and assets delivered.

Ready to Build Your Custom Mobile App?

Tell us about your app idea. We will scope it, advise on the right platform, and have your team ready to start within 48 hours – no lengthy back-and-forth, no surprises.