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NestedPie

Custom Mobile App Development

iOS and Android apps built around your business, from first idea to App Store launch and beyond.

  • Reply within 24 hours
  • NDA before we talk
  • You own 100% of the IP

Off-the-shelf apps force your business to fit their workflow. A custom mobile app does the opposite: it is designed around your customers, your operations and the way you want to grow. We design, build and launch iOS and Android apps for startups and established businesses worldwide.

Most of our apps are built with Flutter, so one codebase runs natively on both iPhone and Android. That means a faster launch, lower cost and consistent quality on every device. Every app comes with the back end, API and admin panel it needs to run your business day to day.

What we deliver

iOS and Android apps

Cross-platform Flutter apps with native performance, or fully native builds when your project needs them.

Back end and API

Secure, scalable server-side systems (Laravel or Node.js) that power your app and store your data.

Admin panel

A web dashboard for your team to manage users, content, orders, bookings and payments without a developer.

UI/UX design

User research, wireframes and polished interface design that make your app easy and enjoyable to use.

Integrations

Payments, maps, identity verification, push notifications, SMS, email and third-party APIs.

Launch and support

App Store and Google Play submission, monitoring, updates and new features after launch.

How we work

  1. 01

    Discovery

    We map your users, goals and core journey, and agree the scope for your first release.

  2. 02

    Design

    Wireframes and a clickable prototype you can test before any code is written.

  3. 03

    Development

    Agile sprints with demos every 1–2 weeks, so you see progress and steer early.

  4. 04

    Testing

    Testing on real iOS and Android devices, plus a beta with early users.

  5. 05

    Launch and grow

    Store submission, analytics, then ongoing improvements based on real usage.

Technologies we use

  • Flutter
  • Dart
  • Swift
  • Kotlin
  • Laravel
  • Node.js
  • Firebase
  • MySQL
  • PostgreSQL
  • AWS

Why NestedPie

  • UK-registered company (No. 17469643) with a UK contract and UK point of contact
  • One team for design, mobile, back end, admin panel and testing
  • We sign an NDA before we talk and you own 100% of the code and IP
  • Projects scoped to your budget, from a focused MVP to a full platform

Pricing

There is no fixed minimum. Cost depends on features, platforms and integrations. A focused MVP is the most affordable way to start, and we provide a clear estimate after a free consultation.

Request an estimate

Related case studies

Enterprise Solution

Car Rental & Fleet Management Platform

Go2Cars Australia

An end-to-end platform that runs Go2Cars Australia's car rental business from one place: an admin web panel for the operations team, a customer web portal, and a Flutter mobile app that takes customers from booking to return without paperwork.

  • Laravel
  • MySQL
  • Flutter
Read case study
Enterprise SaaS

White-Label Restaurant Ordering SaaS

LetMenu

We built LetMenu's SaaS platform end to end. It gives restaurants their own branded ordering system (a mobile app, a web ordering site and a management dashboard) so they can sell direct instead of paying 15–30% commission to marketplaces.

  • Laravel
  • MySQL
  • Flutter
Read case study

Mobile App Development FAQs

How much does custom mobile app development cost?

It depends on the features, platforms and integrations you need. We scope every project to fit your budget, from a focused MVP to a full platform, and give you a clear estimate after a free consultation.

Do you build for both iOS and Android?

Yes. We usually build with Flutter, so one codebase runs natively on both iPhone and Android. We also build fully native apps when a project needs it.

How long does it take to build a mobile app?

A focused MVP often takes 6–12 weeks. A business app with a back end and admin panel typically takes 3–5 months, and larger platforms take longer.

Will I own the app and source code?

Yes. All code, designs and intellectual property belong to you, and we sign an NDA before discussing your idea.

Helpful guides

Tell us about your project

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