Bringing
App Ideas
to life

Bringing
App Ideas
to life

Bringing
App Ideas
to life

iOS, Android and web app developer. Design, build and launch.

20+ apps shipped · iOS, Android and web

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App Store

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Google Play

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App Store rating

4.8

Build 1.0 (42) · Ready for review

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Pro plan

£4.99 / month

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Daily goal

75% complete

Andy Dobson, freelance app developer

TOP 3% TALENT

Vetted byHire me

About

Hi, I’m Andy.

I’m a senior app developer based in Hertfordshire. I design, build and launch iOS, Android and web apps for founders, agencies and growing businesses: 20+ shipped so far, with over 100k downloads between them.

I’m a founder too. My own apps make £10k a month, so I build every project like it’s my own money: a lean scope, solid foundations and a launch date that holds.

You work directly with me from the first call to the App Store, with no account managers and no hand-offs. I’m also vetted as top 3% talent on Toptal.

How it works

From idea to App Store in four steps.

01

Scope

We agree what V1 needs to do, what it doesn’t, and what it costs. You get a fixed quote before anything is built.

02

Design

Key screens and user flows are designed and approved, so you can see how the app works before development starts.

03

Build

Built in focused sprints, with a working build on your phone at every milestone and one developer accountable for delivery.

04

Launch

Tested, submitted to the App Store and Google Play, and handed over. You own the code, the accounts and the documentation.

For funded founders

Raised a round? Get your V1 built in a fixed-scope sprint.

Fixed scope, milestone payments and one senior developer from scope to launch. Sprints from £15k.

Services

Mobile App Development


Custom iOS and Android apps built with React Native and Expo. I deliver sleek, high-performance mobile experiences tailored to your users and business goals.

Backend Architecture & APIs

Robust backend systems using Node.js, Laravel, or Java — including REST/GraphQL APIs, authentication, database design, and third-party integrations.

App Store & Subscription Setup

Complete setup and submission for App Store & Google Play. Includes in-app purchases, RevenueCat or Stripe integration, and subscription logic.

End-to-End Project Delivery

From idea to deployment — I handle full-stack development, project scoping, and delivery with clean code, clear communication, and long-term maintainability.

AI Integration & LLM Features

ChatGPT-powered features, custom classifiers, RAG pipelines, and agent workflows. I integrate OpenAI, Anthropic, and OpenRouter models into mobile and web apps — with prompt engineering, streaming, caching, and cost control.

Services

Mobile App Development


Custom iOS and Android apps built with React Native and Expo. I deliver sleek, high-performance mobile experiences tailored to your users and business goals.

Backend Architecture & APIs

Robust backend systems using Node.js, Laravel, or Java — including REST/GraphQL APIs, authentication, database design, and third-party integrations.

App Store & Subscription Setup

Complete setup and submission for App Store & Google Play. Includes in-app purchases, RevenueCat or Stripe integration, and subscription logic.

End-to-End Project Delivery

From idea to deployment — I handle full-stack development, project scoping, and delivery with clean code, clear communication, and long-term maintainability.

AI Integration & LLM Features

ChatGPT-powered features, custom classifiers, RAG pipelines, and agent workflows. I integrate OpenAI, Anthropic, and OpenRouter models into mobile and web apps — with prompt engineering, streaming, caching, and cost control.

Services

Mobile App Development


Custom iOS and Android apps built with React Native and Expo. I deliver sleek, high-performance mobile experiences tailored to your users and business goals.

Backend Architecture & APIs

Robust backend systems using Node.js, Laravel, or Java — including REST/GraphQL APIs, authentication, database design, and third-party integrations.

App Store & Subscription Setup

Complete setup and submission for App Store & Google Play. Includes in-app purchases, RevenueCat or Stripe integration, and subscription logic.

End-to-End Project Delivery

From idea to deployment — I handle full-stack development, project scoping, and delivery with clean code, clear communication, and long-term maintainability.

AI Integration & LLM Features

ChatGPT-powered features, custom classifiers, RAG pipelines, and agent workflows. I integrate OpenAI, Anthropic, and OpenRouter models into mobile and web apps — with prompt engineering, streaming, caching, and cost control.

Frequently asked questions

How much does it cost to build an app?

The cost depends on the complexity of your app — features, platforms, and backend requirements. After an initial discussion, I’ll provide a clear quote and timeline based on your specific needs.

How long does it take to build an app?

It depends on the complexity of the app, for a simple app that doesnt communicate with any backend services, it could take a couple of weeks. For anything more complex, it could take between 3-6 months

Can you work with an existing app or codebase?

Yes. I’m happy to jump into an existing project — whether it’s improving performance, fixing bugs, or adding new features. I’ll start with a quick audit to understand the code quality and scope.

Do you handle publishing to the App Store and Google Play?

Absolutely. I manage the full deployment process, including store setup, certificates, screenshots, and compliance requirements to ensure your app is ready to launch.

Do you work with clients across Hertfordshire?

Yes. I’m a Hertfordshire-based app developer working with agencies, founders and teams across St Albans, Watford, Hemel Hempstead, Stevenage and the wider UK. Most projects run remotely, with in-person meetings available across Hertfordshire when it helps.

Got an app idea? Let’s build it.

Tell me where your product is today and what needs to happen next. You’ll leave the call with a clear plan, timeline and next steps.