
Company
About Us
Our Vision, Mission & Culture
Our Portfolio
Work That Shipped, then Scaled
Contact us
We're a one step away from you.
Our Partner Program
We ensure Win-Win for both Parties.
Industries
Automotive
We Serve to Vehicles, EV, Fleet & CKD.
Lifestyle
Apps for social, music, fitness & on-demand platforms.
Media & Entertainment
Explore top media and entertainment companies shaping the future of content and digital entertainment.
Manufacturing
Produces goods from raw materials or components.
Adult Entertainment
Digital platforms powering streaming, subscriptions, and modern entertainment experiences.
Healthcare
System improves physical and mental well-being.
Agriculture
The tech, science, and practice cultivate AgriTech.
FinTech
For digital banking, payments, compliance, and embedded finance Apps.
Retail & E-Commerce
Sells products to customers through physical stores and online platforms.
Service
Custom Software Development
Custom Software Development
Enterprise-grade custom software for seamless integration and sustainable growth.
Legacy Application Modernization
Cloud migration, microservices, and secure refactoring to modernize legacy systems.
SaaS Application Development
Full-stack SaaS with multi-tenant architecture, AI integration, and cloud-native deployment.
Business Automation
Social Media Automation
Ship lifecycle campaigns, recover abandoned carts, and personalize every send with AI.
Email Automation Services
Ship lifecycle campaigns, recover abandoned carts, and personalize every send with AI.
Whatsapp CRM Software
Route leads, control vendor access, and close every deal on WhatsApp CRM software.
Mobile App Development
Mobile App Development Services
Trusted mobile app development company building custom Android and iOS apps.
iOS App Development
A results-driven iOS app development company building secure, scalable apps.
Android App Development
Innovative, scalable Android applications tailored to your business requirements.
Cross-Platform App Development
High-performance apps that run across iOS, Android, and web platforms.
Progressive Web App Development
Custom PWA development company engineering app-grade performance across all browsers.
MVP Development Services
Build faster, validate smarter, and scale with confidence.
Software Development
Software Integration Development
Real-time integration of enterprise apps, data systems, and 3rd-party services.
Software Development Outsourcing
Full-cycle engineering partnership from ideation to deployment and AMC.
Enterprise Software Development
MACH platforms engineered for enterprise growth and operational efficiency.
Cross Platform App Development
Flutter App Development Company
Single Dart codebase for iOS, Android, and web for Enterprise-grade.
React Native App Development
Robust mobile apps with native performance using React Native technology.
AI Development
AI Development Services
Enterprise AI solutions that enhance efficiency and data-driven growth.
Enterprise AI Product Deployment
Move AI models from prototype to production with scalable deployment.
Agentic AI Engineering Services
Production-ready AI agents built for real business needs.
Generative AI Development
Enterprise GenAI solutions using LLMs, RAG, fine-tuning, and AI agents.
AI Agent Development
Custom AI agents for intelligent automation.
AI Chatbot Development Services
Build secure, scalable AI chatbots with RAG and smart integrations.
RAG Development Services
Advanced RAG with hybrid retrieval, reranking, and agentic AI.
Hire
Mobile
Hire iOS Developer
Hire React Native Developer
Hire Xamarin Mobile App Developer
Hire Flutter Developer
AI & Data
Hire LLM Developer
Hire NPL Developer
Hire Power BI Developer
Hire AI Developer
Cloud & DevOps
Hire DevOps Developer
Full Stack
Hire React.js Developer
Hire WordPress Developer
Hire Shopify Developer
Hire MERN Stack Developer
Hire Golang Developer
Hire Rust Developer
Hire Angular Developer
Hire Strapi Developer
Blockchain
Hire Solana Developer
Hire Solidity Developer
Hire NFT Developer
Hire Web3 Developer
Insights
Blog
Trends, Technology, AI, and Industry Insights.
Listicles
Curated lists of top Apps companies in 2026
Press Releases
Latest Market News and Updates!
Junkies Coder is a mobile app development company in London, helping startups, SMEs, and enterprises turn product ideas into practical mobile experiences. We build custom iOS, Android, Flutter, and React Native applications around business objectives, customer journeys, and technical requirements.
From product discovery and UI/UX design to mobile engineering, API integration, testing, deployment, and post-launch support, we cover the complete development lifecycle. Our team can build customer-facing applications, internal business tools, marketplaces, on-demand platforms, e-commerce apps, and AI-enabled mobile products. For businesses operating in London and across the UK, we focus on creating applications that are usable, scalable, secure, and ready to evolve as product requirements change

London App Development company
iOS, Android & Cross-Platform
Empowering awards and recognition to Drive Innovation and Success with
our unparalleled expertise and commitment to excellence.
Years of experience
Countries Served
Average cost P/H
Positive Feedbacks
Projects delivered
Experts & Engineers
CORE FEATURES
From a first MVP to a mature digital product, we provide the design and engineering capabilities needed to plan, build, launch, and improve mobile applications.
Custom iOS App Development
Custom Android App Development
Flutter App Development
React Native Development
Mobile UI/UX Design
App Maintenance & Support
A structured development workflow helps turn an early concept into a tested mobile product while keeping business priorities, technical decisions, and user experience aligned.
We define the product objective, target audience, core features, technical requirements, integrations, and priorities before development begins.
We map user journeys, create wireframes, and develop the visual interface around usability, brand requirements, and important product actions.
Developers build the application using the platform or framework that fits its functionality, performance expectations, and long-term roadmap.
We connect databases, APIs, authentication, payment systems, cloud services, analytics, and other third-party tools required by the product.
The application is tested across relevant devices and scenarios before release preparation, deployment, and store submission.
After launch, we address issues, monitor performance, support platform updates, and improve the product as usage and business needs develop.
Explore selected mobile products that reflect our experience across different platforms, industries, technologies, and business requirements.

Industry
Retail & E-Commerce
Platform
Android (Native)
Location
Saudi Arabia
Outcomes
Live on Google Play
aDawliah Electronic Appliances is one of Saudi Arabia's largest specialty retailers, stocking over 6,000 products across musical instruments, professional audio, and consumer electronics. Despite strong brand recognition, the company had no dedicated mobile channel. Junkies Coder designed and engineered a full-featured Android app, bringing their entire catalog to the Saudi mobile-first consumer.

Industry
FinTech
Platform
Cross-Platform - Flutter & iOS
Location
Canada
Outcomes
Omni-Channel
Etmad Topup needed a centralized recharge system, and Junkies Coder delivered a Flutter-based omni-channel platform with a web admin panel and Node.js backend, enabling real-time transaction visibility and full operational control across Android, iOS, and web.

Industry
Artificial Intelligence
Platform
Web & Enterprise API
Location
New York, USA
Outcomes
Production Ready Runtime
Nous Research developed the Hermes model family, featuring advanced agentic reasoning and complex function calling capabilities. Junkies Coder engineered the enterprise integration runtime and secure sandbox environment for Hermes, enabling businesses to deploy autonomous software agents within secure, production ready workflows.

Industry
Ecommerce
Platform
Cross-Platform - Flutter
Location
Bengaluru, India
Outcomes
Omni-channel Platform
Inspect & Buy App build by Junkies Coder - vision is to provide a seamless, personalized shopping experience that anticipates and fulfills the needs of customers while fostering trust and loyalty through product quality and exceptional services such as Wheelz, in-store shopping and online shopping.
Whether you're looking to develop a digital solution from scratch, scale your current offerings, or fully modernize your system, we are here to help.
OUR EXPERTISE
We combine product thinking, mobile engineering, interface design, integrations, and quality assurance to create applications suited to different business models and user needs across London.
Planning a mobile product for London users? Let’s discuss your data, security, platform, integration, and compliance requirements before development begins.

Choose functionality based on how your customers use the product, how your team operates it, and what the application needs to achieve.
01
Keep users connected with your app through timely, personalized notifications. Share important updates, reminders, offers, and activity alerts to keep users informed and engaged.
02
Enable fast and secure transactions with trusted payment solutions. Give customers a smooth checkout experience while keeping their payment information protected.
03
Help users communicate instantly with real-time messaging. Support conversations, customer assistance, team collaboration, and instant updates within your app.
04
Make it easier for users to discover places, track locations, and navigate with accurate maps and location-based features built into your mobile experience.
05
Use AI and automation to simplify repetitive tasks, personalize experiences, generate smarter recommendations, and make your application more efficient.
06
Understand how users interact with your product through meaningful analytics. Track performance, identify trends, and use data to make better business decisions.
07
Connect your app with popular social platforms to make sharing, authentication, and user interactions easier while creating a more connected experience.
08
Build a reliable and scalable application with cloud infrastructure and powerful backend services that can grow alongside your users and business.
09
Connect your mobile app with external tools and services through third-party APIs. Extend functionality, automate workflows, and create seamless connected systems.
Smart solutions designed to adapt across industries effortlessly, helping businesses streamline operations, enhance performance, and drive sustainable growth.
We keep the journey practical and collaborative, moving from product definition to a working application and then into continuous improvement.
We turn your initial concept into a clear product scope by identifying users, business goals, essential features, and technical priorities.
We create intuitive flows and interfaces that help users complete important actions without unnecessary complexity.
We develop the application and connect the backend, APIs, payment services, analytics, authentication, and other required systems.
After quality checks, we prepare the product for release and continue supporting updates, improvements, and future feature development.
Shalehin Modasia
Marketing DirectorENGAGEMENT MODELS
Choose an engagement structure according to your project scope, internal resources, delivery expectations, and long-term product plans.
A suitable model when features, deliverables, and project requirements can be defined clearly before development starts.
Get a free consultationExtend your product team with developers and specialists for continuous development, feature releases, and ongoing technical work.
Build Your TeamA flexible approach for products where priorities can change during development or where continuous engineering support is required.
Get a free consultationReal stories from real partners who experienced clarity, accountability, and measurable business growth.
By combining innovation, strategy, and modern technologies, we help businesses improve efficiency, scale faster, and achieve sustainable growth.
Featured Technologies
OpenAi
Claude
Falcon
Gemini
Mistral
Grok
Meta
We consider privacy, security, accessibility, and industry requirements throughout the development lifecycle. Compliance needs vary by application, data type, business model, and sector, so requirements are assessed according to the project.

UK GDPR

Data Protection Act 2018

Data Security

WCAG Accessibility Standards

OWASP Mobile Security
HIPAA
Junkies Coder provides custom iOS, Android, Flutter, and React Native development in London, covering product planning, UI/UX design, development, API integration, testing, deployment, and ongoing support.
The cost depends on the app's features, platforms, design complexity, backend requirements, integrations, security needs, and development scope. A project estimate can be prepared after reviewing the requirements.
Yes. We develop native iOS and Android applications as well as cross-platform apps using Flutter and React Native, depending on the product requirements.
Yes. We can help startups define the MVP scope, prioritise core functionality, design the user experience, develop the application, and prepare it for initial launch and validation.
Yes. Support can include bug fixes, OS updates, performance improvements, security updates, monitoring, technical maintenance, and new feature development.
The timeline depends on the number of platforms, features, design complexity, integrations, backend architecture, testing requirements, and overall project scope.
Yes. We can integrate payment systems, authentication, maps, analytics, cloud services, communication tools, business software, and other third-party APIs required by the application.