App Development Services
Flat 18 designs and develops apps for startups and scale-ups. We deliver robust, scalable solutions using modern tech stacks, tailored to your business goals and user needs.
What Sets Our App Development Apart?
- Bespoke apps for ambitious companies
- Senior engineers and designers on every project
- Agile, transparent process with rapid delivery
- Focus on usability, security, and future growth
Our App Development Expertise
We specialise in crafting digital products that combine powerful back-end logic with delightful user experiences.
Full-Stack App Development
From idea to launch, we handle everything: business logic, data processing, and seamless user journeys. Our integrated approach ensures your app is cohesive and maintainable.
Node.js & Modern Frameworks
We use Node.js for high-performance, scalable back-ends, and frameworks like React and Vue.js for sleek, interactive front-ends.
Serverless & Cloud-Native Solutions
Our serverless architectures (AWS Lambda, Vercel, Cloudflare Workers) enable automatic scaling and cost efficiency—ideal for startups expecting rapid growth.
Database Design & Integration
We design and implement efficient data storage using PostgreSQL, MySQL, MongoDB, or Firebase, ensuring your app is reliable and secure.
API-First Development
Our team builds robust APIs for seamless integration with third-party services and your wider digital ecosystem.
Our Proven Process
- Discovery: We clarify your objectives and technical needs.
- Architecture: Scalable, maintainable blueprints for your app.
- UI/UX: Intuitive and engaging user interfaces.
- Development: Clean, testable code from experienced developers.
- Testing: Comprehensive QA for performance and security.
- Launch & Support: Smooth deployment and ongoing improvements.
Technologies We Use
- Node.js, Express.js, NestJS
- React, Vue.js, Next.js
- PostgreSQL, MySQL, MongoDB, Firebase
- AWS, Vercel, Cloudflare
- Docker for containerisation
- GraphQL and REST APIs
Let’s Build Your Next App
Contact Flat 18 to discuss your app vision. Our expert team will help you launch a digital product that drives real business impact.
Tell Us About Your Project
Jump on live chat or fill in the form — we'll get back within a day.
Let's chat about your project
We're here to turn your ideas into reality with our design and development know-how.