Custom application development
With over 15+ years of experience in Custom application development, Fleek Vertex delivers secure, scalable and high-performing web solutions tailored to your business goals and the needs of your customers. From industry-specific enterprise applications to customer-focused digital solutions, we are ready to take on any challenge with confidence and expertise.
Looking for a trusted custom application development partner?
Custom application development allows your business to solve specific challenges that off-the-shelf software cannot address. At Fleek Vertex, we work with UK organisations to design and build bespoke applications tailored to your processes, users, and long-term objectives.
Our approach is structured and collaborative. From discovery and solution design through to development, testing, and deployment, we focus on creating secure, high-performing applications that integrate seamlessly with your existing systems and workflows.
Whether you are developing an internal business system or a customer-facing platform, our team combines technical expertise with commercial insight. We don’t just build applications - we create dependable digital solutions that improve efficiency, support growth, and adapt as your business evolves.
Key Custom App Services
SaaS Platform Development
Design and build subscription-based software solutions for global reach.
Legacy System Modernisation
Upgrade existing systems to microservices and cloud-native architectures.
CRM & ERP Integrations
Seamless connectivity with Salesforce, Dynamics, SAP, and more.
Workflow Automation
BPM and RPA integrations to automate business processes.
Analytics & Reporting
Custom dashboards and BI tools to visualise key metrics.
Maintenance & Support
24/7 support, security patches, and feature updates.
Core Capabilities
Responsive & Mobile-First Design
Pixel-perfect layouts that adapt across smartphones, tablets, and desktops for optimal user engagement.
Custom Web Application Development
Bespoke full-stack solutions using React, Next.js, Node.js, and microservices to meet specific business needs.
SEO-Friendly Architecture
Clean, semantic HTML and optimised loading strategies to improve search rankings and organic traffic.
Performance Optimisation
Lazy loading, code splitting, and asset compression for sub-second load times and smooth navigation.
Enterprise-Grade Security
SSL/TLS, OWASP best practices, and secure authentication to protect sensitive data.
Scalable Cloud Infrastructure
Containerised deployments and auto-scaling on AWS, Azure, or GCP to handle peak traffic effortlessly.
Technologies we use
Modern frameworks and platforms chosen for performance, security, and scalability.
Frequently asked questions
Quick answers to common questions about our Mobile-App Development services.