Custom Web App Development Company

Custom Web Applications Built for Performance

We design and develop web applications that solve real business problems. Whether you need an internal tool to streamline operations, a customer-facing platform to drive engagement, or a web extension of your existing mobile app, our team delivers scalable solutions tailored to your goals.

With over 15 years of experience and more than 274 apps launched, we combine technical expertise with a deep understanding of user experience.

Every project starts with your business objectives and ends with a product that performs, from first load to final conversion.

Online Training Platforms

Build interactive learning experiences with video modules, quizzes, and progress tracking to engage your users and deliver scalable digital education.

eCommerce Applications

Custom storefronts with secure payment integration, inventory management, and seamless checkout designed to drive conversions and support business growth.

Booking & Reservation Systems

Let your customers schedule appointments, book tables, or reserve services in real time with a user friendly interface and automated notifications.

Social Networking Apps

Create engaging community platforms with user profiles, messaging, content sharing, and robust data security to build lasting digital connections.

Online Banking & Fintech

Develop secure financial applications with encrypted transactions, account management, and reliable integration with existing banking infrastructure.

Interactive Games & Entertainment

Build web application based games and interactive experiences that deliver strong performance, engagement, and smooth user experience across all devices.

Online Polls & Surveys

Collect valuable user data with custom survey tools featuring real time analytics, easy integration, and an intuitive design for higher response rates.

Online Forums & Communities

Create scalable discussion platforms with user management, content moderation, and features that help brands build engaged digital communities.

Content Management
Systems

Custom CMS solutions that provide your team with an intuitive interface to create, edit, and publish content without developer support.

In-House Team

Every project is handled by our own developers, designers, and QA specialists in Canada. No outsourcing, no compromises on quality.

15+ Years of Experience

With over 274 apps launched across industries, we know what works and what doesn't. Our team has solved complex challenges for startups and enterprises alike.

Clear Process

We keep you involved at every step with regular updates, transparent timelines, and honest communication throughout your project.

Bottlebeez

This web application we've developed simplifies reservation management. It enables establishments to organize and plan their spaces. It also facilitates the booking of tables and booths, helping to boost revenues.

View the Bottlebeez project

Aardvark

Aardvark is a book club where users can subscribe and receive 3 books of their choice monthly. The in-app community can discuss books and discover new authors to read.

Explore the Aardvark web app

24/7

24/7 operates as an employment agency in the medical sector. We have developed an integrated platform encompassing a range of applications and web applications.

See web application 24/7

Civic Action

Civic Action merges a learning platform and a job board into a single Web application. This solution provides a rich and comprehensive user experience for both users and organizations.

All Seasons

All Seasons offers an on-demand service for your condominium, featuring a variety of services designed to make your daily routine more convenient.

Discover the All Seasons app

Facnet

Facnet is a billing management platform for physicians. This application provides access to medical invoices and reimbursements for physicians in Canada.

Custom Web Development

We build tailored web applications from the ground up, selecting the right tech stack, architecture, and hosting to match your requirements and scale with your growth.

Progressive Web Apps (PWA)

Fast, lightweight, and reliable. We develop PWAs that load instantly, work offline, and deliver an app-like experience directly in the browser, no download required.

Web App Design

Our UI/UX team creates interfaces that are clear, intuitive, and aligned with your brand. We focus on structure, navigation, and visual consistency to deliver an experience that keeps users engaged.

E-Commerce Web App Development

We build online stores that convert. From product catalogs and custom shopping carts to secure checkout and inventory management, every feature is designed to support your sales and simplify operations.

CMS Development

We build robust, scalable content management systems that make updates simple and keep your site running smoothly. Our custom CMS solutions are designed to help your users find what they need, fast.

Web App Testing & QA

Every project goes through rigorous testing before launch. Our QA team checks performance, security, and usability across browsers and devices to ensure a bug-free experience for your users.

NodeJS

NodeJS, a pillar of our development environment, is used in our Agile processes for web applications. It facilitates the creation of perfectly synchronized client-server applications. This approach aligns with your business objectives, while integrating advanced features to enhance user experience and data management.

Ruby on Rails

Ruby on Rails is an open source web development framework that uses Ruby, a powerful object-oriented programming language. The framework is designed to facilitate the rapid and efficient creation of web applications, with an emphasis on simplicity and productivity.

MongoDB

MongoDB is an open source, cross-platform, document-oriented database management system. It is distinguished by its membership of the NoSQL database category, offering superior flexibility and adaptability for modern data management.

ExpressJS

ExpressJS, the most renowned web framework for Node.js, is specially designed for the development of web applications and APIs. It is widely recognized as the de facto standard for building servers on the Node.js platform.

JavaScript

JavaScript is a high-level dynamic programming language, characterized by its low-typing flexibility and object-based approach. It is versatile, supporting different programming paradigms and can be interpreted directly in web browsers.

React

React is a JavaScript library developed by Facebook and Instagram, offering a simplified and rapid approach to creating hybrid applications. These applications combine elements of web and native applications, making them suitable for multiple platforms, such as Android and iOS.

Discover what our clients say

Jeremy Gordon

Co-founder @ KINETICOACH Travel Trainer

We were blown away by the responsiveness of their developers and their uncanny ability to conceptualize exactly what we were looking for in our app. From graphics to interface, they exceeded all expectations and delivered an incredible solution.

Trisha Stone

CEO @ IntheMood

Guarana managed all of the technical elements of the design/build of my mobile application, In the Mood. They're creative, they care, and they build great products. I have come to rely on them to not only build an amazing product but to also offer strategic advice on design and growth.

Lionel Coelho

Tech Project Manager @ City of Toronto

The app was looking sharp and functioning as intended.

Khaled Khalifa

Director @ Nurse on Call

They care about the product and their clients and they see the long-term potential of your business. They're responsive and approach the engagement with a long-term perspective.

Méléhi Diane Yo

Founder @ BC Paris

Thank you for your services Guarana Technologies. You were able to understand my desires and I am completely satisfied. Additionally, you provided comprehensive mentoring and guidance throughout the development process. I highly recommend, you support entrepreneurs. Innovative is the word that best describes you. I highly recommend.

Chris

CEO @ GoBeMap

Guarana did a fantastic job developing an iOS mobile app for me. GoBeMap is makes it much easier for people who lead a healthy, active lifestyle to find the places that support them. I'm not a tech guy, and Guarana was very patient and produced a great product - no crashes reported. I'll continue to work with them, and already recommended them to a friend for his established business.

What is a web application?

A web application is an interactive software program that runs on a web server and is accessed through a browser. Unlike traditional websites that display static content, web apps allow users to input data, perform tasks, and interact with dynamic features. Examples include online banking platforms, project management tools, and e-commerce stores.

How long does it take to develop a web app?

Development time depends on complexity. A simple web app with basic features typically takes 1 to 3 months. Medium-complexity applications with user accounts, payment systems, and integrations usually require 3 to 6 months. Complex, feature-rich web apps can take 6 to 12 months or more.

How much does web app development cost?

Costs vary based on features, design complexity, and team location. Simple web apps typically range from $15,000 to $30,000. Medium-complexity projects fall between $30,000 and $75,000. Complex, custom-built web applications can cost $75,000 to $200,000 or more.

Do you provide support after the web app is launched?

Yes. We offer ongoing maintenance and support to ensure your web app stays secure, up to date, and performing well. This includes bug fixes, security updates, performance optimization, and feature enhancements as your business evolves.

Will my web app work on mobile devices?

Yes. We build responsive web applications that adapt to all screen sizes, from desktop to tablet to mobile. If you need an app-like mobile experience, we can also develop a Progressive Web App (PWA) that works offline and can be installed on home screens.

How do you ensure the security of my web app?

We implement industry best practices including data encryption, secure authentication, regular vulnerability testing, and compliance with standards like GDPR where applicable. Security is built into every stage of development, not added at the end.

Web App Development Company

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