Web Application Development
Building Web Applications is our cup of tea. We've built numerous web applications for numerous industries. Whether it's an MVP idea or a need to scale your app, we're ready to deliver what you need.
Our experts worked with 20+ worldwide tech innovators

Why choose us for web app development?
Fast & Strategic Development
We don't just build apps - we build successful ones. Starting with the right tech stack for your MVP is crucial for rapid idea validation. Our expertise in productive technologies like Elixir & Phoenix ensures you get to market quickly while laying a solid foundation for future growth.
Built for Scale & Growth
Your app's success means growing user demands. We architect solutions that scale seamlessly from MVP to enterprise-level applications. With technologies designed for distributed processing and fault tolerance, your web app will handle growth without performance bottlenecks or costly rewrites.
Proven Success Methodology
Nearly a decade of app development has taught us what works. We understand that success depends on proper idea validation, market fit, user experience, and smart marketing. While no one can guarantee success, our battle-tested approach maximizes your chances of building something users love.
End-to-End Expertise
Technology is just one piece of the puzzle. We bring comprehensive knowledge across the entire development lifecycle - from initial concept validation and user interface design to market positioning and launch strategy. You get a complete partner, not just developers.
Check out our projects

Curiosum enabled our team to develop a complete platform despite their lack of prior knowledge about Elixir stacks. In addition, their team impressed the client with their honesty, integrity, availability, and efficiency.

I'm very satisfied with the deliverables and impressed with the partnership. Curiosum is efficient and communicative team.

Curiosum helped us substantially to introduce OTP and caching concepts into out app as well as formulate the increasingly complex API in a concise manner. They played essential role in the development of our product.

Curiosum team have been great to work with, and we would certainly recommend them. Both of the developers we've had from them have been talented, hard working and a great asset to our team.

Curiosum team has adapted very well to the way we work and has been able to give valuable contribution to our overall product development.

Thanks to Curiosum, the platform now supports 10 times more users within the same server capacity. Also, external and internal stakeholders are happy with the quality of the application. Overall, the team works seamlessly through two-week sprints, using Slack and Jira for project management.

Finding experts in the tech stack we use - Elixir, Phoenix, React, GraphQL - is not easy. Curiosum understood our business perspective well and offered valuable feedback. That is exactly what we expect from our outsourcing partners.

We can help you with various web application development challenges
Web app consulting
Phoenix framework web development
React.js web development
Web app UX/UI design
Web app scaling strategy
MVP web development
Web app maintenance
Custom web software

Knowledge base for curious minds
Elixir Meetups
Connect with fellow developers and explore Elixir together.
Open source projects
Browse our contributions to the dev community.
Ebooks
Level up with our expert tech guides.
Recordings
Watch our tech talks and workshops.
Cooperation that simply works
Discovery & Planning
We understand your web application vision and business goals. You'll receive a detailed project roadmap, technical architecture proposal, and clear development timeline.
Design & Prototyping
We create wireframes and interactive prototypes with user-friendly interfaces that maximize conversions. We validate the design with you before development begins.
Development & Testing
Our team builds your web app using Elixir, Phoenix, and React.js with agile methodology. You receive regular updates and can test new features as they're completed.
Launch & Support
We deploy your application and monitor its performance. After launch, we provide ongoing maintenance, performance optimization, and scaling assistance as you grow.
Cooperation models that fits your organization
We are working with small, medium, and large companies, and we know that each company has its own goals, strategies, and needs. Regardless of what type of organization you represent, our goal is to be a partner that becomes an integral part of your company.
Outsourcing model
We are responsible for delivering your project from scratch or as a new module within an existing application. To make sure that you're up-to-date with our work, we maintain daily communication and meetings.
Staff augmentation model
We extend your current team, providing expertise and team size for your needs. Our single goal here is to make sure that our part of the team becomes an integral part of yours so that it feels like you hired someone in-house.

Schedule a free web app consultation
You probably have some questions, and that's perfectly fine. I learned over time that the easiest way to discuss specific needs and dispel any doubts is through a meeting.

Michał Buszkiewicz
CTO
What can we talk about:
Your business goals and how our web development expertise can help
Development of your new web application or modernizing an existing solution
Scaling your web platform to handle growing user demands while keeping costs in check



You have questions, we have answers.
Get quick answers to questions our clients frequently ask about working with us.
Can't find what you're looking for? Reach out to our team directly.
We build various types of web applications including MVPs, SaaS platforms, e-commerce solutions, content management systems, and enterprise web applications. Our expertise spans from simple business websites to complex, high-traffic applications.
Elixir and Phoenix provide exceptional performance, scalability, and maintainability. Phoenix can handle millions of concurrent connections while maintaining low latency, making it perfect for real-time applications. Elixir's fault-tolerance ensures your web app stays running even when issues occur.
Development time varies based on complexity and features. A simple MVP typically takes 2-3 months, while more complex applications can take 4-6 months or longer. We provide detailed timelines during our planning phase based on your specific requirements.
Yes, we offer comprehensive post-launch support including bug fixes, security updates, performance monitoring, and feature enhancements. We believe in long-term partnerships and help your web application evolve as your business grows.
We understand that you may have some doubts, and that's why we invest a lot in various web development activities to prove our expertise. Here is a list of resources you may be interested in:
- Blog
- Resources page featuring podcast episodes, webinars, conferences
- Open source initiatives
- Elixir meetups
As a web development shop specializing in Elixir and Phoenix, we are determined to share knowledge with the community and learn new things. Apart from the listed above resources, we learn together through regular weekly internal lightning talks and documentation of good web development practices that we constantly develop.
We can work with your existing designs or provide complete UX/UI design services. Our design team creates user-friendly interfaces focused on conversion optimization and excellent user experience.