We design and develop Web & mobile apps to support startups and businesses on their missions

Mike Grishaver

Working with them for several years, I have found the Monterail team to be composed of dedicated, reliable and fast designers, web developers and engineers. They are also creative and easy to work with. I recommend them highly for your web and mobile development projects.

Mike Grishaver

Product manager, LinkedIn

Alexander Hoffman

Unlike other typical software companies, Monterail really wanted to understand the rationale of the project by asking many meaningful questions. Their involvement helped us to define a visibly better solution. Working with Monterail feels much more like working with your own team and we are definitely going to continue our cooperation.

Alexander Hoffman

Head of Digitization Africa, Merck

John Duisberg

It took Monterail 6 weeks to deliver us a beautifully designed app for iOS and Android. I didn't even know it is possible! Each stage of the development was conducted professionally and in a timely manner: from the concept, through the implementation to final steps.

John Duisberg

Co-founder of Cooleaf, Inc.

Michel Regueiro

What impressed me most with Monterail is their commitment and willing to go the extra mile. It's really great to feel they care as much as you do about your project and will work hard to find the right solution. Monterail is truly an extension of our development team.

Michel Regueiro

CEO, Teambook

How we make your business thrive

Your dedicated project team will deliver you a quality app from its early stages to a successful product. We use Ruby on Rails and JavaScript technology and design the finest UX & UI according to our clients needs.


Product Design

Make sure your product delivers top-notch user experience with quality responsiveness and unique design.


Web development

Build the perfect web app with Ruby on Rails, JavaScript and Elixir technology with a reliable team of experts who care about your success.


Mobile development

Develop amazingly looking mobile apps for iOS, Android and Windows in the quickest way possible with a unified codebase.


MVP development

Ship your product to the market faster. Evaluate and upgrade the app accordingly to your customers’ needs and find its first adopters.


Internet of Things development

Empower your product with invaluable insights from connected devices in the physical world and stay ahead of the competition.


Vue.js development

Vue.js is the most flexible JavaScript framework out there that will help you release your product faster. And we know how to help you achieve that.

We make your business digital with a range of modern technologies



Cooleaf case study

Building a beautiful business app in a swift and efficient manner

Cooleaf is a web and mobile application letting teams find activities they love to empower shared interests and passions. Started from the scratch, now Cooleaf serves numerous enterprise customers like Citibank and Turner. It was announced the best B2B app during Atlanta Mobile Awards 2016.


16 000

active users
who love Cooleaf


days to deliver
MVP of the product


hours to the release of mobile app
for iOS, Android and Windows

Estimate your project

Cooleaf and Monterail case study

Blog articles

Rails Aren’t Bad. Active Record Is.

Rails Aren’t Bad. Active Record Is.

Written by: Wojciech Maciejak

Is there anyone out there in the Ruby community who doesn’t know Active Record? I don’t think so. Many of us start our adventure with Rails by writing AR models. And we write them a lot. We detect the N+1 issue many...

27 Women Who Change the Tech World [Infographic]

27 Women Who Change the Tech World [Infographic]

Written by: Karolina Gawron

From developers to designers, from CEOs to investors, today’s tech landscape is full of people redefining our perception and use of technology. Among them—many women spearheading this change. True, there are still too...

SOLID Principles Cheatsheet [Printable PDF]

SOLID Principles Cheatsheet [Printable PDF]

Written by: Zuzia Kusznir

In object-oriented programming, SOLID states for five design principles that help a developer build easy to extend and maintain software. In this article I’m not going to explain what’s hidden behind it though. It’s...

Monterail was recognized as one of the most dynamic technology companies in the Deloitte Technology Fast 50 Central Europe competition for 2017 and 2016.


We’d love to hear about your project