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Setting the new default in software development

Monterail is an agentic development company specializing in web and mobile applications for enterprise clients, ambitious startups, and scale-ups. Monterail works with recognized global brands, including Bosch, DocPlanner, EY, Merck, and SharkNinja.

Core Capabilities:

  • Custom web and mobile application development
  • AI-assisted software development services
  • Industries served: healthtech, MedTech, FemTech, fintech, proptech, retail, e-commerce
  • Team size: 130+ engineers and product experts
  • Min project size
    $10,000+
  • Hourly rate
    $25 - $49 / hr
  • Employees
    50 - 249
  • Locations
    Wrocław, Poland
  • Year founded
    Founded 2010
  • Languages
  • Timezones

2 Languages that we service

  • English
  • Polish

5 Timezones that we service

CET
Central European Time (CET)
EET
Eastern European Time (EET)
EST
Eastern Standard Time (EST)
GMT
Greenwich Mean Time (GMT)
MET
Middle East Time (MET)

1 Locations

  • Wrocław , Poland

Select Focus Area
Application Platforms
Amazon Application Development Framework
55%
Heroku
30%
Other app platform
15%
AI Consulting Focus
Programming & Scripting
Ruby
50%
Industries
Medical
25%
Financial services
20%
Retail
20%
Real estate
15%
eCommerce
15%
Other industries
5%
Clients
Midmarket ($10M - $1B)
50%
Enterprise (>$1B)
30%
Small Business (<$10M)
20%
Certified in:
Web Development

Pricing Snapshot

Min. project size $10,000+
Avg. hourly rate $25 - $49 /hr
Rating for cost 4.4 /5

What Clients Have Said

Monterail offers competitive pricing and good value for cost, with clients noting that their budgets align well with Monterail's services. Specific project costs range significantly, from around $30,000 for smaller projects to over $1 million for larger engagements, reflecting flexibility based on client needs.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 50 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Monterail Review Insights

Overall Review Rating

4.8
  • Quality 4.8
  • Schedule 4.7
  • Cost 4.4
  • Willing to Refer 4.8

Top Mentions

Review Highlights

  • Positive Feedback from End Users

    End users of Monterail's products often provide positive feedback, highlighting the usability and performance of the applications developed by Monterail.

  • Room for Improvement in Design

    While Monterail excels in development, some clients noted that their design capabilities could be enhanced. Bringing in external designers has been a strategy for some projects to achieve desired aesthetics.

  • Effective Cost Management

    Monterail offers competitive pricing and delivers good value for cost. They are willing to adjust pricing models to suit client budgets, contributing to long-term partnerships.

  • Client Engagement and Involvement

    Monterail actively involves clients in the development process, ensuring their needs and feedback are integrated into the project, which enhances satisfaction and outcomes.

  • Flexibility and Scalability

    Monterail is praised for their flexibility in scaling teams and adjusting resources as project needs evolve. This adaptability ensures they can handle various project sizes and complexities efficiently.

  • Excellent Communication

    Monterail's team excels in communication, maintaining transparency and clarity throughout the project lifecycle. Their ability to keep clients informed is a standout aspect of their service.

Monterail Reviews

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Services
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Industry
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Outsourced Development Team for HR Software Platform

  • Custom Software Development
  • $200,000 to $999,999
  • Sep. 2015 - Ongoing
4.5
Quality
4.5
Schedule
4.0
Cost
5.0
Willing to Refer
5.0

"The team is very young, so they are very energetic and dynamic."

Jan 12, 2017
Co-founder, HR Software Firm
Anonymous
Verified
  • Other industries
  • Switzerland
  • 1-10 Employees
  • Phone Interview
  • Verified

A two-year-old HR platform has relied on Monterail's outsourced development team since the HR software startup's inception.

Ruby on Rails Development for Crowd Funding Platform

  • Web Development
  • Other frameworks and CMS Ruby on Rails
  • $10,000 to $49,999
  • Sep. 2013 - Mar. 2015
4.5
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"They were transparent about what was best for us even though it wasn’t in their best interest."

Jan 9, 2017
Managing Director, Innovestment
Christin Friedrich
Verified
  • Financial services
  • Berlin, Germany
  • 1-10 Employees
  • Phone Interview
  • Verified

Monterail enhanced an existing Ruby on Rails crowd-funding site that has a large presence in Germany.

Website Redesigns for Online Medical Resources

  • Web Development
  • $50,000 to $199,999
  • Jan. 2015 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I really liked their approach of convincing us through data-driven metrics."

Jan 6, 2017
Fmr. Manager CEO Office, Merck
Anonymous
Verified
  • Information technology
  • Amsterdam, Netherlands
  • 1,001-5,000 Employees
  • Phone Interview
  • Verified

The engagement involved the redesign of performance-driven website resources and includes ongoing maintenance. 

Development Partnership for B2B Software as a Service

  • Custom Software Development
  • Angular Ruby on Rails
  • $1,000,000 to $9,999,999
  • Jan. 2012 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We decided to expand the relationship with them because they’re able to execute."

Jan 4, 2017
Co-founder, Cooleaf
John Duisberg
Verified
  • Business services
  • Atlanta, Georgia
  • 1-10 Employees
  • Phone Interview
  • Verified

An MVP deliverable for a startup turned into a lucrative development partnership requiring several Ruby on Rails and Angular specialists.

Ruby on Rails Development for Supply Chain Software

  • UX/UI Design
  • UX Strategy
  • $50,000 to $199,999
  • Jan. 2011 - Ongoing
5.0
Quality
5.0
Schedule
4.0
Cost
4.0
Willing to Refer
5.0

"They were able to put together the most credible plan for what I wanted to build."

Jan 4, 2017
Co-founder, Supply Chain Firm
Anonymous
Verified
  • Advertising & marketing
  • Chicago, Illinois
  • 11-50 Employees
  • Phone Interview
  • Verified

What began a test project to diversify the client's vendor-list turned into a several hundred thousand dollar UI/UX partnership.

Web and App Development for Toy Company

  • Custom Software Development
  • Other app platform
  • $50,000 to $199,999
  • Feb. - Sep. 2016
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They had very good project management and everything was tightly controlled."

Nov 16, 2016
CEO, MysteryVibe
Soumyadip Rakshit
Verified
  • Other industries
  • London, England
  • 11-50 Employees
  • Phone Interview
  • Verified

Monterail (formerly Untitled Kingdom) built a website and an Android app to be utilized by clients to connect to the hardware they manufacture. They provided the programming for the Android app and the implementation for the website.

iOS App Development for Yoga Availability App

  • Mobile App Development
  • Mobile Commerce Health & Wellness Mobile App Development Consumer Mobile App Development iPhone iOS App Development
  • $50,000 to $199,999
  • July 2016 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"I feel confident that they believe in my vision."

Nov 11, 2016
CEO, Yoga Availability App
Anonymous
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Phone Interview
  • Verified

Monterail (formerly Untitled Kingdom) was hired to do end-to-end development for an iOS application that gives customers in the UK access to yoga teachers in order to schedule and pay for sessions. 

Mobile App Development for Hearing Aid Company

  • Application Management & Support Application Testing Mobile App Development
  • $50,000 to $199,999
  • Feb. 2025 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Monterail exceeded expectations in managing the integration of multiple platforms and hardware configurations."

Sep 23, 2026
VP, Audien Hearing
Todd Robinson
Verified
  • Medical
  • Scottsdale, Arizona
  • 51-200 Employees
  • Online Review
  • Verified

Monterail has redesigned an existing app for a hearing aid company. They've developed new features and enhanced the app's compatibility with different product models.

AI Development & Consulting for Spend Management Co

  • AI Consulting AI Development Custom Software Development
  • Linux server AI Deployment Machine Learning Natural Language Processing AI Strategy AI Text Generation Python
  • Confidential
  • Jan. - May 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Everything they do is extraordinarily good."

Feb 27, 2025
CTO, Simfoni
Alan Buxton
  • Information technology
  • Morristown, New Jersey
  • 201-500 Employees
  • Online Review

Monterail developed an AI proof of concept for a spend management company. The team used AWS Bedrock to create an ML Ops environment and created a PowerPoint presentation.

Prototype Development for Women's Sports Media Platform

  • Custom Software Development UX/UI Design Web Development
  • Amazon Application Development Framework
  • Confidential
  • Feb. - June 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They were very responsive and timely with their work."

Feb 22, 2024
Executive, 5wins Inc
Anonymous
Verified
  • Media
  • San Rafael, California
  • 1-10 Employees
  • Online Review
  • Verified

A women's sports media company hired Monterail (formerly Untitled Kingdom) to develop and design a prototype of their platform.

Premier Verified means Clutch independently confirmed Monterail is a legally registered business,
financially sound (Creditsafe: Low Risk), and backed by 62 verified client reviews averaging 4.8 stars.

Learn More
Verified Client Reviews
62
Overall Review Rating
4.8
Source
Clutch
Last Updated
September 23, 2026

Business Entity

Business Entity Name MONTERAIL Sp. z o. o.
Source KRS-Pobierz
Jurisdiction of Formation Poland
Date of Formation May 27, 2010
Status Active
Last Updated June 16, 2021
ID 0000357415

Credit Report Results

International Credit Risk Assessment Low Risk
Source Creditsafe
Last Updated January 1, 2022
Learn More About The Clutch Verification Process

Locations (1)

Olawska 27-29 Wrocław, Poland 50-123

151 - 200

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