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Custom Software Development

DDI Development is a reliable provider of the web and mobile solutions for startups, nonprofits, big and middle size enterprises. With more than 100 completed projects under our belt, the team of versatile experts have enhanced the expertise in building e-learning platforms, recruitment and financial systems, CRMs and e-commerce web sources, etc.

  • Min project size
    $10,000+
  • Hourly rate
    $25 - $49 / hr
  • Employees
    50 - 249
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2007

1 Locations

  • Warszawa , Poland

Select Focus Area
Application Platforms
Amazon Application Development Framework
40%
Linux server
25%
Heroku
20%
Azure Platform
10%
Windows server
5%
Frameworks and CMS
Django
32%
.NET
11%
CodeIgniter
6%
Zend PHP
6%
Programming & Scripting
PHP
15%
Python
15%
ASP
10%
C#
10%
Java
10%
Objective C
10%
SQL
10%
AJAX
5%
Industries
Information technology
50%
Business services
20%
Education
15%
Financial services
15%
Clients
Small Business (<$10M)
80%
Midmarket ($10M - $1B)
20%

Pricing Snapshot

Min. project size $10,000+
Avg. hourly rate $25 - $49 /hr
Rating for cost 4.9 /5

What Clients Have Said

DDI Development is noted for good value for cost, with project investments ranging from $4,000 to $300,000. Clients appreciate their flexibility and responsiveness, often highlighting budget alignment and financial honesty as key strengths.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 5 reviews
< $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

Select a service to see pricing information

Highly Rated Similar Providers

DDI Development Review Insights

Overall Review Rating

4.8
  • Quality 4.9
  • Schedule 4.6
  • Cost 4.9
  • Willing to Refer 4.9

Top Mentions

Review Highlights

  • Strong Technical Proficiency

    Clients consistently commend DDI Development for their technical expertise. They successfully handle complex technical challenges and deliver high-performance products that meet long-term business requirements.

  • Proficiency in Learning Management Systems

    The company has been praised for building robust Learning Management Systems (LMS) that have improved user adoption and course completion rates. Their platforms are noted for scalability and ease of use, significantly enhancing clients' operational efficiency.

  • Room for Improvement in Deliverable Quality

    One client noted that there might be room for improvement in the quality of deliverables and deadline management, suggesting a potential area for DDI Development to enhance their service.

  • Flexibility and Adaptability

    DDI Development is praised for their flexibility in handling changing project requirements. Their ability to adapt quickly to new circumstances is seen as a key strength in maintaining successful client relationships.

  • Positive Client Feedback and Outcomes

    DDI Development's projects have led to significant improvements in client operations, including increased efficiency and user satisfaction. Their work has received positive feedback and even international recognition, such as a UN award.

  • Expertise in Document Management Systems

    DDI Development has demonstrated strong expertise in developing custom Document Management Systems for healthcare and other industries. Clients appreciated their ability to streamline operations, enhance compliance, and integrate advanced features tailored to specific business needs.

DDI Development Reviews

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DMS, Web App & Mobile App Dev & Design for Healthcare Firm

  • Custom Software Development Mobile App Development UX/UI Design
  • Amazon Application Development Framework
  • $50,000 to $199,999
  • July 2023 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"What truly sets DDI Development apart is how every team member is committed to the project's success."

Jan 29, 2026
CEO, CallCareForms
Benjamin K.
Verified
  • Other industries
  • Pittsburgh, Pennsylvania
  • 1-10 Employees
  • Online Review
  • Verified

DDI Development has developed and designed a Document Management System (DMS) for a healthcare firm. The team has created a form builder, a web app, a mobile app, and a permission-based access system.

LMS Platform Development for Project Mgmt Company

  • Digital Engineering UX/UI Design Web Development
  • Usability Testing UX Strategy NodeJS Product engineering JavaScript Python
  • $50,000 to $199,999
  • Oct. 2024 - May 2025
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“They were so proactive in anticipating our needs that they exceeded our expectations at every stage.”

Sep 12, 2025
IT Director, PMCentersUSA
Alex Kagan
Verified
  • Education
  • Pittsburgh, Pennsylvania
  • 11-50 Employees
  • Online Review
  • Verified

DDI Development built a new LMS platform for a project management company. The team created a fully functional system with all the required features. They also provided user guides and technical support.

Custom Software Dev for Mobile App Development Company

  • Custom Software Development Web Development
  • NodeJS React
  • Confidential
  • Nov. 2022 - Sep. 2023
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Their professionalism and responsiveness were instrumental in the project's success."

Jul 5, 2024
IT Partner, SOLIT
Srbuhi Simonyan
Verified
  • Other industries
  • Yerevan, Armenia
  • 11-50 Employees
  • Online Review
  • Verified

A mobile app development company hired DDI Development to design and develop a custom document management system. The team integrated advanced features and ensured robust security protocols.

Frontend and Backend Development for e-Commerce Provider

  • E-Commerce Development
  • $10,000 to $49,999
  • Feb. 2016 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They have been able to solve problems where other web developers had failed."

Feb 1, 2017
CEO, Bluehack
Marco Dallatomasina
Verified
  • Other industries
  • Genoa, Italy
  • 1-10 Employees
  • Online Review
  • Verified

DDI Development provides long-term technical repair solutions for an e-commerce site’s frontend and backend. They currently manage QA and web updates while adding developers and advising transitions.

Platform Development For Boutique Management Consultancy

  • Web Development
  • Angular Symfony JavaScript PHP
  • Confidential
4.0
Quality
4.0
Schedule
3.0
Cost
4.5
Willing to Refer
4.5

"They're able and willing to be flexible with their clients."

Nov 18, 2015
Founder, We Build Concepts
Foris Hoppe
Verified
  • Other industries
  • Amsterdam, Netherlands
  • 1-10 Employees
  • Phone Interview
  • Verified

DDI Development lent development skills to a management company's database and platform back-end. The project primarily involved work in PHP, JavaScript, and Angular JS.

Developed E-Learning Platform For Education Startup

  • Custom Software Development
  • Django JavaScript PHP Python SQL
  • $200,000 to $999,999
4.5
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"DDI built an award-winning platform certified by the UN."

Nov 11, 2015
Commercial Director, Educational Startup
Anonymous
Verified
  • Education
  • London, England
  • 1-10 Employees
  • Phone Interview
  • Verified

DDI Development built an e-learning web platform for a management company. Projects mainly involved wireframing, front- and back-end development, API integration, and quality assurance.

Mobile App Development & Design for Fitness Company

  • Application Testing Mobile App Development UX/UI Design
  • $50,000 to $199,999
  • Apr. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They don't just execute the plan; they act as true technical partners."

Mar 5, 2026
Executive, RuckIt Fitness
Anonymous
  • Information technology
  • Richmond, Virginia
  • 1-10 Employees
  • Online Review

DDI Development has been hired to develop a mobile fitness app for iOS and watchOS using Swift and SwiftUI. The team has also built the app's UX and features, including a subscription management system.

Showing 1-7 of 7 Reviews

Locations (1)

Humańska 8 WarszawaPoland 00-789

50 - 75

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Alex Kagan

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