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Nano-sized laser-focused development agency

We are a nano-sized software development agency. Unlike larger software development houses, we stay laser-focused on the needs of our few customers.

  • $5,000+
  • $50 - $99 / hr
  • 2 - 9
  • Wrocław, Poland
  • Founded 2012

1 Locations

  • Wrocław , Poland
Total Reviews
12
Average Referral Rating
4.9 /5
Most Common Project Size

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    many-to-many Review Insights

    Overall Review Rating

    4.9
    • Quality 4.9
    • Schedule 4.8
    • Cost 4.7
    • Willing to Refer 4.9

    Top Mentions

    • high-quality work (8)
    • communicative (6)
    • timely (4)
    • great project management (3)
    • easy to work with (2)
    • proactive (2)
    • reasonable pricing (2)
    • unique expertise (2)

    Review Highlights

    • Flexible and Adaptable

      Many-to-many is noted for their flexibility in adapting to client needs and modifying their approach as required. This adaptability has been crucial in meeting evolving project requirements.

    • Impressive Technical Expertise

      Many-to-many is recognized for their technical expertise, particularly in mobile app development using React Native. Their ability to handle complex technical requirements has been a significant asset.

    • Proactive Problem Solving

      Clients appreciate many-to-many's proactive approach to identifying and solving problems. They often go beyond the initial scope to suggest improvements and fix issues.

    • Areas for Improvement in QA Processes

      Some clients have noted that there could be improvements in the QA process, particularly in providing more insight into the QA teams and increasing the consistency of QA practices.

    • High-Quality Code and Stability

      Clients consistently praise many-to-many for delivering high-quality code and stable applications. Their attention to detail and commitment to not cutting corners are frequently highlighted as significant strengths.

    • Effective Use of Agile Methodology

      The company's use of agile methodology is highlighted as a strong point, allowing for efficient project management and quick turnaround times.

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    Mobile App Dev for Consumer Insights Platform

    • API Development Mobile App Development Web Development
    • Confidential
    • Nov. 2020 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "We have been very happy with the leadership and work product for more than four years we’ve worked together."

    Sep 5, 2024
    Director, Consumer Insights Platform
    Anonymous
    • Software
    • Oakland, California
    • 1-10 Employees
    • Online Review 
    • Verified

    many-to-many has developed a mobile app and web app for a consumer insights platform. They build a partner API, integrate e-commerce into the apps, and design the backend architecture.

    Development for Healthcare App

    • Mobile App Development
    • $50,000 to $199,999
    • June 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "The quality and structure of their code are impressive."

    Apr 1, 2020
    CEO, Healthcare App Developer
    Anonymous
    • Healthcare
    • London, England
    • 1-10 Employees
    • Phone Interview 
    • Verified

    Factorial Complexity took over a partially completed development project. They used React Native to create an application for patients to track their pain and receive customized recommendations.

    Native Mobile Development for Dating Application

    • Mobile App Development
    • $200,000 to $999,999
    • Mar. 2016 - Ongoing
    3.5
    Quality
    3.5
    Schedule
    4.0
    Cost
    3.5
    Willing to Refer
    3.5

    “Our work with them has been an evolution, and we’ve made a lot of great progress over the years.”

    Jan 24, 2020
    Digital Product Owner, Dating Application
    Anonymous
    • Information technology
    • Toronto, Ontario
    • 1-10 Employees
    • Phone Interview 
    • Verified

    Factorial Complexity has served as the main development partner for a company producing and maintaining a dating app. They turn wireframes given to them into web and mobile implementations on Android and iOS.

    iOS & Android Development Support for IT Company

    • Mobile App Development
    • $10,000 to $49,999
    • Oct. 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "... they've gone the extra mile to suggest design and UX changes and have the talent/ability to make these changes."

    Jan 2, 2020
    CEO, Momentum Technology
    Amanda Pietrocola
    • IT Services
    • Holmdel, New Jersey
    • 1-10 Employees
    • Online Review 
    • Verified

    Factorial Complexity refactored an iOS and Android app based on a provided list of tasks. They completed the list, identified numerous bugs, and addressed them.

    Full Mobile Development for Audio Streaming App

    • Mobile App Development
    • $10,000 to $49,999
    • Mar. - June 2019
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They were great to talk with, and I felt like we had a real partner in creating this app."

    Sep 10, 2019
    Product Manager, iAwake Tech
    Ward Parsons
    • Education
    • Teasdale, Utah
    • 1-10 Employees
    • Online Review 
    • Verified

    Factorial Complexity created music streaming apps for iOS and Android. They used React Native to reduce the overall development time and posed new ideas to further refine the backend functionalities.

    Design & Development Roadmap for Personal Budgeting App

    • Mobile App Development
    • $10,000 to $49,999
    • Nov. 2018 - Jan. 2019
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    “I was always confident that their team’s work aligned with my vision.”

    Mar 7, 2019
    Principal, Personal Budgeting App
    Egor Trefilov
    • IT Services
    • Riga, Latvia
    • 1-10 Employees
    • Online Review 
    • Verified

    Factorial Complexity was tasked with creating a cloud-compatible person budgeting app for iOS. They delivered a detailed design and development roadmap.

    App Customization for E-Learning Solution

    • Mobile App Development
    • Less than $10,000
    • Sep. 2018 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "The open communication and responsiveness of their team stand out to us."

    Feb 26, 2019
    COO, Raccoon Gang
    Peter Koblyakov
    • Information technology
    • Tallinn, Estonia
    • 51-200 Employees
    • Online Review 
    • Verified

    Factorial Complexity provided development support for an existing app. They customized the product and added features, including language localization.

    Mobile Development Outsourcing for UI and UX Design Firm

    • Mobile App Development
    • $10,000 to $49,999
    5.0
    Quality
    5.0
    Schedule
    4.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They always deliver quality and service."

    Sep 26, 2016
    President, Disrupt Studio
    Michael Lapico
    • Software
    • San Francisco, California
    • 1-10 Employees
    • Phone Interview 
    • Verified

    Factorial Complexity was hired to act as a partner to develop iOS applications for a firm specializing in user experience design and user interface design. 

    Outsourcing App Developers for Cultural Institutions

    • Custom Software Development
    • $10,000 to $49,999
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "They always deliver what they say they're going to deliver, and I've been pleased with their ability to do that."

    Sep 21, 2016
    Principal, GuideOne
    Juan Sanabria
    • Software
    • New York City, New York
    • 1-10 Employees
    • Phone Interview 
    • Verified

    Factorial Complexity was hired as an embedded team that assisted in mobile development projects as well as the development of other interactive programs targeted as museums and other cultural institutions.

    Application Development for Gaming Company

    • Custom Software Development
    • $10,000 to $49,999
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "I found them to be the best developers both quality and price-wise."

    Sep 20, 2016
    CEO, Neem Labs
    Raj Bhandari
    • Arts, entertainment & music
    • San Francisco, California
    • 1-10 Employees
    • Phone Interview 
    • Verified

    Factorial Complexity was hired to work on to build four different mobile native gaming applications and design the art for them. 

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