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We create custom web and mobile solutions.

Mainsoft is a professional software development service provider offering a variety of IT services and working with customers globally.

We help clients to establish and operate dedicated development teams as well.

We serve FinTech, HealtCare, EdTech, E-commerce and Retail companies and startups.

Up to date, we have developed more than 100 web projects and tons of mobile apps.

  • Min project size
    $50,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2010
  • Languages
  • Timezones

2 Languages that we service

  • English
  • Polish

9 Timezones that we service

EET
Eastern European Time (EET)
CET
Central European Time (CET)
IDT
Israel Daylight Time (IDT)
PST
Pacific Standard Time (PST)
ACT
Australia Central Time (ACT)
AET
Australia Eastern Time (AET)
CNT
Canada Newfoundland Time (CNT)
CST
Central Standard Time (CST)
EST
Eastern Standard Time (EST)

1 Locations

  • Warszawa , Poland

No have been added yet...

    Pricing Snapshot

    Min. project size $50,000+
    Avg. hourly rate $50 - $99 /hr
    Rating for cost 4.7 /5

    What Clients Have Said

    Mainsoft offers good value for cost, fitting client budgets well. Projects typically involve 2-5 employees, with costs ranging from $10,000 to $20,000. Clients appreciate timely delivery, high quality, and responsive management, indicating strong overall pricing satisfaction.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $50,000 - $199,999 based on 9 reviews
    < $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

    Select a service to see pricing information

    Mainsoft Review Insights

    Overall Review Rating

    5.0
    • Quality 5.0
    • Schedule 5.0
    • Cost 4.7
    • Willing to Refer 5.0

    Top Mentions

    Review Highlights

    • High Client Satisfaction and Quality Deliverables

      Mainsoft's deliverables are consistently high quality, leading to high client satisfaction rates, as seen in feedback from various sectors, including financial services and digital agencies.

    • Effective Communication and Responsiveness

      Mainsoft is recognized for their open and effective communication, maintaining transparency with direct access to developers and quick response times, enhancing client relationships and project outcomes.

    • Proficient in Custom Software Development

      Multiple clients praised Mainsoft for their ability to deliver tailored software solutions across various industries, including fintech, IT services, and climate data platforms, highlighting their technical expertise and adaptability.

    • Areas for Improvement in Documentation

      While Mainsoft delivers high-quality work, some clients suggest improvements in documentation practices to further enhance project transparency and client understanding.

    • Strong Project Management Skills

      Mainsoft is commended for professional and adaptive project management, meeting deadlines and project specifications with effective communication, ensuring client satisfaction across different projects.

    • Impressive Technical Know-How

      Mainsoft's technical talent, especially in areas like API architecture and mobile development, is frequently highlighted as a significant strength, contributing to successful project completions.

    Mainsoft Reviews

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    Software Development & Testing for FinTech Company

    • Application Testing Custom Software Development
    • Confidential
    • June 2023 - Ongoing
    4.5
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "They have consistently been able to onboard new, highly skilled professionals within a very tight timeframe."

    Jun 24, 2024
    CIO & CISO, Pytheas Capital Advisors
    Eric Taïeb Walch
    Verified
    • Financial services
    • Paris, France
    • 11-50 Employees
    • Online Review
    • Verified

    Mainsoft provides module development and enhancement of a TRESO2 platform for a fintech company. The team tests the solution and focuses on functionalities to improve operational efficiency and compliance.

    Staff Augmentation for Software Development Company

    • Custom Software Development IT Staff Augmentation
    • Confidential
    • Jan. 2021 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "Their communication and understanding skills are superb."

    Aug 7, 2022
    Partner, Software Development Company
    Anonymous
    Verified
    • Other industries
    • Munich, Germany
    • 51-200 Employees
    • Online Review
    • Verified

    Mainsoft has deployed an Angular developer to support a software development firm in building custom Angular applications that would enable users to manage their events and courses online.

    Plugin Architecture & Web Dev Support for Software Provider

    • Custom Software Development Web Development
    • Confidential
    • May 2021 - Apr. 2022
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "Overall, they delivered within the expected timeframe and contributed effectively."

    Apr 28, 2022
    Admin & Finance Manager, jemmic
    Anonymous
    Verified
    • Other industries
    • Luxembourg
    • 11-50 Employees
    • Online Review
    • Verified

    Mainsoft was hired by a software provider for their product assessment and streamlining of the API and plugin architecture. The team also supported the client's internal development team and solution architect.

    Custom Software Dev for Climate Data Platform

    • Custom Software Development
    • $50,000 to $199,999
    • Oct. 2021 - Mar. 2022
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They are a professional team of developers who contributed in every possible way."

    Mar 8, 2022
    Co-Founder & CTO, Climate Data Platform
    Anonymous
    Verified
    • Other industries
    • Switzerland
    • 1-10 Employees
    • Online Review
    • Verified

    Mainsoft provided custom software development services for a climate data platform. They built an MVP of the client's platform using React.js, Spring, and PostgreSQL and were deployed via AWS.

    App Development for Monitoring & Analytics Company

    • Mobile App Development
    • $50,000 to $199,999
    • Jan. 2016 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They have a real desire to understand what needs to be done and do it in the best way."

    Mar 19, 2020
    CEO, S2 tikshuv LTD
    Alexey Sokolov
    Verified
    • Information technology
    • Haifa, Israel
    • 1-10 Employees
    • Online Review
    • Verified

    Mainsoft developed the front-end of a mobile application for a monitoring and analytics company. The team built and designed the front-end of the Android platform.

    IT Consulting for Financial Services Company

    • Other IT Consulting and SI
    • Less than $10,000
    • Apr. - Jan. 2018
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "They have a depth of technical talent."

    Mar 16, 2020
    Head of Integrations Engineering, Square Inc.
    Matthew Lent
    Verified
    • Financial services
    • San Francisco, California
    • 1,001-5,000 Employees
    • Online Review
    • Verified

    Mainsoft produced a custom report by gathering financial data using the stakeholders' APIs. They also performed custom web and mobile application development.

    Android App Dev for Vending Machine Platform

    • Mobile App Development
    • $10,000 to $49,999
    • Sep. 2017 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “They have very good quality and they resolve issues very fast.”

    Feb 11, 2020
    Co-Founder, NearCHAO
    Vadim Kazantsev
    Verified
    • Other industries
    • Moscow, Russia
    • 1-10 Employees
    • Phone Interview
    • Verified

    Mainsoft developed an Android mobile app with iBeacon technology that enables users to make vending machine purchases from their mobile devices and collect loyalty discounts. The collaboration is ongoing.

    Application Management & Support for SaaS Tech Company

    • Application Management & Support Application Testing Web Development
    • $50,000 to $199,999
    • Sep. 2024 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "All was delivered on time."

    Oct 22, 2025
    Head of IT & Information Security, Pink University GmbH
    Anonymous
    • Other industries
    • Hamburg, Germany
    • 51-200 Employees
    • Online Review

    Mainsoft provides Java and Kotlin development support for a SaaS tech company. The team is responsible for maintaining and fixing the client's platform, integrating and developing APIs, and managing projects.

    Web App Dev Staff Augmentation for IT Services Company

    • Custom Software Development IT Staff Augmentation Web Development
    • $200,000 to $999,999
    • Oct. 2022 - Oct. 2024
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    ''We were very satisfied with how the guys from Mainsoft responded to our needs and our customer's requirements.''

    Jun 12, 2024
    Product Owner, IT Services Company
    Anonymous
    Verified
    • Other industries
    • Vienna, Austria
    • 11-50 Employees
    • Online Review
    • Verified

    Mainsoft has provided developers to assist in front- and backend development of a web app for an IT services company. The app's goals have been production planning enhancements and supply chain optimization.

    Showing 1-10 of 17 Reviews

    Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

    Learn More
    Verified Client Reviews
    14
    Overall Review Rating
    5
    Source
    Clutch
    Last Updated
    October 22, 2025

    Business Entity

    Business Entity Name Mainsoft Sp. z o.o.
    Source Central Statistical Office of Poland
    Jurisdiction of Formation Poland
    Date of Formation March 10, 2021
    Status Active
    Last Updated December 26, 2024
    ID 0000886423

    Credit Report Results

    International Credit Risk Assessment Moderate Risk
    Source Creditsafe
    Last Updated December 26, 2024
    Learn More About The Clutch Verification Process

    Locations (1)

    ul. Szpitalna 8 WarszawaPoland 00-031

    50 - 75

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