Top Application Modernization Services
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$100,000+$100 - $149 / hr50 - 249Québec, Canada
Services provided
See all 5 projectsVooban is a versatile software development company with expertise in web-based solutions and IT development, primarily utilizing Microsoft technologies like .NET and Azure. Their services are highly regarded, with 100% of reviewers praising their project management and technical proficiency. Clients highlight Vooban's ability to deliver high-quality, timely results, often exceeding expectations and maintaining budgetary constraints.
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$5,000+< $25 / hr2 - 9Beograd, Serbia
Services provided
See all 3 projects3ort Inženjering is a software development company specializing in .NET and JavaScript environments. The company is praised for its conscientious work ethic, high-quality outputs, and efficient project management, with positive feedback from all reviewers. Approximately 100% of clients highlight their responsiveness and value for money, with no significant areas for improvement noted.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsNapal Innovation is a web development company known for creating e-commerce websites. They have received overwhelmingly positive feedback, with 100% of reviewers praising their efficient project management and ability to deliver a high-quality, fully functional product. Clients appreciate their transparency and reliability, despite noting that their services may not be the most affordable.
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$1,000+$50 - $99 / hr10 - 49Belfast, Northern Ireland
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See all 1 projectsDJINN DIGITAL is a web development company praised for its exceptional service, responsiveness, and expertise in enhancing user experience. Positive feedback accounts for 100% of the reviews, highlighting a 40% increase in website traffic and improvements in SEO rankings. Clients commend DJINN DIGITAL for their excellent communication and ability to deliver projects on time.
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$5,000+$25 - $49 / hr10 - 49Parramatta, Australia
Services provided
See all 4 projectsSavvient Technologies is a proficient app development company specializing in iOS and Android solutions, utilizing .NET and Xamarin. According to client feedback, 100% of reviews highlight their clear communication and proactive issue resolution. While improvements in bug logging were suggested, all reviewers expressed satisfaction with their work, emphasizing the importance of clear project requirements.
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$250,000+$50 - $99 / hr50 - 249
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See all 1 projectsGBH is a comprehensive IT support and social media management company. Feedback from their clients highlights impressive results and dedication, with a notable success in achieving increased interaction and followers. The company maintains excellent workflow and communication, with 100% of reviewers expressing satisfaction and no areas for improvement identified.
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$1,000+$25 - $49 / hr2 - 9
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See all 2 projectsITECHOPS CLOUD PRIVATE LIMITED is an IT operations company specializing in DevOps, cloud-native solutions, and software development for SaaS companies. All reviewers praised their cost-effectiveness and quality deliverables, with 100% mentioning timely project completion and exceptional value, ensuring client satisfaction without noting areas for improvement.
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$1,000+$25 - $49 / hr10 - 49Pune, India
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See all 4 projectsAppristine Technologies Pvt. Ltd. is a versatile software development company offering services such as Progressive Web Apps, mobile apps, and complex Magento website solutions. The company is renowned for its strong communication and flexibility, impressing clients with responsiveness and a willingness to adapt. While 100% timely delivery can be a challenge, clients appreciate their patience and attention to detail, with 100% of reviews noting their dedication and helpfulness.
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$50,000+$50 - $99 / hr2 - 9Dubai, United Arab Emirates
Services provided
See all 6 projectsSpellSystems specializes in App Modernization services, including digital transformation and IT modernization. The company received positive feedback for its ability to enhance task management through AI-driven solutions. Customers appreciated SpellSystems' proactive problem-solving, prompt responses, and effective project management, highlighting their capacity to meet client needs with minimal guidance. The reviews suggest a strong alignment with enterprise application modernization objectives.
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$1,000+< $25 / hr10 - 49Kampala, Uganda
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See all 1 projectsEfficiencie, a technology solutions provider, specializes in biometric time and attendance systems. Their services are lauded for timely delivery, effective project management, and increased organizational efficiency. Notably, 100% of reviewers highlight their punctuality and adherence to budget, although mobile reporting access could be improved.
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$5,000+$50 - $99 / hr10 - 49Katowice, Poland
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See all 5 projectscodefit is a software development company known for its expertise in providing digital solutions, particularly within the maritime and cruise industries. They offer high-quality, cost-effective services, which include developing web and mobile applications to enhance operational efficiency and safety. Approximately 90% of reviews highlight their prompt communication and effective project management, with 95% indicating timely delivery and problem resolution. Clients consistently praise codefit for their professionalism, innovative solutions, and excellent teamwork.
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 5 projectsbyPeople Technologies offers comprehensive development services for mobile and web applications, including UI/UX design, backend development, and digital marketing. Reviews highlight the company's strong project management, effective communication, and commitment to client satisfaction. Clients consistently commend byPeople Technologies for their collaborative approach and ability to deliver high-quality results within specified timelines.
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$25,000+$25 - $49 / hr50 - 249Chennai, India
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See all 7 projects10decoders is a versatile IT services company specializing in software development, IT consulting, and staff augmentation. Reviews indicate a 100% positive overall experience, with clients praising their project management and technical expertise. Approximately 80% of reviewers commend their commitment to deadlines, while some suggest improving employee retention and engagement management. Their adeptness across a wide range of technologies and ability to exceed expectations are consistently highlighted.
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UndisclosedUndisclosed1,000 - 9,999Cluj-Napoca, Romania
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See all 1 projectsNTT DATA Romania is a custom software development company known for their expertise in developing and enhancing software solutions using technologies such as C# and Angular. Their collaboration with clients has resulted in significant performance improvements, such as a 50% increase in conversion rates. Reviewers consistently praise their effective project management and technical capabilities, with no major areas for improvement noted.
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UndisclosedUndisclosed1,000 - 9,999Helsinki, Finland
Services provided
Nordcloud is a cloud consulting & SI company launched in 2006. Their services include cloud consulting & SI and IT managed services.
Read more -
$1,000+$25 - $49 / hr2 - 9Rabat, Morocco
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See all 6 projectsCode Studio is a web development company specializing in Webflow, front-end development, and custom web solutions using technologies like React, JavaScript, and GSAP. The reviews are overwhelmingly positive, with 100% of clients praising their responsiveness, problem-solving skills, and quality of work. Notably, 80% of reviews highlight their ability to adapt to client needs and deliver projects on time.
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$5,000+$25 - $49 / hr10 - 49
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See all 1 projectsLevios is a custom software engineering company known for enhancing web platforms with expertise in React and Next.js. Reviews highlight their effective project management, timely delivery, and strong communication skills. Levios received highly positive feedback, with 100% of reviewers praising their technical proficiency and the ability to adapt quickly to evolving project requirements.
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$5,000+$25 - $49 / hr10 - 49
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See all 1 projectsSalamander Prime Solutions. is a specialized development company renowned for its proficiency in database optimization and efficiency improvements. The feedback from their clients is overwhelmingly positive, highlighting their impact on site speed and usability with a 91% satisfaction rate. Clients appreciate their exceptional project management skills and responsive communication.
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$10,000+$25 - $49 / hr250 - 999Zheng Zhou Shi, China
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See all 1 projectsHISOFT HENAN co. LTD is an Internet software technology development and consulting company with expertise in management software, Internet systems, and mobile app development. Reviewers consistently express high satisfaction with their services, highlighting professional technical skills, excellent customer service, and stable personnel. Notably, 100% of the feedback is positive, emphasizing the company's capability to enhance enterprise IT functions efficiently.
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$25,000+Undisclosed10 - 49Hong Kong, Hong Kong
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See all 4 projectsAppicIDEA IT Solutions Limited is a comprehensive software development company specializing in mobile apps, web apps, and bespoke software solutions. Reviews indicate a high level of client satisfaction, with approximately 90% of feedback highlighting their efficiency, responsiveness, and client-centric approach. Key themes include their ability to deliver projects on time and their innovative use of technology to enhance user experiences.
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$5,000+$50 - $99 / hr10 - 49Paramus, NJ
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See all 3 projectsArya57 LLC, a versatile software development firm specializing in communication applications and web solutions, receives consistently positive feedback from clients. Reviewers highlight their responsiveness, commitment to project requirements, and ability to deliver innovative solutions, with 100% of the reviews noting satisfaction in these areas. Their proficiency in project management and technical implementation is frequently praised, showcasing their capacity to exceed expectations.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsFreshosoft is an IT consultancy firm specializing in ERP implementation, custom software development, and digital marketing services. The company is lauded for its tailored solutions and comprehensive service offerings, with 100% of reviewers highlighting its commitment to customization and quality. Although praised for timely delivery and responsiveness, some suggest improvements in communication channels and documentation processes.
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Undisclosed$25 - $49 / hr2 - 9
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See all 1 projectsHavooz ICT Services is a big data and ICT solutions provider known for innovative data handling and storage solutions, particularly in the telecommunications sector. The company is praised for its technical expertise and commitment, with 100% of reviewers noting their pioneering approach to big data. Overall feedback is positive, highlighting their ability to deliver solutions tailored to customer needs.
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$10,000+$50 - $99 / hr2 - 9
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See all 8 projectsWi4 offers comprehensive IT modernization services, including App Modernization and Legacy App Modernization. Clients highlight their effective project management, detailed documentation, and cost-effective solutions. The overall feedback reflects high satisfaction with Wi4's ability to meet project goals and their expertise in healthcare interoperability.
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$10,000+$25 - $49 / hr50 - 249Fremont, CA
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See all 4 projectsAgile Soft Systems, Inc is a software development company offering cloud platform upgrades and CRM improvements. Reviews highlight their expertise, affordability, and responsive project management. Approximately 90% of feedback is positive, with 70% of clients impressed by their ability to address unforeseen issues. Areas for improvement include initial stakeholder involvement and QA testing.
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$25,000+$100 - $149 / hr50 - 249Miamisburg, OH
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See all 1 projectsSmart Data is a software development company specializing in transitioning legacy systems to modern technology stacks, with a focus on healthcare applications. They have been lauded for their agile development process and exemplary communication, as 100% of the feedback praises their developers' skill and professionalism. The project outcomes include successful software conversion with minimal downtime, enabling geographic and operational expansion.
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$10,000+$50 - $99 / hr50 - 249
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See all 1 projectsZologics Innovative Technologies is an IT company praised for its well-qualified team and effective project management. Receiving 100% positive feedback, all reviewers highlighted timely project delivery and quick responsiveness, with 10/10 ratings for their performance. Their combination of high ratings and cost-effective pricing was consistently noted as a decisive factor for selection.
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$50,000+$50 - $99 / hr10 - 49Bloomfield Hills, MI
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See all 5 projectsCivicSoft is a software development company specializing in tailored technology solutions, including cloud optimization, backend development, and analytics software enhancements. The reviews reflect overwhelmingly positive feedback, with 100% of clients praising their professionalism, communication, and ability to deliver high-quality products. Approximately 40% of reviewers emphasize CivicSoft's ability to provide personalized service and maintain strong client relationships, highlighting their commitment to client success.
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$1,000+$25 - $49 / hr10 - 49Navi Mumbai, India
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See all 2 projectsCentillion is a web development company highly praised for its professional approach and effective project management. With an 80% positive feedback rate, clients appreciate their enthusiasm and commitment to understanding clients' needs, though some suggest enhancing client communication with in-person meetings.
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$10,000+$25 - $49 / hr10 - 49Lviv, Ukraine
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See all 8 projectsCodeSeek is a versatile software development company that excels in web and mobile development, team augmentation, and custom software solutions. Analyzing their reviews, approximately 95% of feedback is positive, highlighting their strong technical expertise, exceptional communication, and commitment to quality. Reviewers frequently commend CodeSeek's ability to deliver projects on time, integrate seamlessly with existing teams, and adapt to evolving requirements, making them a reliable partner for complex projects.
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List of the Top 15 Legacy Modernization Services
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$25,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
35/40.019.6/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
35.3/40.018.8/20 Reviews10/10 Clients & Experience6.5/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
31.9/40.016.6/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.6/40.017.4/20 Reviews9.8/10 Clients & Experience4.4/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.3/40.015.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
38.1/40.020/20 Reviews10/10 Clients & Experience8.1/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
36.6/40.020/20 Reviews10/10 Clients & Experience6.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.2/40.015.8/20 Reviews10/10 Clients & Experience4.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$25,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
33.9/40.018.2/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
29.8/40.015.2/20 Reviews8.8/10 Clients & Experience5.9/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
35.7/40.020/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
31.1/40.016/20 Reviews10/10 Clients & Experience5.1/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
33/40.017.2/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
37/40.019.8/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
32.9/40.016.6/20 Reviews10/10 Clients & Experience6.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.7/40.016.8/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
34.3/40.019/20 Reviews10/10 Clients & Experience5.3/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
33.7/40.016.6/20 Reviews10/10 Clients & Experience7.1/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr250 - 999Unterschleißheim, Germany
Ability to deliver
32.2/40.017.2/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr10 - 49Farmington, MI
Ability to deliver
31.5/40.016.6/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34.1/40.018.4/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$150 - $199 / hr50 - 249
Ability to deliver
32/40.016.6/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.8/40.016.4/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$1,000+< $25 / hr50 - 249Jaipur, India
Ability to deliver
32.6/40.017.2/20 Reviews9.4/10 Clients & Experience6/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.5/40.016.6/20 Reviews10/10 Clients & Experience4.9/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
31.5/40.016.8/20 Reviews10/10 Clients & Experience4.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$250,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
33.3/40.017.6/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
31.5/40.016.2/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
31.4/40.016.4/20 Reviews9.8/10 Clients & Experience5.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other
Top App Modernization Agencies
App modernization companies upgrade, refactor, or re-platform legacy software so it performs like a modern, cloud-ready application. They begin by auditing the existing codebase, infrastructure, and business requirements, then create a roadmap that might include re-architecting monolithic apps into microservices, containerizing workloads, or migrating databases to scalable cloud environments. Their end goal is to improve performance, security, and maintainability while minimizing downtime.
Most firms deliver a mix of strategic and technical services, such as:
- Legacy code assessment and technical debt analysis
- Re-platforming (e.g., on-prem to AWS, Azure, or GCP)
- Code refactoring and re-architecting into microservices
- API enablement and containerization (Docker, Kubernetes)
- UI/UX refresh and mobile optimization
- Data migration, cleansing, and database modernization
- Ongoing maintenance, DevOps, and cloud cost optimization
Pricing varies widely depending on project scope, complexity, and the tech stack involved. Clutch data shows most engagements range from $50,000 to $500,000 overall, with hourly rates between $75 and $200. Lighter projects like a UI facelift or limited refactoring tend to fall near the lower end, while full re-architectures involving cloud migration, data overhaul, and strict compliance can exceed $1 million. Always request a detailed proposal that outlines costs for discovery, development, testing, and support.
When choosing the best right app modernization for your business, consider these:
- Review expertise: Look for case studies that mirror your tech stack (Java, .NET, PHP) and industry compliance needs.
- Check client feedback: Verified Clutch reviews reveal how the team communicates, hits deadlines, and handles setbacks.
- Evaluate methodology: A strong partner will propose a phased approach that includes assessment, pilot, and rollout stages, each with clear success metrics.
- Validate certifications: Cloud partnerships (AWS, Microsoft, Google) signal deep platform knowledge.
- Assess cultural fit: Long projects require easy communication, mutual trust, and shared time zones or overlap.
These are some of the red flags that you should watch for when hiring an app modernization company:
- Guaranteed timelines before an audit: Accurate estimates require a code and infrastructure review.
- Lack of documentation: If they won’t commit to architecture diagrams, test plans, or knowledge transfer, future maintenance may suffer.
- One-size-fits-all solutions: Forcing every project onto a single cloud or framework can indicate limited expertise.
- Poor security practices: Outdated OWASP knowledge or no DevSecOps pipeline is a deal-breaker for critical systems.
- Minimal client references: A reputable firm should readily provide recent, relevant references.
Here are some questions you can ask app modernization companies before hiring them:
- Which modernization strategies (rehost, refactor, re-architect) do you recommend for our stack, and why?
- Can you share success metrics from similar projects—e.g., performance gains or cost reductions?
- What is your approach to minimizing downtime during migration?
- How will you ensure code quality and security (tooling, peer reviews, automated testing)?
- What support and knowledge-transfer do you provide after launch?
- How do you handle scope changes and unforeseen legacy issues?
Partnering with specialists accelerates time-to-value. Experienced teams bring proven frameworks, automation toolchains, and cloud partnerships that help reduce risk and shorten migration windows. Businesses often benefit from faster performance, lower maintenance costs, improved security compliance, and easier feature releases, all without overburdening internal teams.
A freelancer may handle small refactoring tasks cost-effectively but often lacks the resources for large-scale audits, DevOps, and 24/7 support. Agencies provide multidisciplinary teams including architects, developers, QA specialists, DevOps engineers, and project managers who can deliver end-to-end transformations with enterprise-grade SLAs.