Top Application Modernization Services
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$10,000+$25 - $49 / hr10 - 49
Services provided
See all 1 projectsCodeFirst is a web development company praised for its agile methods and outstanding team. A review mentions that overall satisfaction with their platform is high, highlighting their flexibility and effective communication. With no areas for improvement noted, 100% of the feedback is positive, emphasizing their rigorous development standards and impressive developers.
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$10,000+$50 - $99 / hr10 - 49Sandton, South Africa
Services provided
See all 2 projectsAppstrax Technology is a software development company that specializes in building end-to-end web and mobile applications. Their clients consistently praise their professionalism and capacity to understand business visions, with 100% of reviews highlighting their flexibility and solid backend capabilities. While there are minor areas for improvement, such as clearer timeline expectations, they are highly regarded for their seamless project management and customer-focused approach.
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$1,000+< $25 / hr10 - 49Ha Noi, Vietnam
Services provided
See all 1 projectsTekify Co., Ltd is a versatile IT firm specializing in mobile and web app development and automation testing through staff augmentation. Their commitment to quality and clear communication is consistently praised, with 100% of reviewers highlighting their reliable delivery and effective project management. Clients appreciate their competitive pricing and high-quality outcomes, with no areas noted for improvement.
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$100,000+Undisclosed10 - 49McLean, VA
Services provided
LGNDX | The Product Innovation Studio is a prominent company specializing in UI/UX design, rapid prototyping, and custom software development for federal and government clients. Across reviews, they are praised for exceeding expectations, with no negative feedback reported. Their rigorous discovery process and strategic approach to product development have been highlighted by 100% of reviewers, emphasizing their commitment to delivering high-quality, user-centered solutions efficiently.
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$10,000+$50 - $99 / hr10 - 49Tallinn, Estonia
Services provided
See all 4 projectsApricusIT is a technology consulting and implementation company specializing in digital transformation, marketing automation, and cloud scaling solutions. The company is consistently praised for its professionalism, technical expertise, and effective communication, with notable client satisfaction in 100% of the reviews. Clients often commend ApricusIT's dedication to achieving business-oriented results and seamless integration of complex solutions.
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Undisclosed$25 - $49 / hr10 - 49Thiruvananthapuram, India
Services provided
Livares Technologies is a software development company known for their expertise in building scalable SaaS platforms. Reviews highlight their strong project management skills and alignment with client values, with 100% of feedback emphasizing customer satisfaction and operational efficiency. They are praised for their honesty and hardworking nature, with no significant areas for improvement noted.
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$10,000+$25 - $49 / hr50 - 249Bengaluru, India
Services provided
See all 4 projectsSomeshwara Software Pvt Ltd is a comprehensive software development company specializing in backend infrastructure, mobile gaming platforms, inventory control, and web applications. The company is praised for its robust, scalable solutions and responsive project management, with 100% of reviewers highlighting their technical skills and effective communication. While some suggest improvements in communication clarity, overall feedback is predominantly positive.
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$10,000+$100 - $149 / hr2 - 9Minneapolis, MN
Services provided
See all 1 projectsDieseinerdata is a software development company specializing in creating tailored cloud-based applications and integration solutions. Clients praise their ability to boost productivity and efficiency significantly, evidenced by a 60-fold increase in proposal generation speed. All reviews highlight their effective project management and exceptional communication, with 100% of feedback being positive and noting the absence of unnecessary complexities in their solutions.
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$5,000+$25 - $49 / hr2 - 9Kingston, Jamaica
Services provided
See all 1 projectsDCI Solutions is a software development company specializing in creating scalable, web-based applications for financial services. Review feedback indicates a strong emphasis on responsiveness and understanding of business needs, with 100% positive comments on their project management and communication. However, 100% of reviewers noted a need for improved documentation timeliness.
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$1,000+< $25 / hr10 - 49Gandhinagar, India
Services provided
See all 5 projectsRDFlex is an IT services company specializing in Odoo development and customization. Reviews indicate a mixed reputation; approximately 60% of feedback is positive, praising their flexibility, expertise, and project management, while about 40% highlight significant issues with communication and delivery timelines. Clients appreciate their technical proficiency but suggest improvements in commitment and responsiveness.
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$10,000+$50 - $99 / hr10 - 49
Services provided
See all 21 projectsProvelopers is a versatile software development firm specializing in AI solutions, mobile app development, and UI/UX design. They are praised for timely delivery, user-centric design, and innovative problem-solving, with 100% of clients noting high responsiveness and value for cost. Reviews report enhanced operational efficiency and user engagement, with notable increases in metrics such as conversion rates and operational efficiencies.
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$10,000+$50 - $99 / hr2 - 9
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See all 1 projectsXupe is a web and mobile app development company, known for its strategic input and collaborative project management. Receiving positive feedback, Xupe excels at adapting to client needs and offering valuable insights. While client expectation management could improve, 100% of clients appreciate their flexibility and strategic contributions.
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$5,000+$25 - $49 / hr10 - 49
Services provided
See all 2 projectsZuccotech is a development company specializing in building platforms, with expertise in both backend and frontend development, as well as QA testing. The company receives predominantly positive feedback, with over 90% of reviews highlighting satisfaction with quality, project management, and technical expertise, especially in blockchain and influencer marketing platforms. However, some reviewers have noted a need for improved communication skills and schedule flexibility.
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$5,000+$25 - $49 / hr2 - 9Punta del Este, Uruguay
Services provided
See all 1 projectsXenio is a machine learning development company praised for their strategic and execution capabilities, particularly in core technology projects. Reviews indicate strong communication skills, with 100% positive feedback highlighting their project management and ability to innovate. However, 20% of reviewers noted a language barrier, suggesting room for improvement in multilingual fluency.
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$5,000+$25 - $49 / hr2 - 9
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See all 1 projectsDrishna Technologies is a web application development company specializing in both frontend and backend technologies. Their team, including a CTO and multiple developers, receives highly positive feedback, with 100% of reviewers praising their energetic team and effective workflow. Clients appreciate their support, resulting in successful project completions.
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$25,000+$50 - $99 / hr10 - 49
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See all 2 projectsPropulsoft is a versatile technology company offering web design, software, and application development services. The reviews highlight their strong project management, creativity, and impressive price-quality ratio. Approximately 100% of reviewers praise their responsiveness, innovative ideas, and the quality of the deliverables, indicating high satisfaction with Propulsoft's work and professionalism.
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Undisclosed< $25 / hr2 - 9Chandigarh, India
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See all 3 projectsBLUSHING Technology is a digital marketing and web development company recognized for its exceptional design and project management skills. Clients commend the company for delivering high-quality work within budget, with 100% of reviewers highlighting timely delivery and effective communication. This firm is highly regarded for its ability to meet client expectations and provide good value for cost.
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$5,000+$300+ / hr50 - 249
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See all 49 projectsCloudInsta24 Services Private Limited is a network management and IT solutions provider, praised for its excellent customer support, timely delivery, and reliability. With 100% positive reviews, clients appreciate their cost-effective solutions and seamless network deployment. Notably, 100% of reviewers highlight efficient communication and high satisfaction with the services provided.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsDevs Dynasty is a software development company specializing in mobile app and web service creation with a strong emphasis on AI integration. Their reviews reflect positive feedback, with over 90% of users engaging with their AI chatbot daily and a 78% improvement in customer support efficiency. Clients commend their project management, timely delivery, clear communication, and adaptability to changing requirements.
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$5,000+$50 - $99 / hr10 - 49
Services provided
See all 2 projectsDEIP is a company specializing in blockchain solutions, providing secure, scalable, and customizable platforms for projects requiring transparency and efficiency, especially in R&D and intellectual property management. Reviewers consistently commend DEIP's flexibility, technological capabilities, and effective project management, with 100% noting their impactful platform structure and potential cost savings. However, suggestions for improvement include expanding their customer base and team.
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$25,000+Undisclosed10 - 49
Services provided
See all 4 projectsCoretec Inc. is a versatile software development company, providing services such as web and app development, backend upgrades, and custom platform creation. The majority of feedback is positive, with approximately 90% of reviewers praising their communication, professionalism, and timely delivery. Clients appreciate their flexible, client-focused approach, though some note challenges with onboarding due to rapid growth.
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$5,000+$50 - $99 / hr2 - 9Milano, Italy
Services provided
See all 4 projectsKoent is a versatile technology solutions provider specializing in mobile app development and software modernization. Reviews highlight their strong project management skills and commitment to understanding client needs, with an exemplary customer engagement rate and timely delivery. Approximately 90% of reviewers commend Koent's effort to tailor solutions to specific business processes, though some desired more in-person meetings.
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$1,000+< $25 / hr2 - 9
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See all 2 projectsZTABS is a software development company specializing in designing and implementing complex web platforms and systems. They have received highly positive feedback for their work, with notable praise for their effective project management and clear communication, mentioned in 100% of reviews. Clients appreciate their availability, quick delivery, and the ability to accommodate dynamic project needs, although some suggest improvements in collaborative design tools.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsTHINQPIXEL LLP is a web development company specializing in online visibility, website development, and payment processing solutions. The feedback from their reviews is overwhelmingly positive, with clients praising their prompt, round-the-clock support and exceptional project management. Approximately 100% of reviewers highlight their responsiveness and dedication to client success.
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$50,000+$50 - $99 / hr10 - 49Brooklyn, NY
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See all 1 projectsNext Horizon Tech Solutions is a custom software development company known for its efficiency and capability to understand client requirements thoroughly. The company successfully delivered a project that significantly improved workflow efficiency, reducing task time by 50%. With a 100% positive feedback rating highlighting their effective project management and proactive communication, clients recommend clearly articulating requirements for optimal results.
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$5,000+< $25 / hr10 - 49
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See all 5 projectsNPS SOFTWARES LLP is an information technology company specializing in Salesforce resources, AI automation, Health Cloud, and mobile app development. Reviews indicate a 100% positive sentiment, with clients praising their professionalism, timely delivery, and technological expertise, with 100% of reviewers highlighting their reliable and skilled team.
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$5,000+$25 - $49 / hr2 - 9
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See all 1 projectsCOPODS DESIGN TECHNOLOGY SOLUTIONS LLP is a UI/UX design company known for its thorough discovery process and collaborative approach. Reviewers highlight their expertise, with 100% of feedback expressing satisfaction with their project management and design execution. They are commended for their entrepreneurial mindset and ability to provide honest feedback.
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$10,000+$25 - $49 / hr10 - 49ঢাকা, Bangladesh
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See all 4 projectsInfocrat Solutions Limited is a company specializing in customized ERP solutions, particularly for the textile and apparel industries. Across their reviews, clients commend their customer-focused approach, technical expertise, and professional project management. About 90% of feedback is positive, highlighting their commitment to timely delivery and post-deployment support. However, there are suggestions for enhancing user documentation and integrating advanced technologies.
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UndisclosedUndisclosedFreelancerLee's Summit, MO
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See all 1 projectsTranscendent Software is a consulting firm specializing in providing advice and solutions for prototype development, patent research, and strategic project direction. The company has received 100% positive feedback, with clients praising their honesty, straightforward communication, punctuality, and excellent value. All reviewers emphasized their satisfaction with the service and timely problem-solving capabilities.
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Undisclosed$150 - $199 / hr10 - 49Jacksonville, FL
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See all 5 projectsfeature[23] is a versatile software development company specializing in creating custom applications and systems across various industries. The reviews highlight their technical expertise, with 100% of reviewers praising their ability to re-engineer and modernize existing platforms. Clients appreciate their flexibility and proactive project management, noting a strong focus on understanding client needs and integrating with existing operations. Overall, feature[23] is recognized for delivering high-quality, reliable solutions and maintaining excellent client relationships.
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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.