Top Application Modernization Services
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$10,000+$50 - $99 / hr2 - 9Bratislava, Slovakia
Services provided
See all 3 projectsJAVI solutions is a software development company specializing in creating and maintaining customized systems, such as invoicing and ERP solutions. Reviewers consistently praise their dedication, responsiveness, and ability to meet client needs, with 100% positive feedback on their commitment and problem-solving skills. While some note occasional delays, they've demonstrated consistent improvement in project delivery timelines.
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$5,000+$50 - $99 / hr10 - 49
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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+$25 - $49 / hr50 - 249Ahmedabad, India
Services provided
See all 4 projectsAIXTOR Technologies is a versatile IT services company specializing in website development, SharePoint portals, and Liferay-based solutions. The company is praised for its project management, technical expertise, and customer-centric approach. Approximately 100% of the reviews highlight timely delivery, professionalism, and tailored solutions. While mostly positive, one review suggests improvement in documentation clarity and internal policies.
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$25,000+$150 - $199 / hr10 - 49
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See all 2 projectsinoutput is a development agency specializing in software and app development, offering robust project management services. Reviews indicate a high level of satisfaction with their technical and project management capabilities, with 90% of feedback noting timely delivery and transparency. However, feedback from a dance community noted initial communication challenges, which were reportedly addressed in subsequent stages.
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$1,000+$25 - $49 / hr2 - 9Rabat, Morocco
Services provided
See all 6 projectsCode Studio is a web development company specializing in creating custom solutions using technologies such as Webflow, React, and Vue.js. The reviews for Code Studio are overwhelmingly positive, with clients praising their responsiveness, expertise, and ability to deliver high-quality projects within budget and timelines. Around 80% of reviewers commend their communicative and problem-solving approach, highlighting their impressive flexibility and client-oriented service.
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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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$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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$10,000+$50 - $99 / hr2 - 9Plovdiv, Bulgaria
Services provided
See all 1 projectsSkillAbility Soft Ltd. specializes in creating and integrating patient engagement and dental practice management software. Reviews highlight their exceptional communication and timely delivery, with all projects completed ahead of schedule. Impressively, 100% of reviewers commend their experience and dedication, although there's a note on setting work-hour boundaries. Overall, SkillAbility Soft Ltd. maintains a strong reputation for meeting client objectives effectively.
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$5,000+$25 - $49 / hr10 - 49Noida, India
Services provided
See all 1 projectsBlokMiners is a blockchain development company recognized for its expertise in creating secure and scalable blockchain solutions, such as real estate tokenization platforms. The reviews reflect a positive sentiment, with 100% of the feedback highlighting their strong technical understanding and practical approach. Clients commend BlokMiners' responsiveness, flexibility, and professional project management, though more detailed documentation could enhance the experience for non-technical stakeholders.
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$10,000+$50 - $99 / hr10 - 49
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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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$1,000+< $25 / hr10 - 49Surat, India
Services provided
See all 2 projectsTechnomargin is a front-end development company that specializes in transforming Figma prototypes into functional websites. Based on client reviews, 100% of the feedback highlights their professionalism, patience, and ethical approach. While all clients were satisfied with the deliverables, some noted that faster delivery could be an area for improvement.
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$5,000+< $25 / hr10 - 49Chennai, India
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See all 2 projectsYsquare Technology is a versatile web and mobile development company known for its customer-centric approach and technical expertise. They excel in project management, consistently meeting deadlines and effectively collaborating with clients. With positive feedback from clients such as ShortCode Technologies and WEGoT Utility Solutions, Ysquare Technology maintains a strong reputation, with approximately 100% of reviewers highlighting their flexibility and effective leadership.
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$100,000+$50 - $99 / hr10 - 49Austin, TX
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See all 2 projectsCalavista Software is a software development company specializing in creating enterprise-level SaaS platforms. The reviews reveal a consistent theme of exceptional project management and seamless communication, with 100% positive feedback highlighting their flexibility, commitment to deadlines, and proactive problem-solving. Reviewers appreciate their ability to adapt to changes and provide valuable support beyond the initial scope of work.
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$5,000+$25 - $49 / hr10 - 49Wrocław, Poland
Services provided
See all 6 projectsDevqube is a versatile IT services company offering expertise in web and mobile app development, database management, and software maintenance. With a satisfaction rate exceeding 95%, clients commend their efficiency, flexibility, and proactive approach to communication and problem-solving. A notable 80% of reviews highlight Devqube's ability to deliver complex solutions on tight schedules, underscoring their technical competence and customer-oriented service.
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Undisclosed$150 - $199 / hr10 - 49Jacksonville, FL
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See all 5 projectsfeature[23] is a software development company known for building complex applications and providing strategic technological solutions. Reviews indicate a high satisfaction rate, with approximately 90% of feedback emphasizing their technical expertise and adaptability. Clients praise their project management skills and effective communication, with frequent acknowledgment of their ability to blend innovative engineering solutions with business needs. Overall, feature[23] is highly recommended for its reliability and contributions to client success.
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UndisclosedUndisclosed10 - 49
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See all 1 projectsGlobal Infonet is a comprehensive IT solutions provider specializing in content management system implementations and website redesigns. The reviews highlight their meticulous approach, strategic planning, and thorough execution, with 100% of feedback being positive, emphasizing their accessibility and comprehensive backend capabilities. Clients commend their ability to create dynamic and interactive solutions that enhance content management efficiency.
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$5,000+$50 - $99 / hr10 - 49Budapest, Hungary
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See all 1 projectsExalt Interactive is a design company specializing in user experience and interface design. They have consistently delivered high-quality work on time, as highlighted by positive feedback from most clients, though some preferred previous designs. Their adaptability to client feedback and effective project management are notable, with 100% of reviews mentioning their punctuality and responsiveness.
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Undisclosed$25 - $49 / hr10 - 49Dhaka, Bangladesh
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See all 5 projectsInvento Software Limited is a versatile software development company specializing in supply chain traceability, ERP solutions, and website design. The company consistently receives positive feedback for its attention to detail, professionalism, and responsiveness, with 100% of reviewers reporting satisfaction with project outcomes and timely delivery. Clients also appreciate their alignment with company values and cost-effective solutions.
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$10,000+$25 - $49 / hr10 - 49Lviv, Ukraine
Services provided
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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$75,000+Undisclosed10 - 49L'viv, Ukraine
Services provided
See all 5 projectsAimtraction is a software development company specializing in full-cycle development and Angular expertise for diverse project needs, such as AI-powered platforms and integrated solutions. Across reviews, the company is praised for its proactive communication and strategic thinking, with 100% of reviewers noting their strong engagement and adaptability. Approximately 90% of users express satisfaction with their timely delivery and commitment 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 specializing in creating tailored solutions for businesses. They are highly efficient, with 100% of reviewers noting their ability to save time and meet client needs. Their proactive project management and attention to detail ensure a seamless experience for clients seeking comprehensive software solutions.
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$5,000+$25 - $49 / hr50 - 249Lahore, Pakistan
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See all 2 projectsStrategistHub is a software development company known for its effective project management and responsiveness. Reviews highlight the company's alignment with client values and budget, with 100% of clients noting prompt communication and flexibility in handling project changes. While design aspects were noted as an area for potential improvement, StrategistHub's overall service was described as impeccable.
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$1,000+$25 - $49 / hr50 - 249
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See all 5 projectsXenon Apps is a custom mobile application development company, praised for delivering user-friendly and innovative apps. The reviews highlight a remarkable 100% satisfaction rate, with clients commending their timely delivery, project management, and ability to turn ideas into functional applications. However, some feedback suggests potential for enhancing creative features to further captivate users.
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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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$1,000+$50 - $99 / hr2 - 9København, Denmark
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See all 1 projectsFifium is a web development company specializing in building comprehensive websites tailored to clients' branding needs. Reviews highlight their strong project management skills and effective communication, with 100% of reviewers acknowledging their fair pricing and responsiveness. Despite some ongoing projects, clients appreciate the balance between quality and cost provided by Fifium.
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$10,000+$50 - $99 / hr2 - 9
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See all 1 projectsXupe is a web app development company that excels in creating tailored digital solutions, with a focus on UI/UX design. The company is praised for its strategic input and collaborative project management, with 100% of reviewers highlighting their valuable contributions and adaptability. While some noted initial challenges in managing client expectations, the overall feedback is positive.
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$25,000+$25 - $49 / hr50 - 249Gurugram, India
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See all 3 projectsOTS Solutions is an application development company that provides comprehensive services from concept design to implementation. Most clients highlight the team's professionalism and collaborative spirit, with 100% of the reviews commending their project management and ability to deliver functional solutions. Some language and communication challenges were noted due to geographical differences, but they were effectively resolved.
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$10,000+< $25 / hr50 - 249Pune, India
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See all 3 projectsQuicSolv Solutions is a versatile software development company, offering services in app development, software solutions, and platform building across diverse industries. The reviews are overwhelmingly positive, highlighting their robust project management skills, adaptability, and commitment to staying within budget. Clients commend their technical proficiency and personalized customer service, with 100% of reviewers noting their effective communication and project management.
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$1,000+$25 - $49 / hr2 - 9Jakarta, Indonesia
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See all 1 projectsDelos is a web development company known for delivering reliable and timely services, including website development and maintenance. They have received positive feedback for their on-time delivery and quick issue resolution, with 100% of reviewers highlighting their efficiency and reliability in communication and support.
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$5,000+$25 - $49 / hr2 - 9Punta del Este, Uruguay
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See all 1 projectsXenio is a machine learning development company known for its strategic and execution capabilities, particularly in core tech development. Reviews highlight Xenio's excellent communication and cooperation, with 100% of reviewers praising their unique approach and project management skills. While some noted a language barrier, clients appreciated their ability to deliver innovative solutions swiftly.
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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
39.3/40.019.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
39.1/40.020/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
35.9/40.016.6/20 Reviews10/10 Clients & Experience9.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
35.4/40.015.8/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
37.2/40.017.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
34.2/40.016.4/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$25,000+$25 - $49 / hr250 - 999Jaipur, India
Ability to deliver
38/40.018.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
34/40.015.2/20 Reviews8.8/10 Clients & Experience10/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
39.9/40.020/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
33.8/40.018.2/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
37.2/40.017.2/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
35.9/40.020/20 Reviews10/10 Clients & Experience5.9/10 Market PresenceService focus
35% Enterprise App Modernization65% Other -
$10,000+< $25 / hr250 - 999Ahmedabad, India
Ability to deliver
39.7/40.020/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
38.7/40.019/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
36.6/40.016.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
Undisclosed$150 - $199 / hr250 - 999London, England
Ability to deliver
36.4/40.017.2/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.3/40.018.4/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
32.2/40.015.8/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$50,000+$150 - $199 / hr50 - 249Conshohocken, PA
Ability to deliver
36/40.016.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
38.9/40.019.2/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
35.8/40.016.4/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
36.8/40.018/20 Reviews10/10 Clients & Experience8.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
Undisclosed$25 - $49 / hr250 - 999Toronto, Canada
Ability to deliver
37.1/40.017.2/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.6/40.019.8/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Houston, TX
Ability to deliver
39.6/40.020/20 Reviews10/10 Clients & Experience9.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35.6/40.017.6/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
Undisclosed$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
36.8/40.020/20 Reviews7.2/10 Clients & Experience9.6/10 Market PresenceService focus
15% Enterprise App Modernization85% 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.