Top Application Modernization Services
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$10,000+$150 - $199 / hr2 - 9
Services provided
See all 1 projectsJoen.io is a development company known for creating interactive applications, with a notable focus on mobile app development. Reviews highlight their professionalism, with 100% positive feedback regarding their capability to deliver complex projects effectively, such as a feature-rich pet adoption app. Clients appreciate their transparent communication and the ability to meet deadlines, though there is a suggestion for more robust project management.
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$5,000+$25 - $49 / hr10 - 49Parramatta, Australia
Services provided
See all 4 projectsSavvient Technologies is an app development company specializing in iOS and Android solutions, utilizing .NET and Xamarin frameworks. Reviews highlight their effective communication and proactive issue resolution, with 100% of feedback being positive. Clients appreciate their clear communication, though improvements in bug logging processes are suggested.
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$25,000+$50 - $99 / hr10 - 49
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See all 1 projectsWesence is a software development company specializing in frontend solutions for B2B SaaS platforms. The company received 100% positive feedback, with clients praising their flexibility, responsiveness, and ability to exceed expectations. In one notable project, they successfully developed 120 training modules, surpassing the initial target of 100.
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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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$5,000+$100 - $149 / hr10 - 49
Services provided
See all 4 projectsBlue Shark Solution Inc. is a versatile digital agency providing web development and strategic IT solutions. Feedback from their clients is overwhelmingly positive, with 100% of reviews praising their project management, timely delivery, and cost-effective services. Clients consistently highlight their professional communication and expertise, with 75% specifically noting the impressive skills of the founder during project execution.
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$10,000+$50 - $99 / hr10 - 49San Francisco, CA
Services provided
See all 1 projectsStreamline Social is a company specializing in enhancing user interfaces for mobile applications. The overall feedback is positive, with clients appreciating their resourcefulness and willingness to explore solutions. However, 100% of reviewers mentioned a desire for faster project completion, indicating an area for potential improvement.
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$50,000+$100 - $149 / hr10 - 49
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See all 1 projectsSilicon Valley Insight is a custom software development company specializing in creating complex software solutions, such as quiz software with advanced backend systems. Reviews highlight their proactive communication and ability to exceed expectations, with 100% positive feedback on their responsiveness and problem-solving skills. Clients appreciate their expertise in technologies like Heroku and GitHub, and their high level of understanding in project development.
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$25,000+$25 - $49 / hr50 - 249
Services provided
See all 31 projectsRewiSoft is a mobile app development company known for delivering user-centric designs and effective e-commerce solutions. The company received positive feedback for its technical proficiency and ability to enhance user engagement, with 100% of reviewers praising these aspects. Their timely delivery and clear communication were also commended, though some suggested more frequent progress updates would be beneficial.
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$25,000+$25 - $49 / hr50 - 249Chennai, India
Services provided
See all 7 projects10decoders is a versatile IT consulting and development company specializing in software development, cloud services, and staff augmentation across various technologies. The reviews reveal a high level of satisfaction, with over 80% of clients praising their professionalism, technical expertise, and commitment to deadlines. Some feedback suggests improvement in employee turnover and communication could enhance their services further. Overall, 10decoders is positively regarded for exceeding expectations and delivering quality results.
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$25,000+$25 - $49 / hr50 - 249Gurugram, India
Services provided
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
Services provided
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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$5,000+$25 - $49 / hr10 - 49Noida, India
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See all 2 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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$25,000+$25 - $49 / hr10 - 49Budapest, Hungary
Services provided
See all 8 projectsR-Szoft Ltd. is a dynamic software development and IT services company, excelling in custom software solutions, system integration, and testing. The company consistently receives positive feedback, with 100% of reviewers praising their professionalism, agile project management, and timely delivery. Clients commend their flexibility, proactive communication, and collaboration with existing teams, making R-Szoft Ltd. a reliable partner for complex projects.
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$25,000+Undisclosed50 - 249Surat, India
Services provided
See all 2 projectsTriveni Global Software Services LLP is a versatile web development company known for integrating graphics, web development, and marketing. They have received positive feedback from 100% of reviewers, highlighting their responsiveness, timely delivery, and strong cultural fit. Clients appreciate their budget-friendly pricing and impressive company values.
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$1,000+$25 - $49 / hr10 - 49
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See all 2 projectsToD Technologies is a web development company specializing in creating modern, user-friendly, and performance-driven websites with a focus on UI/UX design, mobile responsiveness, and SEO optimization. With 100% positive feedback, reviewers consistently praise their technical expertise, proactive communication, and strategic partnership approach, highlighting their ability to deliver on time and within budget while enhancing client business objectives.
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$10,000+$100 - $149 / hr2 - 9
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See all 1 projectsLunis Design Lab is a UX/UI design company specializing in redesigning SaaS applications and enhancing design systems. They have garnered 100% positive feedback, with clients praising their smooth communication, timely delivery, and quality design work. Their services have resulted in improved user satisfaction and increased revenue for their clients.
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$25,000+$100 - $149 / hr2 - 9Phoenix, AZ
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See all 4 projectsVelocity Labs is a software development company specializing in creating and maintaining custom applications and platforms using Ruby on Rails. Across their reviews, 100% of the feedback is positive, highlighting their reliability, innovation, and effective project management. Clients commend them for delivering high-quality solutions and having a strong communication process, with 75% of reviews noting their impressive problem-solving capabilities.
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$1,000+$100 - $149 / hr2 - 9İstanbul, Türkiye
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See all 1 projectsBixcod Software and Consulting is a software development company known for delivering exceptional service in Turkey. They have positively impacted client businesses, as evidenced by one client's 85% sales increase post-project. Reviewers consistently highlight their effective communication and thorough project execution, resulting in unanimously positive feedback.
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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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$5,000+$25 - $49 / hr10 - 49Delhi, India
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See all 2 projectsMomenttext AI is a technology company specializing in AI and machine learning solutions, particularly in natural language processing and computer vision. Reviews highlight their expertise, dedication, and seamless integration with client teams, leading to successful deployments. 100% of feedback was positive, emphasizing timely delivery and effective communication, though it's noted they should scale for handling multiple projects concurrently.
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$5,000+$50 - $99 / hr10 - 49Paramus, NJ
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See all 3 projectsArya57 LLC is a versatile development company specializing in chat and SMS platform integration and website design and maintenance. Clients consistently praise their responsiveness, flexibility, and project management skills, highlighting their ability to exceed expectations and deliver professional results without any delays. Approximately 100% of reviewers commend their ability to meet requirements and provide valuable insights for project success.
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Undisclosed< $25 / hr10 - 49Khammam, India
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See all 2 projectsNeoistone is a versatile technology company specializing in website and app development, SEO, and digital marketing services. The company has received overwhelmingly positive feedback, with clients praising their excellent service, timely delivery, and effective project management. A notable 90% quality rating underscores their proficiency in addressing various development and marketing needs.
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$5,000+$50 - $99 / hr2 - 9Bengaluru, India
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See all 10 projectsKUMOHQ is a software development company that specializes in building custom web and mobile applications. Reviews highlight their professionalism, timely delivery, and ability to navigate challenges effectively, with 100% of feedback being positive. They are commended for their excellent communication, cultural alignment, and dedication to going above and beyond for their clients.
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$5,000+$50 - $99 / hr10 - 49Prague, Czech Republic
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See all 3 projectsBlocshop is a software development firm known for its expertise in creating secure data management architectures and innovative ERP solutions. The company is praised for its agile development methods, delivering projects on time and within budget, and maintaining a high level of customer satisfaction. With 100% positive reviews, clients highlight the team's dedication, creativity, and ability to provide valuable, tailored solutions.
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$1,000+< $25 / hr10 - 49
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See all 2 projectsSpikeway Technologies is a web development company known for designing and building robust portals, with a focus on B2B and B2C solutions. The company received positive feedback for its structured project management and on-time delivery, with 100% of reviewers praising their professional, interactive team and uncompromising service quality.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsICT Information Technologies is an IT services company specializing in automating and managing user demands, providing first and second-level IT support. The overall feedback is highly positive, with clients reporting a 50% increase in demand management speed and improved customer satisfaction. Reviewers consistently highlight their excellent project management and communication skills, with no significant areas for improvement mentioned.
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$5,000+< $25 / hr10 - 49
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See all 2 projectsVillage IT Services Private Limited is a development company providing comprehensive solutions for mobile apps and websites, including real-time databases, UI/UX design, and backend services. The reviews indicate a high level of satisfaction, with clients praising their adaptability, technical skills, and communication. Approximately 90% of the feedback is positive, highlighting their ability to scale resources and deliver quality work. However, there is a suggestion for improved quality assurance capabilities.
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$25,000+$50 - $99 / hr10 - 49Florianópolis, Brazil
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See all 2 projectsJungsoft is a technology services company specializing in UX design, backend development, and system integration. They have received overwhelmingly positive feedback, with 100% of reviewers praising their creativity, efficiency, and the exceptional quality of their deliverables. Clients commend their ability to deliver complex projects promptly and appreciate their collaborative and enjoyable work sessions.
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$10,000+$50 - $99 / hr10 - 49Kyiv, Ukraine
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See all 2 projectsSytecs, LLC is a cloud solutions provider renowned for its expertise in integrating MS Azure cloud services and SAP systems. Of their reviews, 100% reflect positive feedback, highlighting their exceptional project management, adaptability, and stakeholder engagement. Clients appreciate Sytecs' ability to overcome obstacles with innovative solutions, marking them as a reliable and highly professional partner in delivering tailored digital solutions.
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$1,000+$150 - $199 / hr2 - 9Nashua, NH
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See all 2 projectsAmbit Logic LLC is a digital services company specializing in website maintenance, marketing, and brand consultation. Feedback from clients is overwhelmingly positive, with 100% of reviewers highlighting their professional, proactive approach and fast project delivery. Clients commend the company for clear communication and effective SEO strategies, although a more structured onboarding process could enhance the experience further.
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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
35.8/40.020/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr1,000 - 9,999New York, NY
Ability to deliver
37.8/40.020/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$100,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
34.7/40.019/20 Reviews10/10 Clients & Experience5.7/10 Market PresenceService focus
25% Enterprise App Modernization75% Other -
$10,000+$25 - $49 / hr1,000 - 9,999Southborough, MA
Ability to deliver
32.1/40.016.6/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
34/40.018.8/20 Reviews10/10 Clients & Experience5.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999Wrocław, Poland
Ability to deliver
31.6/40.015.8/20 Reviews10/10 Clients & Experience5.8/10 Market PresenceService focus
40% Enterprise App Modernization60% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
31.3/40.017.8/20 Reviews9.8/10 Clients & Experience3.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$10,000+$50 - $99 / hr250 - 999Sacramento, CA
Ability to deliver
30.8/40.016.4/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
80% Enterprise App Modernization20% Other -
$5,000+< $25 / hr1,000 - 9,999
Ability to deliver
30.7/40.016.2/20 Reviews10/10 Clients & Experience4.5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$100,000+$50 - $99 / hr1,000 - 9,999Oakland, CA
Ability to deliver
30.5/40.015.2/20 Reviews8.8/10 Clients & Experience6.6/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$25,000+$25 - $49 / hr50 - 249Agoura Hills, CA
Ability to deliver
36.4/40.020/20 Reviews10/10 Clients & Experience6.4/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249București, Romania
Ability to deliver
33.3/40.019.6/20 Reviews10/10 Clients & Experience3.7/10 Market PresenceService focus
35% Enterprise App Modernization65% Other -
$100,000+$150 - $199 / hr50 - 249Southborough, MA
Ability to deliver
30.1/40.015.8/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$10,000+$25 - $49 / hr250 - 999Beijing, China
Ability to deliver
35.4/40.019.6/20 Reviews9.1/10 Clients & Experience6.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
35.6/40.020/20 Reviews10/10 Clients & Experience5.6/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
33.5/40.017.2/20 Reviews9.8/10 Clients & Experience6.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$150 - $199 / hr10 - 49Littleton, CO
Ability to deliver
31.8/40.017.6/20 Reviews10/10 Clients & Experience4.2/10 Market PresenceService focus
45% Enterprise App Modernization55% Other -
$1,000+< $25 / hr250 - 999Hanoi, Vietnam
Ability to deliver
34.8/40.017/20 Reviews9.7/10 Clients & Experience8/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$25,000+$150 - $199 / hr50 - 249Claymont, DE
Ability to deliver
33.3/40.016.6/20 Reviews10/10 Clients & Experience6.7/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
37.2/40.020/20 Reviews10/10 Clients & Experience7.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
Ability to deliver
35.2/40.019/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Atlanta, GA
Ability to deliver
32.3/40.016.8/20 Reviews10/10 Clients & Experience5.5/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
34/40.017.8/20 Reviews10/10 Clients & Experience6.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$5,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
31.6/40.016.6/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$100 - $149 / hr10 - 49Costa Mesa, CA
Ability to deliver
32.6/40.018.6/20 Reviews10/10 Clients & Experience4/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
31.5/40.017.2/20 Reviews10/10 Clients & Experience4.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr1,000 - 9,999São Paulo, Brazil
Ability to deliver
33.4/40.016.6/20 Reviews9.9/10 Clients & Experience7/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
31.4/40.016.4/20 Reviews10/10 Clients & Experience5/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$50,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
28.2/40.016.2/20 Reviews7.8/10 Clients & Experience4.2/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Kropyvnytskyi, Ukraine
Ability to deliver
34.2/40.018.8/20 Reviews10/10 Clients & Experience5.4/10 Market PresenceService focus
10% Enterprise App Modernization90% 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.