Top Application Modernization Services
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$25,000+$25 - $49 / hr50 - 249Bengaluru, India
Services provided
See all 7 projectsFocaloid Technologies is a versatile software development company specializing in mobile app and web platform development. Reviews indicate a high level of customer satisfaction, with approximately 90% of feedback highlighting their professionalism, flexibility, and commitment to client success. Clients appreciate their transparent communication and cost-effectiveness, with multiple reviewers praising their ability to adapt to changing requirements and deliver innovative solutions.
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$5,000+$50 - $99 / hr50 - 249Warszawa, Poland
Services provided
See all 3 projectsSavangard is a technology solutions company specializing in identity and access management, electronic workflow systems, and payment infrastructure. Overall, they receive positive feedback, with clients praising their technical expertise, communication, and project management. Approximately 100% of reviewers highlight their professional approach and timely delivery, with no significant areas for improvement mentioned.
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$1,000+$25 - $49 / hr10 - 49Lungsod Quezon, Philippines
Services provided
See all 1 projectsDecode Technologies is a technology solutions company specializing in AI chatbot and CRM system development. Overall feedback highlights their efficiency and professionalism, with 100% of reviews noting their impact on operational efficiency and candidate experience. The company is praised for fast responses and timely delivery, with no areas for improvement mentioned.
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$10,000+$50 - $99 / hr50 - 249Lahore, Pakistan
Services provided
See all 7 projectsBearPlex is a software development and web design company highly praised for their innovative and responsive solutions across various industries. They consistently deliver projects on time, with over 95% of reviewers noting improved website performance and increased user engagement. While some suggest enhancing communication and documentation processes, BearPlex is lauded for its creativity, understanding of clients' needs, and effective project management.
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Undisclosed$25 - $49 / hr2 - 9Mumbai, India
Services provided
See all 5 projectsVirtual Splat Software Pvt. Ltd. is a custom software development company specializing in ERP systems and CRM modules. The company is praised for its knowledgeable team, effective project management, and timely delivery, with over 90% of reviewers highlighting their technical expertise and dedication. Some reviews suggest improvements in documentation and team expansion.
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$25,000+$150 - $199 / hr10 - 49St. Louis, MO
Services provided
See all 1 projectsAlliance Systems is a web development company renowned for its sophisticated and flexible solutions. Reviews highlight their exceptional project management skills and ability to adapt to client needs, with 100% of feedback being positive. Clients praise their ability to enhance sales significantly and appreciate their fair pricing and organized approach.
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$5,000+$25 - $49 / hr50 - 249Kakkanad, India
Services provided
See all 18 projectsSayOne Technologies is a software development company specializing in custom solutions utilizing technologies such as Python, Django, and cloud services. They are highly regarded for their scalability, timely delivery, and effective communication, with a 100% positive feedback rate for their responsiveness and quality of work. Their expertise is notably appreciated in handling complex projects with a hands-on and collaborative approach.
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$25,000+$25 - $49 / hr10 - 49Yerevan, Armenia
Services provided
See all 3 projectsCodeInno is a software development company specializing in creating customized digital solutions, including project management platforms and web applications. Their clients consistently praise their exceptional project management skills, flexibility in communication, and ability to deliver innovative and high-quality results. Approximately 100% of the reviews highlight CodeInno's dedication to understanding client needs and implementing effective solutions that align with their goals.
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$5,000+$150 - $199 / hr10 - 49Vienna, VA
Services provided
See all 1 projectsAtigro is a branding and communication agency known for crafting clear and impactful narratives, particularly in complex fields. The reviews highlight a seamless collaboration process and an ability to distill complex ideas into concise messaging, with 100% of feedback reflecting positive experiences. Clients commend Atigro's personalized approach and deep understanding of branding challenges, although there's a suggestion for clearer service segmentation.
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$25,000+$50 - $99 / hr10 - 49Poznań, Poland
Services provided
See all 7 projectsThe BitByBit Company is a versatile software development firm specializing in mobile and web application solutions for a range of fields, including academic research, civic engagement, and healthcare. Reviewers consistently highlight the company's rapid delivery, meticulous attention to client requirements, and exceptional project management, with more than 80% praising their problem-solving and communication skills. Many clients appreciate their ability to transform complex concepts into practical applications efficiently.
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$50,000+$50 - $99 / hr10 - 49Timișoara, Romania
Services provided
See all 1 projects[e-spres-oh] is a software development company known for integrating seamlessly into existing teams to enhance development velocity, particularly using Ruby on Rails. With 100% positive feedback, clients praise their strategic involvement beyond technical tasks. Their commitment to resolving issues and proactive communication through Slack and other tools is highly appreciated.
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$10,000+$50 - $99 / hr10 - 49
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See all 1 projectsWBPRO LLC is an app development company known for its expertise in PHP and other database technologies, offering ongoing support and new feature development. Their project management prowess, flexibility, and industry knowledge have earned them positive feedback, with 100% of reviewers praising their accessibility and adaptability to project changes.
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$50,000+$150 - $199 / hr10 - 49Birmingham, AL
Services provided
See all 1 projectsSigao is a web development company specializing in creating tailored solutions for specific industry needs, such as a video conferencing platform for speech-language pathologists. Reviewers consistently praise their communication skills and reliability, with 100% of feedback highlighting their ability to meet deadlines and accommodate last-minute changes effectively. Clients appreciate Sigao's collaborative approach and transparency throughout the development process.
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$10,000+$50 - $99 / hr10 - 49Kraków, Poland
Services provided
See all 10 projectsScore Digital is a versatile software development company specializing in custom mobile and web applications, often using technologies like React Native and Flutter. Reviews indicate a strong emphasis on communication and project management, with approximately 85% of clients praising their responsiveness and ability to meet deadlines. While some reviewers mention the high cost, 90% appreciate the value and quality delivered, with particular commendation for their end-to-end development expertise and problem-solving capabilities.
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UndisclosedUndisclosed50 - 249Wrocław, Poland
Services provided
See all 4 projectsAvra Software is a proficient software development company specializing in Java, Spring, and REST technologies, among others. With a history of delivering high-quality solutions for various industries, Avra is noted for its innovative approach and adaptability, resulting in successful projects and ongoing relationships. Approximately 100% of reviewers highlight Avra’s reliability, technical expertise, and effective project management, reflecting a strong customer satisfaction rate.
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$5,000+$25 - $49 / hr10 - 49
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See all 2 projectsElanine Creatives is a web development firm praised for its strategic implementation and exceptional project management skills. All reviews reflect positive feedback, highlighting their efficiency and partnership-oriented approach. Impressively, 100% of reviewers commend their proactive collaboration and dedication, resulting in enhanced community engagement and operational efficiency.
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$10,000+$25 - $49 / hr2 - 9
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See all 2 projectsBits Nexus is a software development company specializing in creating and deploying complex applications with robust infrastructure to support multiple users. They receive overwhelmingly positive feedback, with clients praising their proactive improvements, timely delivery, and knowledgeable leadership. Approximately 100% of the reviewers highlight their effective project management and the high quality of their deliverables, making them a reliable partner for technology-driven projects.
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$50,000+$50 - $99 / hr50 - 249T'bilisi, Georgia
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See all 2 projectsOptime is a software development company specializing in video, streaming, and media processing solutions. The company has consistently received positive feedback from clients, with reviews highlighting their technical expertise in low-latency video streaming and media codec applications. Approximately 100% of the feedback underscores Optime's adept project management and effective collaboration with clients, demonstrating their ability to meet and exceed performance and quality objectives.
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$1,000+$25 - $49 / hr2 - 9
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See all 1 projectsrozwoj-oprogramowania.pl is a software development company specializing in creating automated systems using technologies like Java, Spring Boot, and Selenium. The company received positive feedback, with 100% of reviewers noting their timely project completion and effective problem-solving skills. Clients appreciated the smooth project management and communication, emphasizing the developer’s ability to resolve technical challenges efficiently.
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$1,000+< $25 / hr10 - 49
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See all 7 projectsAgilsys Software Labs Pvt. Ltd. is a proficient enterprise application modernization company specializing in full-stack development, API development, and software testing automation. The company receives overwhelmingly positive feedback, with many clients highlighting their technical expertise and adaptability. Approximately 90% of reviewers commend their project management and timely delivery, while around 85% appreciate their proactive communication and commitment to client satisfaction.
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$5,000+$25 - $49 / hr50 - 249Ahmedabad, India
Services provided
See all 15 projectsTechnoBrains Business Solutions LLP is a versatile software development company specializing in mobile app development, UI/UX design, and web development. With 100% positive feedback, clients frequently commend their excellent project management, transparency, and ability to deliver high-quality projects on time. Approximately 85% of reviewers highlight their impressive communication and professional conduct, while 70% note their adaptability and alignment with client needs.
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$1,000+$25 - $49 / hr1,000 - 9,999Łódź, Poland
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See all 7 projectsTransition Technologies PSC is a company specializing in product lifecycle management (PLM), Internet of Things (IoT) solutions, and software development, with a strong emphasis on Windchill and ThingWorx technologies. The company is praised for its technical expertise and efficient problem-solving abilities, with approximately 83% of reviews highlighting their capability in delivering complex projects on time. However, some reviewers noted challenges related to rapid growth impacting team experience.
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$5,000+$25 - $49 / hr10 - 49Kraków, Poland
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See all 1 projectsSoftelnet is a technology solutions provider specializing in Java-based system integrations for the healthcare sector. According to customer reviews, they maintain a high level of professionalism, delivering stable, high-quality products with efficient communication and adherence to deadlines. The customer feedback is 100% positive, highlighting their flexibility and excellent documentation.
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$10,000+$150 - $199 / hr10 - 49Roswell, GA
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See all 7 projectsSentry IT, LLC is a company specializing in Enterprise Application Modernization and IT Modernization services. With a remarkable 100% positive feedback rate, clients commend their exceptional project management, attention to detail, and commitment to success. Approximately 60% of reviewers highlight their transformative impact on operations, leading to improved efficiency and a competitive edge.
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$5,000+$25 - $49 / hr10 - 49Karachi, Pakistan
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See all 5 projectsGYB Commerce is a web design and development company known for its commitment to creating user-friendly and responsive websites. With a 100% positive feedback rate, clients appreciate their cooperative attitude, timely delivery, and reliable project management. Many reviewers highlight their strong communication and responsiveness, with 67% mentioning these traits specifically.
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$10,000+$25 - $49 / hr10 - 49Dnipropetrovs'k, Ukraine
Services provided
See all 3 projectsUnicreo is a software development company specializing in creating custom applications and offering programming support across various technologies, including WebRTC, .NET, Node.js, and more. Overall feedback is highly positive, with clients appreciating their dedication, flexibility, and strong communication skills. Approximately 90% of reviewers highlight their technical expertise and ability to deliver projects efficiently, while some suggest improvements in reporting frequency and openness to feedback.
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$10,000+$100 - $149 / hr10 - 49Madrid, Spain
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See all 2 projectsEtéreo is a software development company specializing in frontend architecture, UX/UI design, and agile project management. Reviews consistently highlight their high performance, outstanding communication, and innovative, business-oriented solutions. Impressively, 100% of reviewers noted significant improvements in project outcomes, including a 45% increase in conversion rates and a 30% boost in online sales.
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$5,000+$25 - $49 / hr10 - 49Ahmedabad, India
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See all 1 projectsMulticore Technologies is a versatile app development company specializing in creating web and native applications compatible with iOS and Android platforms. Their reviews consistently highlight their thorough project execution and effective communication, with 100% of clients expressing satisfaction and no areas for improvement noted. Their ability to exceed client expectations while maintaining a clear project scope is also frequently mentioned.
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$10,000+$25 - $49 / hr10 - 49Varna, Bulgaria
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See all 2 projectsCode Comrades Ltd is a software development company specializing in creating engaging digital experiences through strategic design and development. Their efforts have led to improved website performance and streamlined content management, with 100% of reviewers highlighting their professionalism and communication. However, initial technical leadership issues were noted but subsequently corrected to enhance project efficiency.
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$25,000+$150 - $199 / hr50 - 249Norcross, GA
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See all 2 projectsThis Dot is a technology company specializing in front-end development and JavaScript SDK design. Review feedback is overwhelmingly positive, highlighting their expertise in developer tools and strong communication skills, with 100% of reviewers expressing satisfaction. Clients appreciate their commitment to community involvement and regard them as a rare find in the industry.
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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.