Top Application Modernization Services
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$50,000+$25 - $49 / hr50 - 249Manchester, England
Services provided
See all 1 projectsArrk Group is a technology solutions provider specializing in web and mobile platform architecture, design, build, and support services. The company is praised for its effective project management and seamless collaboration, with 100% of reviews highlighting their dedication and expertise. Clients appreciate their alignment with company values and successful long-term partnerships.
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$10,000+$50 - $99 / hr10 - 49Meerbusch, Germany
Services provided
See all 1 projectsIteora GmbH is an IT solutions and development company that specializes in creating and managing complex IT systems, including platforms and billing infrastructure. Reviews indicate a high level of customer satisfaction, with 100% of feedback highlighting their flexibility, effective project management, and cost-saving strategies, although no significant areas for improvement were identified.
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$10,000+$25 - $49 / hr2 - 9
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See all 2 projectsDev Craft is a software development company specializing in digital product creation, software enhancement, and team augmentation. Notable for their technical acumen, cultural fit, and efficient project management, Dev Craft has received overwhelmingly positive feedback, with all reviewers highlighting their exceptional communication and timely delivery. Some suggest expanding expertise and improving documentation for larger projects.
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$5,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 4 projectsDevsSpace is a web development company specializing in website design, CRM integration, and digital marketing solutions. They consistently deliver high-quality work with 100% customer satisfaction, as noted by clients who appreciate their professionalism, speed, and responsiveness. With 100% of reviews highlighting their expertise and client-centric approach, DevsSpace has proven itself a reliable partner.
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$25,000+$25 - $49 / hr10 - 49Wrocław, Poland
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See all 1 projectsUlan Software is a software development company specializing in creating complex platforms using technologies like MongoDB, Vue.js, Node.js, and PHP. They have received overwhelmingly positive feedback, with 100% of reviews highlighting satisfaction with their work and the platform's extensive functionalities. Clients commend their strong understanding of product requirements and effective project management.
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$5,000+< $25 / hr50 - 249Indore, India
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See all 7 projectsBrain Inventory Consultancy Services Pvt. Ltd. is a staffing and development company offering services such as staff augmentation and software development. Reviews indicated a mixed response, with 75% of them expressing positive experiences, highlighting effective project management and communication. However, 25% of reviews noted trust and transparency issues, particularly regarding staff experience verification.
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$10,000+$25 - $49 / hr10 - 49Brooklyn, NY
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See all 3 projectsMediaset LLC is a versatile digital agency specializing in ERP systems, website development, and comprehensive digital solutions. Reviews highlight their impressive project management, communication, and quality of work, with 100% positive feedback on their ability to meet deadlines and project goals. Clients commend their design, development, and integration capabilities, though a small percentage suggest improvements in promotion efforts.
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$1,000+$50 - $99 / hr50 - 249Jakarta, Indonesia
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See all 2 projectsIce House is a software development company specializing in building native iOS, Android, and web applications. Their reviews highlight a strong emphasis on high-quality development and effective project management, with 100% of reviewers noting their realistic delivery times and organized communication. Clients appreciate their service-oriented approach and the ability to work within budget constraints, although some suggest improvements in app metrics analytics.
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$10,000+$100 - $149 / hr2 - 9Los Angeles, CA
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See all 1 projectsInfiniOne is a mobile app development company, recognized for its expertise in creating custom solutions that enhance workflow efficiency. With 100% positive feedback, clients commend InfiniOne for its transparency, quality work, and effective communication, particularly appreciating their ability to provide constructive feedback and engage directly with developers. The company is noted for its ability to develop user-friendly solutions tailored to client needs.
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$1,000+$25 - $49 / hr2 - 9Chennai, India
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See all 1 projectsClofus Innovations Pvt Ltd is a technology solutions company specializing in AI and software development, particularly for multimedia and communication platforms. Their services have significantly contributed to their clients' success, with 100% of reviewers praising their project management and AI expertise. However, a common theme is the need for improved communication about their capabilities.
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$10,000+$25 - $49 / hr10 - 49Zaporizhzhia, Ukraine
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See all 1 projectsDarkLime is a front-end development company known for rearchitecting Angular applications and enhancing features with adept testing capabilities. They maintain a strong reputation for responsiveness and project management, with 100% of reviewers praising their quick and effective delivery. While initial communication needed improvement, DarkLime promptly addressed this, leading to continued client satisfaction.
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$1,000+$25 - $49 / hr10 - 49Dubai, United Arab Emirates
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See all 1 projectsAppricot IT Consultants is a mobile app development company known for its expertise in building Android and iOS applications. They received positive feedback for their excellent project management and competent development and QA teams, with 100% of reviews highlighting their proficiency and reliability in delivering quality apps. The app developed for Pentabit Apps achieved an average rating of 4.4 from users, reflecting client satisfaction.
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$10,000+$25 - $49 / hr50 - 249Ahmedabad, India
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See all 5 projectsBrevitaz Systems Pvt. Ltd. is a proficient software development company specializing in backend development, cloud solutions, and advanced data technologies such as Elasticsearch, Java, and Scala. A review analysis reveals a high satisfaction rate, with approximately 100% of clients noting their adeptness in managing complex projects and innovative solutions. Their proactive communication and robust project management are consistently praised, while suggestions for improvement are rare, underscoring their strong industry reputation.
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$5,000+$50 - $99 / hr10 - 49Los Angeles, CA
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See all 3 projectsPircle is a versatile software development company specializing in mobile and web application development. Positive feedback is predominant, with 100% of reviewers expressing satisfaction, highlighting timely delivery and technical proficiency. Notably, 50% of reviewers commend Ali for his exceptional collaboration, and all emphasize a high level of confidence in Pircle's problem-solving capabilities.
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$10,000+$25 - $49 / hr10 - 49
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See all 5 projectsYatiLabs Technologies LLP is a distinguished mobile app development company recognized for delivering innovative solutions across multiple platforms, including iOS and Android. Their clients consistently praise the firm for exceptional communication, responsiveness, and the ability to capture and execute visions accurately. Remarkably, 100% of reviewers highlight the company’s strong project management skills and ability to deliver quality work on time.
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$10,000+$100 - $149 / hr2 - 9Minneapolis, MN
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See all 1 projectsDieseinerdata is a software development company specializing in creating custom cloud-based solutions tailored to client needs. According to the reviews, 100% of the feedback is positive, highlighting a significant efficiency gain of 60x in proposal writing and reduced errors. Clients appreciate their expert project management, technical rigor, and the ability to deliver comprehensive functionality without clutter.
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$1,000+$25 - $49 / hr10 - 49San Diego, CA
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See all 4 projectsSitecraft Inc. is a custom application development company that specializes in front- and backend development using technologies like HTML, CSS, JavaScript, WordPress, and PHP. With consistently positive feedback, clients commend their skilled engineers, effective communication, and flexibility. Approximately 90% of reviews praise their technical expertise and project management, while a few suggest minor improvements in UX/UI design capabilities.
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$25,000+$25 - $49 / hr50 - 249
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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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$1,000+$25 - $49 / hr2 - 9Dubai, United Arab Emirates
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See all 12 projectsChacra Software Solutions is a software development company specializing in web and mobile app development, UI/UX design, and digital marketing strategies. Overall, the reviews are overwhelmingly positive, with approximately 100% of clients praising their professionalism, creativity, and effective communication. Many clients (around 80%) also commend their ability to meet deadlines and exceed expectations for project quality and innovation.
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$50,000+$100 - $149 / hr2 - 9
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See all 1 projectsApptitude is a technology company specializing in web and app development with a strong emphasis on clean, modern design and excellent service. The company has received 100% positive feedback, with clients praising their ability to enhance website stability, achieving 99.99% uptime, and their forward-thinking approach to technology while being budget-conscious. Overall, Apptitude is recognized for its flexibility and talented team.
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$5,000+< $25 / hr10 - 49Surat, India
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See all 1 projectsJSbot is a development company specializing in JavaScript, with expertise in HTML, React Native, and Node.js. The feedback highlights their responsive project management and impressive code quality. Approximately 100% of reviewers appreciate their responsiveness, while 20% mention the importance of understanding language and time differences. Overall, clients express satisfaction with JSbot's services and technical understanding.
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$10,000+< $25 / hr250 - 999Chennai, India
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See all 1 projectsSensiple is a software development company that provides services such as bug fixing, product enhancements, and third-party integrations, with a focus on converting platforms like Visual Basic 6 to VB .NET. Review feedback indicates a high level of professionalism and commitment, with notable strengths in scalability and technical project management. However, some reviewers noted challenges in managing productivity and suggested improvements in understanding software functionality.
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$5,000+< $25 / hr10 - 49Vinnytsia, Ukraine
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See all 1 projectsMagisoft Solutions is a software development company specializing in UI development, particularly using REACT. The company's team is praised for their skill and hard work, contributing to successful project outcomes. The feedback is generally positive, with enhanced UI quality and potential business partnerships emerging as a result of their contributions.
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$10,000+$25 - $49 / hr50 - 249Batumi, Georgia
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See all 8 projectsLINKERSOFT GROUP specializes in software modernization services, including app modernization and the migration of legacy systems. Overall feedback highlights their expertise in .Net technology, efficient talent allocation, and timely delivery of project milestones. Clients commend their responsiveness and proactive problem-solving approach, indicating a reliable partner for digital transformation and IT modernization endeavors.
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$5,000+Undisclosed10 - 49
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See all 6 projectsMobile-DI is a mobile app and web development company that specializes in creating innovative solutions for various industries. The company is praised for its technical expertise, seamless communication, and proactive approach in project management. Approximately 83% of reviews highlight their responsiveness and ability to understand business needs, while only about 17% identify areas of improvement, mainly related to communication and project handoff processes.
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$75,000+Undisclosed50 - 249Chişinău, Moldova
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See all 2 projectsISD is a software development company that specializes in providing software solutions and PLC engineering for mechanized warehouses and distribution centers. Clients commend ISD for their thorough knowledge of IT technologies, focus on efficiency, and teamwork. However, improvements in communication and capacity planning were noted. Approximately 90% of the feedback highlights their reliability and effective project management.
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$5,000+$50 - $99 / hr2 - 9
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See all 1 projectsCraftspire is a software development company specializing in agile project management and technologies such as Kotlin and Angular, with a focus on e-signature and document management solutions. Reviews highlight their professionalism, expertise, and ability to adapt to evolving requirements, contributing to high client satisfaction and increasing software adoption rates. Clients appreciate their transparent communication and dedication, with minor suggestions for improved documentation.
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UndisclosedUndisclosed10 - 49Yerevan, Armenia
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See all 1 projectsAOByte is a software development company renowned for their strategic problem-solving and effective communication. They have received 100% positive feedback, with clients particularly praising Tigran, the CEO, for his excellent management and collaboration skills. Clients appreciate their timely deliveries and transparency, highlighting AOByte as a reliable and efficient partner for complex development projects.
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UndisclosedUndisclosed10 - 49Sulzbach an der Murr, Germany
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See all 1 projectsFakir Technology Consultants GmbH is a technology consultancy specializing in web application development and text-mining using advanced algorithms like NLP and Haystack. Reviews highlight their effective project management, with 100% noting the timely delivery and pragmatic approach of their CEO. However, 100% also mention a language barrier as an area for improvement.
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$10,000+$100 - $149 / hr50 - 249Annapolis Junction, MD
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See all 1 projectsInterclypse is a consulting and development firm specializing in modernizing technology infrastructure and providing training in new technologies. With a strong focus on communication and problem-solving, they have received approximately 80% positive feedback for their work, although some reviewers noted occasional lapses in the development cycle and testing processes. Their expertise in consulting and teaching is highly valued by clients.
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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.