Top Application Modernization Services
-
UndisclosedUndisclosedFreelancerLee's Summit, MO
Services provided
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.
-
$1,000+$50 - $99 / hr2 - 9København, Denmark
Services provided
See all 1 projectsFifium is a web development company specializing in creating personalized websites that reflect their clients' brands. Reviews highlight their strong project management skills and fair pricing strategy. Approximately 100% of the feedback mentions their effective communication and responsiveness, with their ability to maintain ongoing client support being a notable strength.
-
$10,000+$50 - $99 / hr2 - 9
Services provided
See all 1 projectsXupe is a web and mobile app development company, known for its strategic input and collaborative project management. Receiving positive feedback, Xupe excels at adapting to client needs and offering valuable insights. While client expectation management could improve, 100% of clients appreciate their flexibility and strategic contributions.
-
$25,000+$25 - $49 / hr50 - 249Gurugram, India
Services provided
See all 3 projectsOTS Solutions is a mobile application development company that provides services including design, implementation, and app functionality for both iOS and Android platforms. The reviews indicate a high level of professionalism and commitment, with 100% of clients appreciating their collaborative approach and attention to detail. While some communication challenges were noted, clients highly recommend OTS Solutions for their effective project management and successful delivery of applications.
-
$10,000+< $25 / hr50 - 249Pune, India
Services provided
See all 3 projectsQuicSolv Solutions is a versatile software development company providing services including mobile app development and end-to-end CRM solutions. The reviews highlight QuicSolv's expertise in project management and adaptability, with 100% of reviewers commending their dedication and client-focused approach. Clients appreciate their ability to deliver within budget and timelines, demonstrating strong technical capabilities and effective communication.
-
$5,000+$50 - $99 / hr10 - 49Regensburg, Germany
Services provided
See all 5 projectsint2code GmbH is an innovative software development company that specializes in embedded software solutions with a strong focus on the automotive and engineering sectors. Across the reviews, 100% of clients highlight the exceptional technical expertise and the proficiency of its engineers. The company is praised for its effective communication and integration within client teams, with no significant complaints or areas for improvement mentioned.
-
$1,000+$25 - $49 / hr2 - 9Jakarta, Indonesia
Services provided
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.
-
$5,000+$25 - $49 / hr2 - 9Punta del Este, Uruguay
Services provided
See all 1 projectsXenio is a machine learning development company praised for their strategic and execution capabilities, particularly in core technology projects. Reviews indicate strong communication skills, with 100% positive feedback highlighting their project management and ability to innovate. However, 20% of reviewers noted a language barrier, suggesting room for improvement in multilingual fluency.
-
$5,000+$25 - $49 / hr2 - 9
Services provided
See all 1 projectsDrishna Technologies is a web application development company specializing in both frontend and backend technologies. Their team, including a CTO and multiple developers, receives highly positive feedback, with 100% of reviewers praising their energetic team and effective workflow. Clients appreciate their support, resulting in successful project completions.
-
$5,000+$100 - $149 / hr2 - 9Bury St Edmunds, England
Services provided
See all 1 projectsORBN Digital is a web development company known for creating professional and user-friendly websites. The reviews emphasize their ability to integrate modern design elements and align closely with clients' visions. Feedback highlights their excellent project management, with 100% of reviewers praising their timely delivery and effective communication, focusing on a seamless and impressive experience.
-
$1,000+$50 - $99 / hr10 - 49
Services provided
See all 6 projectsEngine is a multifaceted technology company providing services in mobile application development, ERP solutions, and technical maintenance. Reviews indicate a 70% satisfaction rate, with clients praising their expertise, project management, and attention to detail. However, some concerns were noted regarding code quality and transparency, particularly in complex projects. Overall, Engine is recommended for those seeking in-depth technical assistance and seamless communication.
-
$5,000+$25 - $49 / hr10 - 49Delhi, India
Services provided
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.
-
$1,000+$25 - $49 / hr10 - 49Karachi, Pakistan
Services provided
See all 1 projectsCrestSync is a graphic design and web development company known for its effective solutions in graphic design for print products and promotional items. They consistently deliver on time, with 100% of feedback focused on their quick response and impressive turnaround time. Clients report a 20% increase in satisfaction, highlighting their valuable contribution to client retention.
-
$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.
-
$10,000+$50 - $99 / hr10 - 49San Francisco, CA
Services provided
See all 1 projectsStreamline Social is a UI/UX design company that aids businesses in creating user-friendly and presentable mobile applications. The overall feedback is positive, highlighting their resourcefulness and willingness to explore different solutions. While 100% of reviewers appreciate their quality work, some suggest improvements in their speed. The ongoing collaboration reflects their commitment to project success.
-
$50,000+$100 - $149 / hr10 - 49
Services provided
See all 1 projectsSilicon Valley Insight is a custom software development company specializing in complex backend systems and quiz software solutions. All reviews indicated positive feedback, highlighting their proactive communication and ability to exceed expectations. They have successfully engaged over 40,000 respondents for a client's quiz, showcasing their impactful results and effective project management skills.
-
$1,000+< $25 / hr10 - 49
Services provided
See all 3 projectsDevs Dynasty is a software development company specializing in creating scalable and high-performance software solutions, including mobile apps and web services with AI and machine learning integration. The overall feedback from their reviews is highly positive, highlighting their excellent project management, responsiveness, and adaptability, with 100% of reviewers noting their impressive AI expertise and seamless integration capabilities.
-
Undisclosed$25 - $49 / hr50 - 249Pune, India
Services provided
See all 2 projectsInfoTechBrains CloudTech is a website development and maintenance company renowned for its robust technical solutions tailored to client needs. Based on reviews, they deliver 100% of projects on time and maintain proactive communication. While clients are highly satisfied, with 100% positive feedback, there is a suggestion for more structured performance analytics to enhance decision-making.
-
$25,000+$100 - $149 / hr2 - 9Phoenix, AZ
Services provided
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.
-
$1,000+$100 - $149 / hr2 - 9İstanbul, Türkiye
Services provided
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.
-
$10,000+$150 - $199 / hr2 - 9
Services provided
See all 1 projectsJoen.io is a development company specializing in creating interactive mobile applications. Reviews indicate that they deliver high-quality, complex products that meet client expectations, with an emphasis on honest partnerships and effective communication. Approximately 100% of the feedback highlights their reliability, although some suggest improvements in project management. Overall, Joen.io is praised for their professionalism and ability to meet deadlines within budget constraints.
-
$25,000+Undisclosed50 - 249Surat, India
Services provided
See all 2 projectsTriveni Global Software Services LLP is a web development company specializing in building marketing websites, e-commerce platforms, and offering social media marketing services. Their reviews are overwhelmingly positive, with clients praising their responsiveness, timely delivery, and effective integration of graphics, web development, and marketing. Approximately 100% of reviewers highlight the company's excellent value for cost and cultural alignment.
-
$5,000+< $25 / hr10 - 49
Services provided
See all 5 projectsNPS SOFTWARES LLP is an information technology company specializing in Salesforce resources, AI automation, Health Cloud, and mobile app development. Reviews indicate a 100% positive sentiment, with clients praising their professionalism, timely delivery, and technological expertise, with 100% of reviewers highlighting their reliable and skilled team.
-
$5,000+$50 - $99 / hr2 - 9Bengaluru, India
Services provided
See all 1 projectsAccode Software Pvt. Ltd. is a mobile and web development company recognized for its expertise in React, React Native, and Firebase. All reviews highlight their timely delivery and effective communication, with particular praise for the technical knowledge of their founder, Bhavish. The reviews do not indicate any areas for improvement, reflecting 100% positive feedback.
-
UndisclosedUndisclosed2 - 9Encinitas, CA
Services provided
See all 1 projectsAgency73 is a software development company specializing in custom applications and analytics solutions. Reviewers commend their adaptability, professionalism, and ability to deliver high-quality work under tight deadlines. Notably, 100% of reviewers highlight their collaboration and integration into client teams, while some note potential challenges due to the company's size. Overall, 90% of feedback is positive, emphasizing their security consciousness and effective project management.
-
$10,000+$100 - $149 / hr2 - 9Columbus, OH
Services provided
See all 1 projectsSoftware Verde, LLC is a software development company specializing in integrating Python APIs into complex image processing pipelines. According to reviews, the company excels in clear communication and efficient project management, consistently delivering projects on time and under budget. Feedback is overwhelmingly positive, with 100% of reviewers expressing satisfaction with their experience.
-
$1,000+$50 - $99 / hr2 - 9
Services provided
See all 1 projectsDarkwater Digital is a digital marketing and web development company specializing in enhancing web presence and design. The feedback is overwhelmingly positive, with clients praising their responsiveness, cost-effectiveness, and ability to improve Google rankings. Approximately 100% of reviewers commend their professional and personal service, leading to increased client inquiries and satisfaction.
-
$1,000+$25 - $49 / hr2 - 9Toronto, Canada
Services provided
See all 1 projectsSummer Digital is a web development company specializing in website revamps and digital strategy enhancement. The reviews highlight their exceptional responsiveness and agility in project turnaround. With a 100% positive feedback rate, clients particularly commend their prompt communication and ability to deliver satisfactory results swiftly.
-
$1,000+< $25 / hr10 - 49
Services provided
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.
-
$5,000+$25 - $49 / hr10 - 49
Services provided
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.
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My Matches
Tell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
List of the Top 15 Legacy Modernization Services
-
$50,000+$50 - $99 / hr250 - 999Miami, FL
Ability to deliver
38.5/40.019.4/20 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 / 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 -
$50,000+$50 - $99 / hr50 - 249Miami, FL
Ability to deliver
35/40.017/20 Reviews10/10 Clients & Experience8/10 Market PresenceService focus
50% Enterprise App Modernization50% Other -
$5,000+$50 - $99 / hr10 - 49Brno, Czech Republic
Ability to deliver
34.2/40.018.6/20 Reviews9.8/10 Clients & Experience5.7/10 Market PresenceService focus
60% Enterprise App Modernization40% Other -
$25,000+$25 - $49 / hr1,000 - 9,999Orlando, FL
Ability to deliver
40/40.020/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$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
10% Enterprise App Modernization90% Other -
$50,000+$50 - $99 / hr1,000 - 9,999Kraków, Poland
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 - 9,999Atlanta, GA
Ability to deliver
37.3/40.017.6/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
39.1/40.019.6/20 Reviews10/10 Clients & Experience9.5/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr50 - 249Gliwice, Poland
Ability to deliver
38.9/40.019/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$100 - $149 / hr250 - 999London, England
Ability to deliver
36.8/40.017.6/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$50,000+$50 - $99 / hr250 - 999London, England
Ability to deliver
36.8/40.016.8/20 Reviews10/10 Clients & Experience10/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
$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+$50 - $99 / hr250 - 999Hudson, OH
Ability to deliver
36/40.016.6/20 Reviews9.8/10 Clients & Experience9.6/10 Market PresenceService focus
20% Enterprise App Modernization80% 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 -
$50,000+$50 - $99 / hr50 - 249San Francisco, CA
Ability to deliver
39.8/40.020/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
10% Enterprise App Modernization90% 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 -
$25,000+$25 - $49 / hr250 - 999Lakeville, MN
Ability to deliver
37/40.017.2/20 Reviews9.9/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$150 - $199 / hr50 - 249Montréal, Canada
Ability to deliver
37.5/40.017.8/20 Reviews10/10 Clients & Experience9.7/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$10,000+$50 - $99 / hr50 - 249Warszawa, Poland
Ability to deliver
35.3/40.016.8/20 Reviews10/10 Clients & Experience8.6/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr50 - 249L'viv, Ukraine
Ability to deliver
38.3/40.019.4/20 Reviews10/10 Clients & Experience8.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$10,000+$25 - $49 / hr50 - 249Warszawa, Poland
Ability to deliver
38.3/40.019.2/20 Reviews10/10 Clients & Experience9.1/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
UndisclosedUndisclosed1,000 - 9,999Atlanta, GA
Ability to deliver
33.3/40.016/20 Reviews10/10 Clients & Experience7.3/10 Market PresenceService focus
20% Enterprise App Modernization80% Other -
$25,000+$50 - $99 / hr50 - 249Prague, Czech Republic
Ability to deliver
39.2/40.020/20 Reviews10/10 Clients & Experience9.2/10 Market PresenceService focus
10% Enterprise App Modernization90% Other -
$10,000+$25 - $49 / hr50 - 249Portland, OR
Ability to deliver
35.1/40.016.8/20 Reviews10/10 Clients & Experience8.3/10 Market PresenceService focus
30% Enterprise App Modernization70% Other -
$25,000+$25 - $49 / hr250 - 999Frisco, TX
Ability to deliver
36.5/40.016.6/20 Reviews10/10 Clients & Experience9.9/10 Market PresenceService focus
15% Enterprise App Modernization85% Other -
$50,000+$100 - $149 / hr50 - 249Belfast, Northern Ireland
Ability to deliver
37/40.017.2/20 Reviews10/10 Clients & Experience9.8/10 Market PresenceService focus
20% Enterprise App Modernization80% Other
Top App Modernization Agencies
App modernization companies upgrade, refactor, or re-platform legacy software so it performs like a modern, cloud-ready application. They begin by auditing the existing codebase, infrastructure, and business requirements, then create a roadmap that might include re-architecting monolithic apps into microservices, containerizing workloads, or migrating databases to scalable cloud environments. Their end goal is to improve performance, security, and maintainability while minimizing downtime.
Most firms deliver a mix of strategic and technical services, such as:
- Legacy code assessment and technical debt analysis
- Re-platforming (e.g., on-prem to AWS, Azure, or GCP)
- Code refactoring and re-architecting into microservices
- API enablement and containerization (Docker, Kubernetes)
- UI/UX refresh and mobile optimization
- Data migration, cleansing, and database modernization
- Ongoing maintenance, DevOps, and cloud cost optimization
Pricing varies widely depending on project scope, complexity, and the tech stack involved. Clutch data shows most engagements range from $50,000 to $500,000 overall, with hourly rates between $75 and $200. Lighter projects like a UI facelift or limited refactoring tend to fall near the lower end, while full re-architectures involving cloud migration, data overhaul, and strict compliance can exceed $1 million. Always request a detailed proposal that outlines costs for discovery, development, testing, and support.
When choosing the best right app modernization for your business, consider these:
- Review expertise: Look for case studies that mirror your tech stack (Java, .NET, PHP) and industry compliance needs.
- Check client feedback: Verified Clutch reviews reveal how the team communicates, hits deadlines, and handles setbacks.
- Evaluate methodology: A strong partner will propose a phased approach that includes assessment, pilot, and rollout stages, each with clear success metrics.
- Validate certifications: Cloud partnerships (AWS, Microsoft, Google) signal deep platform knowledge.
- Assess cultural fit: Long projects require easy communication, mutual trust, and shared time zones or overlap.
These are some of the red flags that you should watch for when hiring an app modernization company:
- Guaranteed timelines before an audit: Accurate estimates require a code and infrastructure review.
- Lack of documentation: If they won’t commit to architecture diagrams, test plans, or knowledge transfer, future maintenance may suffer.
- One-size-fits-all solutions: Forcing every project onto a single cloud or framework can indicate limited expertise.
- Poor security practices: Outdated OWASP knowledge or no DevSecOps pipeline is a deal-breaker for critical systems.
- Minimal client references: A reputable firm should readily provide recent, relevant references.
Here are some questions you can ask app modernization companies before hiring them:
- Which modernization strategies (rehost, refactor, re-architect) do you recommend for our stack, and why?
- Can you share success metrics from similar projects—e.g., performance gains or cost reductions?
- What is your approach to minimizing downtime during migration?
- How will you ensure code quality and security (tooling, peer reviews, automated testing)?
- What support and knowledge-transfer do you provide after launch?
- How do you handle scope changes and unforeseen legacy issues?
Partnering with specialists accelerates time-to-value. Experienced teams bring proven frameworks, automation toolchains, and cloud partnerships that help reduce risk and shorten migration windows. Businesses often benefit from faster performance, lower maintenance costs, improved security compliance, and easier feature releases, all without overburdening internal teams.
A freelancer may handle small refactoring tasks cost-effectively but often lacks the resources for large-scale audits, DevOps, and 24/7 support. Agencies provide multidisciplinary teams including architects, developers, QA specialists, DevOps engineers, and project managers who can deliver end-to-end transformations with enterprise-grade SLAs.