Top Application Modernization Services
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$5,000+< $25 / hr50 - 249Ahmedabad, India
Services provided
See all 8 projectsPanth Softech is a versatile software development company providing services such as Dynamics 365 CRM development, ETL data solutions, and IoT hardware and app design. The company is praised for its strong communication, professionalism, and promptness, with over 80% of clients highlighting their effective collaboration and responsiveness. Some reviews noted areas for improvement in communication and quality control, but overall satisfaction remains high.
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Undisclosed$50 - $99 / hr2 - 9
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See all 1 projectsUbisource is a talent acquisition company renowned for providing nearshore sourcing solutions and aligning candidates with cultural and business needs. They consistently deliver high-quality resources promptly, with 100% of reviews highlighting their dependability and cultural alignment. Clients appreciate their thoroughness and minimal oversight requirements, with no areas identified for improvement.
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$10,000+$25 - $49 / hr50 - 249
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See all 4 projectsErbis is a comprehensive cloud services provider specializing in full-stack development, business analysis, and database management. Reviews indicate strong technical expertise and proactive project management, with 100% of reviewers noting their exceptional communication and partnership approach. While some initial solutions required adjustments, overall satisfaction with Erbis' adaptability and commitment to quality is consistently high.
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UndisclosedUndisclosed50 - 249Mississauga, Canada
Services provided
See all 1 projectsVeriday is a digital solutions company specializing in website development and DevOps services. Reviews highlight their adaptability, expertise, and effective communication, with 100% of feedback mentioning their commitment to project milestones and cost performance. Their ability to align with client goals and deliver value makes them a favored choice among clients.
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UndisclosedUndisclosed50 - 249Cockeysville, MD
Services provided
See all 1 projectsRDA is a distinguished web development company, specializing in Sitecore CMS solutions. Their reviews consistently highlight exceptional project management skills, seamless collaboration, and profound expertise in Sitecore, with 100% positive feedback emphasizing their professional approach and ability to anticipate and resolve issues effectively. Clients particularly appreciate their proficiency in creating intuitive, mobile-compatible websites that enhance user engagement and satisfaction.
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$10,000+$25 - $49 / hr10 - 49București, Romania
Services provided
See all 1 projectsDevsReady is a technology consultancy specializing in delivering secure and scalable digital banking platforms for corporate clients. The company received overwhelmingly positive feedback, with reviewers praising their strong project management, effective communication, and technical expertise. Approximately 90% of comments highlighted their practical, business-oriented approach and alignment with client values, with no significant areas for improvement noted.
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$10,000+Undisclosed50 - 249Sydney, Australia
Services provided
See all 1 projectsXAM is a software development company specializing in mobile app development, particularly utilizing Xamarin architecture. The company receives overwhelmingly positive feedback, with clients praising their comprehensive skillset and effective project management. Approximately 80% of reviewers highlight XAM's ability to deliver functional solutions that align with customer preferences, emphasizing their flexibility and resourcefulness in handling complex development processes.
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$5,000+< $25 / hr10 - 49Kolkata, India
Services provided
See all 6 projectsBlue Copper Technologies Pvt Ltd is a custom software development company known for delivering high-quality applications across diverse industries, including fashion, accounting, insurance, and legal services. Their expertise in creating geo-location apps, web interfaces, and custom platforms is reflected in their clients' satisfaction, with approximately 90% of feedback being positive. Clients commend their project management skills, responsiveness, and dedication, though some mention challenges due to geographical differences.
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$5,000+$50 - $99 / hr10 - 49
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See all 1 projectsJazzTeam LLC is a software development company noted for its professional and agile approach to creating web applications and SaaS services. Client reviews indicate a high level of satisfaction, with 100% positive feedback highlighting their effective communication, timely delivery, and strong alignment with client objectives. Clients praise the team's discipline, proactivity, and impressive results, enhancing business processes and ensuring data security.
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$10,000+$25 - $49 / hr10 - 49
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See all 2 projectsBlare Technologies Sp. z o.o. is a software development company specializing in smart city solutions, digital twins, and 3D app development. Reviewers consistently praised their project management, timely delivery, and advisory expertise, with 100% positive feedback highlighting their commitment to high-quality outcomes and effective communication.
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$50,000+$50 - $99 / hr50 - 249
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See all 1 projectsSemantive is a software development company specializing in creating customized tools and solutions, particularly utilizing Python technology. The reviews reflect a 100% positive sentiment, highlighting their strong project management, efficiency, and proactive approach. Clients appreciate their ability to deliver time-saving tools and consistent collaboration, with no negative feedback reported.
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$5,000+$50 - $99 / hr10 - 49Santa Fe de la Vera Cruz, Argentina
Services provided
See all 2 projectsFlowing Code is a software development company known for its expertise in Java development and DevOps. Clients appreciate their ability to adapt swiftly to project requirements and integrate seamlessly into existing workflows. Feedback is overwhelmingly positive, highlighting their commitment to quality, with one client noting a 95% reduction in incident reports. While communication is generally good, there's room for continuous improvement.
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$10,000+$25 - $49 / hr10 - 49Warszawa, Poland
Services provided
See all 4 projectsDevOpsi is a versatile software development company specializing in DevOps, custom application development, and cloud infrastructure solutions. Across its reviews, 100% of the clients praised DevOpsi's technical expertise, project management autonomy, and commitment to quality. While communication and time estimation were noted as areas for improvement by 50% of the reviewers, the overall satisfaction with their professional engagement and delivery remains high.
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$10,000+$100 - $149 / hr2 - 9
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See all 3 projectsLD Studios is a versatile technology firm known for its expertise in developing custom solutions, including database creation and management systems. Their reviews reflect a high level of client satisfaction, with 100% of reviews highlighting their effective project management and responsiveness. Clients commend their ability to deliver comprehensive and tailored solutions, often exceeding expectations and providing services pro bono or at significant value.
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$10,000+$25 - $49 / hr10 - 49Jaipur, India
Services provided
See all 9 projectsStartup Labs Infotech Private Limited is a versatile software development company specializing in custom software solutions and application development, including web and mobile platforms, with a focus on UI/UX design, AI model training, and backend capabilities. Reviews indicate a 100% satisfaction rate, highlighting their strong project management, transparent communication, and problem-solving abilities. Despite occasional deadline challenges, their adaptability and customer-centric approach are consistently praised.
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$25,000+$150 - $199 / hr10 - 49Schaumburg, IL
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See all 6 projectsCaptivix is a versatile technology solutions provider specializing in web and application development, ERP implementation, and software integration. Across various projects, they consistently receive positive feedback for their technical expertise, project management skills, and effective communication. Approximately 100% of reviewers commend their ability to meet deadlines and provide innovative solutions, indicating broad satisfaction with their professionalism and service quality.
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$10,000+$25 - $49 / hr50 - 249New Delhi, India
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See all 5 projectsNablasol is a custom software development company known for providing tailored solutions such as integrations and automation tools. Across their reviews, they receive positive feedback for responsiveness and team cohesion, with approximately 100% of reviewers appreciating their alignment with company values and cultural fit. However, some noted minor project delays and initial resource allocation challenges.
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$25,000+$50 - $99 / hr10 - 49Riverwoods, IL
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See all 12 projectsInsyte Consultancy Services is a specialized app development company known for creating custom mobile solutions across various platforms. With consistently positive feedback from clients, approximately 90% of reviews highlight their technical expertise and ability to bring innovative app ideas to fruition. Clients appreciate their communication and project management, though some note that timelines occasionally extend. Overall, Insyte Consultancy Services is recommended for their professionalism and commitment to client satisfaction.
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$10,000+$25 - $49 / hr2 - 9
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See all 1 projectsBits Nexus is a software development company that specializes in developing and deploying software products with robust infrastructure capable of handling complex modeling and multiple users. The reviews predominantly highlight positive feedback, with clients praising their project management, timely delivery, and proactive improvements, although specific improvements are addressed directly and flexibly managed.
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$25,000+$50 - $99 / hr10 - 49Warszawa, Poland
Services provided
See all 5 projectsTYMIQ is a software development company specializing in custom software solutions and system migrations, with expertise in domains like IoT and Orchard Core. The overall feedback highlights their technical proficiency, timely delivery, and effective communication, although 20% of reviewers suggest communication could improve. Approximately 80% of reviewers emphasize TYMIQ's flexibility and alignment with client needs as standout qualities.
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$250,000+$150 - $199 / hr10 - 49Oklahoma City, OK
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See all 1 projectsPhase 2 is a software development company specializing in mobile platform solutions, particularly for sectors requiring remote accessibility. They have been praised for their project management skills and effective communication, with an estimated 800 industry members utilizing their app. A significant 100% of reviewers value their ongoing support and recommend discussing project scopes thoroughly.
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$5,000+$25 - $49 / hr50 - 249Montevideo, Uruguay
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See all 8 projectsGeneXus Consulting is a software development company specializing in custom development, digitization, and system integration using proprietary technologies. Reviews of GeneXus Consulting reveal a strong emphasis on effective project management and professionalism, with 70% of clients praising their proactive approach to problem-solving and project deadlines. However, 30% have noted areas for improvement in communication and bug testing. Overall, they are commended for their adaptability and collaboration.
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$50,000+< $25 / hr50 - 249Kazhakkoottam, India
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See all 12 projectsXminds Infotech is a versatile software development company offering web, mobile app, and backend development services. They receive overwhelmingly positive feedback, with approximately 90% of reviews highlighting their technical expertise, responsiveness, and effective communication. Clients appreciate their commitment to deadlines and quality, although some mention minor areas for improvement in QA processes and communication.
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$5,000+$50 - $99 / hr50 - 249Warszawa, Poland
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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
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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
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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
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See all 5 projectsVirtual Splat Software Pvt. Ltd. is a custom software development company specializing in ERP systems and related technologies. Across their reviews, they are praised for their commitment, timely delivery, and ability to meet customized client needs, with a notable 100% positive feedback rate. However, some clients suggest improvements in documentation and team expansion.
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$25,000+$150 - $199 / hr10 - 49St. Louis, MO
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See all 1 projectsAlliance Systems is a technology solutions provider specializing in web development and digital marketing strategies. The company receives overwhelmingly positive feedback, with clients praising their sophisticated technology solutions, effective project management, and flexibility, leading to notable sales increases. Approximately 100% of reviewers highlight their fair pricing and exceptional service, underscoring their value and reliability as a partner.
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$5,000+$25 - $49 / hr50 - 249Kakkanad, India
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See all 18 projectsSayOne Technologies is a versatile software development company specializing in e-commerce, mobile app, and web development services, with a strong foundation in technologies like Python and Django. Reviews reveal 100% positive feedback, emphasizing their effective communication, timely delivery, technical expertise, and client satisfaction. Approximately 30% of reviewers appreciate their project management skills, highlighting their dedication to meeting expectations and openness to feedback.
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$25,000+$25 - $49 / hr10 - 49Yerevan, Armenia
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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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List of the Top 15 Legacy Modernization Services
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$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.