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Types of App Modernization in Cloud Computing

May 4, 2025 By Durapid

Just as companies race to embrace digital transformation, they find themselves dragging a little something called their legacy applications along. One is that we have a lot of things in our houses, office desks and laptops that are like old, unused suitcases: things we used to need but no longer do, but that we are still lugging around, even if they’re too heavy to be useful in this fast, cloud-first world. That’s where Application Modernization comes in. It’s not just a tech upgrade, it’s a thoughtful, strategic overhaul of older software systems, clearing a path for those systems to work better, scale faster, and support current business demands.

Whether you’re a mid-market healthcare enterprise diving through compliance hoops while also protecting sensitive health information or a global business trying to scale across the globe, understanding the kinds of app modernization in cloud computing is essential. Why? Because it helps you find that elusive spot with just the right blend of speed, scalability, and security — with your budget, your team, and your sanity still intact.

Why Application Modernization Matters Today

Old applications are like overworked employees—they crash often, take too long to respond, and cost way too much to maintain. And in a world where customers expect instant service and teams demand agility, that just won’t cut it.

Here’s where cloud-native services, DevOps practices, and serverless computing change the game. When you modernize your apps—whether through replatforming, refactoring, or microservices migration—you redefine:

Operational agility (No more “We can’t change that now”)
Lower infrastructure costs (Goodbye massive maintenance bills)
Scalability and uptime (Apps that flex when demand surges)
Faster go-to-market cycles (Launch updates in weeks, not months)

Real Story: A fintech company in Singapore was stuck with a monolithic core-banking system that couldn’t support their new mobile interface. With Durapid’s Cloud Application Modernization services, they transitioned to a containerized, microservices-based model on AWS. The result? Deployment frequency increased by 75%, and incident response time dropped by half. That’s the benefit of application modernization in cloud computing in action.

Let’s not forget: You don’t modernize tech just to modernize. You do it to empower people, streamline operations, and drive impact at scale.

Types of Application Modernization in Cloud Computing

Below are the most widely adopted strategies businesses follow during app modernization. Each offers distinct benefits depending on the app’s lifecycle, business goals, and cloud migration maturity.

1. Rehosting (“Lift-and-Shift”)

Also known as “lift-and-shift”, rehosting involves moving apps to the cloud without significant code changes.

Best for: Fast cloud migration
Use case: Legacy financial software with minimal performance needs
Tools: AWS Application Migration Service, Azure Migrate

Pro Tip: Use rehosting to create a quick cloud footprint while planning deeper modernization phases.

Replatforming

This is a slightly modified version of rehosting. You optimize certain elements (like database or runtime) for the cloud while preserving core architecture.

Best for: Apps that need moderate improvements without rewriting code
Use case: Healthcare management apps migrating to cloud-native databases

Example: Moving from on-premise SQL to AWS RDS or Azure SQL for better performance.

Refactoring (Re-architecting)

This method involves rewriting the app’s core architecture to make it cloud-native, like shifting from monolithic to microservices.

Best for: Companies embracing DevOps and containerization
Use case: Scaling patient records and billing systems via Kubernetes
Bonus: Enables automation, resilience, and continuous delivery

Check out this insight from IBM on how cloud-native modernization enhances resilience and innovation.

Rebuilding

Rebuilding means creating the application from scratch using modern cloud technologies, such as serverless computing and containers.

Best for: Apps with outdated frameworks or poor scalability
Use case: Building global finance dashboards using serverless functions and APIs

It offers flexibility and innovation, but requires upfront investment and planning.

Replacing (Repurchasing)

Instead of modernizing in-house, you replace the app with a SaaS solution (like Salesforce or SAP).

Best for: Non-core business functions
Use case: Replacing legacy HR or accounting systems with cloud SaaS

Choosing the Right Cloud Migration Strategy

Not all applications need deep refactoring. Some benefit from simple rehosting, while others require rebuilding to meet compliance and performance needs—especially in healthcare and finance.

Durapid’s cloud migration strategy ensures every application is evaluated for risk, ROI, and business continuity before making the leap.

Benefits of Application Modernization

Let’s not sugarcoat it, legacy systems are expensive, slow, and rigid. If you’re still running critical operations on outdated software, you’re bleeding money, time, and talent.

Here’s what organizations actually gain when they invest in the right Application Modernization strategy:

Reduced Time-to-Market with CI/CD Pipelines

Modernization isn’t just about rewriting code. It’s about building momentum. When applications are re-architected using DevOps practices and cloud-native services, businesses unlock the power of continuous integration and continuous delivery (CI/CD).

Case in Point: A US-based medical SaaS company working with Durapid reduced their deployment cycle from 2 weeks to 3 days post-modernization. They shifted to microservices architecture hosted on AWS and integrated automated testing across modules. Speed? Done. Stability? Done. Scale? Done.

Improved Compliance with Regional Data Policies

For sectors like healthcare, compliance isn’t a luxury, it’s a necessity. Application modernization allows companies to align with HIPAA, GDPR, or local data laws by leveraging Cloud Application Modernization services that offer fine-grained data control and real-time audit logging.

Real Example: A mid-sized hospital chain in Southeast Asia modernized its outdated patient record system, migrating it to a serverless computing model on Microsoft Azure.

The result? Full compliance with local health data laws and zero data breaches since deployment.

Real-Time Dashboards and Insights for Finance Teams

Legacy finance systems operate in silos. With application modernization, especially tailored for business leaders, businesses can deploy real-time dashboards that pull data from various cloud sources for instant visibility.

Use Case: A fast-scaling diagnostics chain across India adopted a cloud migration strategy with Durapid and rebuilt their internal finance app using cloud-native architecture. Today, their employees can monitor cash flow, costs, and vendor payments across 18 clinics, in real time.

This is why cloud application modernization is essential: not just for speed, but for clarity and control.

Lower Infrastructure and Operational Overhead

Moving from clunky monoliths to cloud-native services significantly cuts costs. Think auto-scaling, pay-as-you-go pricing, and zero hardware headaches.

Client Snapshot: A mid-sized insurance tech platform saved over 40% on infrastructure after rehosting their legacy claim processing system to Google Cloud using Durapid’s Application Modernization services. That’s not just savings, that’s budget reallocation for growth.

Enhanced Scalability and Global Reach

Modern applications don’t break under pressure. Whether you’re adding 100 users or 10,000, cloud-native systems scale seamlessly, horizontally and vertically.

Real Example: A B2B logistics aggregator modernized their backend via steps to migrate applications to microservices architecture. Post-migration, they handled 6x traffic during peak festival months without downtime, a feat their old stack couldn’t dream of.

Still wondering why cloud application modernization is essential?

Because without it, your competitors will outpace you in speed, compliance, decision-making, and customer experience. The benefits of application modernization in cloud computing aren’t just technical, they’re business-critical.