🧬 Give Your Legacy Mobile App a New Life
Tech moves fast. If your app was built 5+ years ago, chances are it’s bulky, buggy, and no longer competitive. At TAS, we help businesses modernize legacy mobile apps into sleek, high-performance, secure solutions that work beautifully across modern Android and iOS devices.
Whether you’re still using Java, Objective-C, or older hybrid frameworks like Cordova or Ionic — we handle seamless migration to modern stacks like Kotlin, Swift, React Native, or Flutter. Beyond just code, we enhance your app’s UI/UX, improve loading speeds, eliminate crashes, and future-proof your product with clean architecture, modular design, and scalable infrastructure.
We’ve helped both funded startups and large enterprises cut costs, reduce bugs, and significantly improve user experience through app modernization. Let us do the same for you.
🔁 Mobile Stack Migrations We Offer
📱 Native Stack Upgrades
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Java → Kotlin migration
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Objective-C → Swift migration
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Gradle, SDK, and permission model updates
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Refactor + improve code readability & maintainability
🧩 Cross-Platform Modernization
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Legacy apps (Cordova/Ionic) → Flutter or React Native
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Consolidate iOS + Android teams into one codebase
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Reduce maintenance and release cycles
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Align UI/UX with modern design systems
🖼️ UX/UI Refresh & Feature Expansion
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Redesign app interfaces for responsiveness and accessibility
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Integrate biometric login, dark mode, modern gestures
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Add missing features like push notifications, analytics, and offline mode
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Align with platform guidelines (Material Design, Human Interface)
⚙️ Performance Optimization Services
Even if your app is built with modern tech, performance issues like slow loading, memory bloat, or high crash rates can ruin user trust. TAS helps you optimize:
📊 What We Improve
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Cold & warm start time
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Memory usage and CPU profiling
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Crash logs (Crashlytics, Sentry)
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Battery consumption
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Image/video optimization
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API latency and caching
🧪 Tools We Use
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Android Profiler / Xcode Instruments
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Firebase Performance Monitoring
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LeakCanary, Flipper, NewRelic
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Custom log analyzers and internal QA dashboards
📈 Portfolio Examples from TAS
📲 Multilingual EHR & Voice Transcription App
Rewrote a monolithic Android Java app in Flutter to support cross-platform deployment and integration with GPT. Improved voice input handling, reduced app size by 40%, and added offline transcription support.
🤖 AI Voice Analyzer App
Migrated from a hybrid Cordova setup to Flutter. Rewrote audio capture logic, improved accuracy of voice processing using native plugins, and reduced crashes by 90%.
✅ Why TAS for Mobile App Modernization?
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🎯 10+ years of hands-on experience with every mobile stack
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🧱 Experts in Kotlin, Swift, Flutter, React Native migrations
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💡 Product thinking: not just migration, but feature improvement
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📲 Deep integration of AI, bots, and performance monitoring
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🚀 Fast turnaround with CI/CD and test automation included
❓ App Migration, Modernization & Optimization – FAQs
Q1. What do app migration, modernization, and optimization mean?
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App migration is moving your application to a new environment, such as cloud platforms or modern frameworks.
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Modernization involves upgrading legacy apps with new technologies, architectures, and UI/UX improvements.
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Optimization ensures apps run faster, more securely, and at scale while reducing costs.
Q2. Why should I choose TAS for app migration and modernization?
With 15+ years of product engineering expertise, TAS helps businesses seamlessly migrate legacy apps, optimize performance, and future-proof technology stacks. We ensure minimal downtime, improved scalability, and secure transitions.
Q3. What types of applications can you migrate or modernize?
We handle web apps, mobile apps, enterprise software, SaaS platforms, and cloud-based systems. Whether it’s moving from on-premise to AWS/Azure/GCP or upgrading from outdated frameworks to modern ones, we provide end-to-end solutions.
Q4. How long does an app migration or modernization project take?
A small-scale migration may take 4–6 weeks, while complex enterprise systems with multiple integrations can take 3–6 months. We plan phased rollouts to ensure business continuity.
Q5. What technologies do you use for modernization projects?
We specialize in cloud-native architectures (AWS, GCP, Azure), microservices, containerization (Docker, Kubernetes), DevOps pipelines, and modern frameworks like React, Node.js, and Flutter for re-engineering apps.
Q6. How do you ensure security during migration?
We follow data encryption, backup and recovery strategies, compliance checks (GDPR, HIPAA, SOC 2), and penetration testing to ensure migrations and upgrades are safe and secure.
Q7. How much does app migration or optimization cost?
Pricing depends on app complexity, data volume, and required upgrades. Basic migrations start from a few thousand dollars, while large-scale modernization projects require higher investment. We offer customized pricing models.
Q8. Do you provide post-migration support?
Yes. We provide continuous monitoring, bug fixes, performance tuning, cloud scaling, and feature enhancements to ensure your app stays modern, reliable, and secure.
💬 Breathe New Life into Your Mobile App
Your app doesn’t need a full rebuild. With the right partner, modernization is faster, cheaper, and more effective than you think.
