Neon Apps team collaborating while working on app modernization projects.

App Modernization & Migration Services

We help businesses modernize and migrate existing applications to current technologies, improving performance, maintainability, and long-term scalability without disrupting core functionality.

Application modernization and migration services for businesses that want to upgrade legacy systems safely and sustainably.

Transforming Legacy Applications into Modern Products

At Neon Apps, modernization focuses on extending the life and value of existing applications.

If your product feels slow, outdated, or difficult to maintain, modernization helps rebuild it using modern frameworks, clean architecture, improved UX, and scalable backend logic—while preserving your core functionality.

Your application becomes faster, cleaner, and ready for growth.

Migrating Applications to Modern Technologies

Outdated frameworks and platforms introduce technical debt and slow down development.

We migrate applications to secure, stable, and high-performance technologies such as Flutter, Swift, Next.js, Node.js, Python, and modern cloud environments. This improves reliability, development speed, and long-term maintainability.

Your product becomes future-ready without a full rebuild from scratch.

Architecture Redesign, Refactoring, and Code Cleanup

Modernization often requires restructuring existing systems.

We refactor unstable logic, remove deprecated libraries, and redesign architecture to follow modern best practices. This reduces bugs, improves stability, and simplifies future development.

Your codebase becomes easier to extend and maintain.

UI and UX Redesign for a Modern Experience

Outdated interfaces negatively impact user engagement.

We redesign screens, interactions, and navigation patterns to deliver a clean, modern, and intuitive experience. The result is a product that feels current and enjoyable for users.

Your application looks and feels refreshed while keeping its original purpose.

Database, Infrastructure, and Cloud Migration

Modern infrastructure is essential for scalable and reliable products.

We support:

Database migrations

Cloud environment migration

API upgrades

Security improvements

Access control and data protection

Whether moving to PostgreSQL, Firebase, AWS, or container-based infrastructure, we ensure a secure and smooth transition.

Your backend becomes more resilient and scalable.

Performance Optimization and Speed Improvements

Legacy systems often degrade in performance over time.

We optimize queries, reduce payload sizes, improve caching strategies, and fine-tune application logic to ensure faster load times and smoother interactions across devices.

Your product becomes noticeably faster and more efficient.

Safe Migration, Minimal Downtime, and Ongoing Support

Modernization and migration are handled carefully to avoid disrupting existing users.

We plan each step to minimize downtime and risk. After completion, we provide monitoring, support, and follow-up improvements to ensure long-term stability and success.

Your transition is secure, controlled, and reliable.

We work with the world's top companies

We work with the world's top companies

We work with the world's top companies

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

How We Work

}

{

How We Work

}

{

How We Work

}

Neon Apps employees exchanging ideas during a project meeting
Neon Apps employees exchanging ideas during a project meeting
Neon Apps employees exchanging ideas during a project meeting

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

These are the reasons companies have trusted us with over 500 projects.

These are the reasons companies have trusted us with over 500 projects.

These are the reasons companies have trusted us with over 500 projects.

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

Got a project?

Let's Connect

Got a project? We build world-class mobile and web apps for startups and global brands.

Contact

Email
support@neonapps.co

Whatsapp
+90 552 733 43 99

Address

New York Office : 31 Hudson Yards, 11th Floor 10065 New York / United States

Istanbul Office : Huzur Mah. Fazıl Kaftanoğlu Caddesi No:7 Kat:10 Sarıyer/Istanbul

© Copyright 2025. All Rights Reserved by Neon Apps

Neon Apps is a product development company building mobile, web, and SaaS products with an 85-member in-house team in Istanbul and New York, delivering scalable products as a long-term development partner.

Neon Apps team collaborating while working on app modernization projects.

App Modernization & Migration Services

We help businesses modernize and migrate existing applications to current technologies, improving performance, maintainability, and long-term scalability without disrupting core functionality.

Application modernization and migration services for businesses that want to upgrade legacy systems safely and sustainably.

Transforming Legacy Applications into Modern Products

At Neon Apps, modernization focuses on extending the life and value of existing applications.

If your product feels slow, outdated, or difficult to maintain, modernization helps rebuild it using modern frameworks, clean architecture, improved UX, and scalable backend logic—while preserving your core functionality.

Your application becomes faster, cleaner, and ready for growth.

Migrating Applications to Modern Technologies

Outdated frameworks and platforms introduce technical debt and slow down development.

We migrate applications to secure, stable, and high-performance technologies such as Flutter, Swift, Next.js, Node.js, Python, and modern cloud environments. This improves reliability, development speed, and long-term maintainability.

Your product becomes future-ready without a full rebuild from scratch.

Architecture Redesign, Refactoring, and Code Cleanup

Modernization often requires restructuring existing systems.

We refactor unstable logic, remove deprecated libraries, and redesign architecture to follow modern best practices. This reduces bugs, improves stability, and simplifies future development.

Your codebase becomes easier to extend and maintain.

UI and UX Redesign for a Modern Experience

Outdated interfaces negatively impact user engagement.

We redesign screens, interactions, and navigation patterns to deliver a clean, modern, and intuitive experience. The result is a product that feels current and enjoyable for users.

Your application looks and feels refreshed while keeping its original purpose.

Database, Infrastructure, and Cloud Migration

Modern infrastructure is essential for scalable and reliable products.

We support:

Database migrations

Cloud environment migration

API upgrades

Security improvements

Access control and data protection

Whether moving to PostgreSQL, Firebase, AWS, or container-based infrastructure, we ensure a secure and smooth transition.

Your backend becomes more resilient and scalable.

Performance Optimization and Speed Improvements

Legacy systems often degrade in performance over time.

We optimize queries, reduce payload sizes, improve caching strategies, and fine-tune application logic to ensure faster load times and smoother interactions across devices.

Your product becomes noticeably faster and more efficient.

Safe Migration, Minimal Downtime, and Ongoing Support

Modernization and migration are handled carefully to avoid disrupting existing users.

We plan each step to minimize downtime and risk. After completion, we provide monitoring, support, and follow-up improvements to ensure long-term stability and success.

Your transition is secure, controlled, and reliable.

We work with the world's top companies

We work with the world's top companies

We work with the world's top companies

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

How We Work

}

{

How We Work

}

{

How We Work

}

Neon Apps employees exchanging ideas during a project meeting
Neon Apps employees exchanging ideas during a project meeting
Neon Apps employees exchanging ideas during a project meeting

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

These are the reasons companies have trusted us with over 500 projects.

These are the reasons companies have trusted us with over 500 projects.

These are the reasons companies have trusted us with over 500 projects.

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

Got a project?

Let's Connect

Got a project? We build world-class mobile and web apps for startups and global brands.

Contact

Email
support@neonapps.co

Whatsapp
+90 552 733 43 99

Address

New York Office : 31 Hudson Yards, 11th Floor 10065 New York / United States

Istanbul Office : Huzur Mah. Fazıl Kaftanoğlu Caddesi No:7 Kat:10 Sarıyer/Istanbul

© Copyright 2025. All Rights Reserved by Neon Apps

Neon Apps is a product development company building mobile, web, and SaaS products with an 85-member in-house team in Istanbul and New York, delivering scalable products as a long-term development partner.

Neon Apps team collaborating while working on app modernization projects.

App Modernization & Migration Services

We help businesses modernize and migrate existing applications to current technologies, improving performance, maintainability, and long-term scalability without disrupting core functionality.

Application modernization and migration services for businesses that want to upgrade legacy systems safely and sustainably.

Transforming Legacy Applications into Modern Products

At Neon Apps, modernization focuses on extending the life and value of existing applications.

If your product feels slow, outdated, or difficult to maintain, modernization helps rebuild it using modern frameworks, clean architecture, improved UX, and scalable backend logic—while preserving your core functionality.

Your application becomes faster, cleaner, and ready for growth.

Migrating Applications to Modern Technologies

Outdated frameworks and platforms introduce technical debt and slow down development.

We migrate applications to secure, stable, and high-performance technologies such as Flutter, Swift, Next.js, Node.js, Python, and modern cloud environments. This improves reliability, development speed, and long-term maintainability.

Your product becomes future-ready without a full rebuild from scratch.

Architecture Redesign, Refactoring, and Code Cleanup

Modernization often requires restructuring existing systems.

We refactor unstable logic, remove deprecated libraries, and redesign architecture to follow modern best practices. This reduces bugs, improves stability, and simplifies future development.

Your codebase becomes easier to extend and maintain.

UI and UX Redesign for a Modern Experience

Outdated interfaces negatively impact user engagement.

We redesign screens, interactions, and navigation patterns to deliver a clean, modern, and intuitive experience. The result is a product that feels current and enjoyable for users.

Your application looks and feels refreshed while keeping its original purpose.

Database, Infrastructure, and Cloud Migration

Modern infrastructure is essential for scalable and reliable products.

We support:

Database migrations

Cloud environment migration

API upgrades

Security improvements

Access control and data protection

Whether moving to PostgreSQL, Firebase, AWS, or container-based infrastructure, we ensure a secure and smooth transition.

Your backend becomes more resilient and scalable.

Performance Optimization and Speed Improvements

Legacy systems often degrade in performance over time.

We optimize queries, reduce payload sizes, improve caching strategies, and fine-tune application logic to ensure faster load times and smoother interactions across devices.

Your product becomes noticeably faster and more efficient.

Safe Migration, Minimal Downtime, and Ongoing Support

Modernization and migration are handled carefully to avoid disrupting existing users.

We plan each step to minimize downtime and risk. After completion, we provide monitoring, support, and follow-up improvements to ensure long-term stability and success.

Your transition is secure, controlled, and reliable.

We work with the world's top companies

We work with the world's top companies

We work with the world's top companies

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

FAQ

}

Clear answers to your questions

Developers working on laptops inside the Neon Apps office

When should a business consider app modernization or migration?

Can modernization be done without rebuilding the entire product?

How does app modernization fit into Neon Apps’ services?

{

How We Work

}

{

How We Work

}

{

How We Work

}

Neon Apps employees exchanging ideas during a project meeting
Neon Apps employees exchanging ideas during a project meeting
Neon Apps employees exchanging ideas during a project meeting

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

1

Transparent Pricing

You get a clear and predictable budget from day one. No surprises, no hidden costs. We make sure you always know exactly where your investment is going.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

2

Reliable Delivery

You receive consistent updates throughout the entire development process. Our structured workflow keeps projects on schedule so you stay in control at every step.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

3

Ownership Mindset

We treat your product as if it were our own. Our team is proactive, detail oriented, and committed to delivering solutions that exceed expectations.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

4

Product First Approach

We focus on more than just development. Every decision is guided by user experience, long term scalability, and your business goals. Great products come from strong product thinking.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

5

High Quality Engineering

Your app is built with modern technologies, clean architecture, and best coding practices. This ensures speed, stability, and long term maintainability.

These are the reasons companies have trusted us with over 500 projects.

These are the reasons companies have trusted us with over 500 projects.

These are the reasons companies have trusted us with over 500 projects.

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

0

0

Projects Done

0

0

Happy Clients

0

0

Years Experience

0

0

Satisfied Clients

Got a project?

Let's Connect

Got a project? We build world-class mobile and web apps for startups and global brands.

Contact

Email
support@neonapps.co

Whatsapp
+90 552 733 43 99

Address

New York Office : 31 Hudson Yards, 11th Floor 10065 New York / United States

Istanbul Office : Huzur Mah. Fazıl Kaftanoğlu Caddesi No:7 Kat:10 Sarıyer/Istanbul

© Copyright 2025. All Rights Reserved by Neon Apps

Neon Apps is a product development company building mobile, web, and SaaS products with an 85-member in-house team in Istanbul and New York, delivering scalable products as a long-term development partner.