Australia's Leading Custom Software, Apps, Integration & Database Developer

Mobile App Upgrades and Redevelopment

Keep your mobile app up-to-date and competitive with C9's mobile app upgrades and redevelopment services.

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Evolve Your Mobile Apps to Drive Growth

As a leader, you know you must continually improve your mobile apps to provide value to users and stay competitive. But major upgrades and redeveloping aging apps requires significant resources.

C9 provides specialised expertise in mobile app upgrades and redevelopment. For over 15 years, we have helped organizations revitalize and transform under-performing apps by:

  • Redesigning UX to increase engagement
  • Implementing new features users want
  • Migrating to new frameworks and languages
  • Optimizing performance and security
  • Adding connectivity to back-end systems
  • Providing ongoing maintenance and support

We become an extension of your team to breathe new life into your mobile apps. Our process ensures regular collaboration so the end product achieves your business goals.

Increased Engagement

By redesigning apps to be more intuitive, user-friendly, and incorporating highly demanded features, we are able to significantly boost user engagement during upgrades and redevelopments.

Reduced Churn

Implementing new features users have been requesting along with overhauling outdated UX through the upgrade process enables higher user retention over the long-term.

Faster Performance

Migrating legacy apps to newer and faster development frameworks as part of redevelopments vastly improves the speed and reliability of apps, delivering superior UX.

Enhanced Security

Redeveloping aging apps provides an opportunity to build in robust security measures such as authentication, authorization, data encryption, and other protections missing in legacy apps.

Lower Costs

The costs involved in redeveloping or significantly upgrading existing mobile apps is far more affordable compared to building completely new apps from the ground up.


What Our Clients Say

Hear from business owners and executives who have trusted us to build their custom software solutions. 

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“We have been working with C9 for close to 3 years. During this time C9 have helped us develop and maintain our website to our needs in a professional manner. They assisted with our online application process resulting in a streamlined process for our online customers. C9 has produced a cost effective solution to meeting our online sales and exposure.”

Phil McMaster, Director - Car Loan Xpress

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"C9 is a very capable web design and technology company with a vibrant and enthusiastic team. In my experience C9 provide innovative & creative solutions, a high level of customer service and excellent communication. I find C9 to be very reliable and accessible. The team at C9 has a strong awareness of an individual’s needs, how to optimise growth potential and the evolving needs of a strong web presence. I highly recommend C9."

CARLTON COX, Owner - &

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"C9 updated and upgraded our rusty old site to a more user friendly format. Our site is unique with international clients and visitors, capturing book sales orders from around the world, proprietary site newsletter capabilities, and a large volume of past articles and newsletters. Ongoing support has been very good. Marcus Eddy is thorough and professional, and a pleasure to work with."

DAVID TANZER, International Lawyer Owner & Director - David A Tanzer & Associates, PC


Trusted by Some of Australia's Leading Businesses.

See who we've helped build successful custom software solutions for.

Price Waterhouse Cooper
Rud Group
Australis Asset Advisory Group
Delta Panels
Inner Range
Brisbane Markets Limited
Avocados Australia
Sulzer Group
Commercial Radios Australia
CSIRO Data 61
Compare the Market
University of Queensland
Professional Hospitality
ISG Funds
Bonney Group
Specialist Electrical Solutions
Projects & Case Studies Monitor

We Believe Our Work Speaks for Itself. 

See how we've helped businesses of all sizes achieve their goals with custom software solutions.

Our Work

Give Your App a New Life

Schedule a free consultation to learn more about how our team of experienced software developers can help you redevelop or upgrade your mobile app to improve its performance, features, and user experience.

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The C9 Advantage

C9 is dedicated to delivering high-return projects, and we take pride in our client’s long-term loyalty. This is a testament to our quality, professionalism, and the exceptional experience you can expect when working with us.

  • Customised approach
  • Expert Team
  • End-to-end Services
  • Focus on User Experience
  • Ongoing support and maintenance
  • Proven Results 
  • Exceptional Experience
  • Customer-First Mindset

Start Your Project

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Frequently Asked Questions About Mobile App Modernisation

First we perform an assessment to identify areas for improvement. Then we re-architect and rebuild apps using current platforms, frameworks, design patterns and device capabilities while reusing stable backend services.

We have proven processes for smoothly migrating and transforming an app's user data, content, images, documents, metadata, scripts, etc. to new structures with no disruption.

Our design experts conduct user research, develop wireframes and prototypes, and apply the latest UX best practices to overhaul the user experience and interface for optimal usability.

Mobile App Redevelopment & Upgrades: Stay Ahead of the Curve

Our team of experts can help you redevelop or upgrade your mobile app to ensure that it remains competitive and meets the needs of your users.