Give your app a fresh start

Legacy App Rewrite

Is your mobile app no longer meeting your business goals? Or is it technically outdated and hard to maintain? We help you rewrite or migrate your legacy mobile app by using the latest technology stacks.

Contact us
Contact us
Legacy app rewrite header image - immovlan app

Why rewrite your mobile app?

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Stay competitive

Keep you app secure, maintainable and adaptable with state of the art technologies like Flutter or React Native.

user centricity mobile icon

Improve user experience

Update your app’s design and features to meet today's needs and expectations of your users.

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Increase performance

Get rid of technical debt to improve your app’s performance, reliability, and security.

Our legacy app rewrite process

Transforming your legacy app starts with a clear plan. We assess your current app, identify areas for improvement and apply the latest technologies to rebuild your app:

Project in the spotlight: Immovlan

Immovlan now sees around 70 % of its users on mobile devices. After partnering with ACA Group to completely rebuild their app in Flutter, Immovlan achieved outstanding results: 

  • +50% daily visitors
  • + 25% new users
  • x3 total screen views
  • x2 views per session

💜 Users love the new app’s faster loading speed. The search and map run smoothly, and the clean design makes it easy to use.

Immovlan mobile app example

Our other mobile projects

Streamlined connectivity for Renson’s remote apps

Renson, a manufacturer in the outdoor living and climate control sector, needed a centralized solution to manage patio covers, shading, lighting, heating, and air quality systems across diverse hardware and networks. ACA Group developed integrated control applications that ensured reliable connectivity and unified system management. During COVID-19, a CO₂ monitoring feature was delivered within two weeks, resulting in faster product innovation and improved indoor and outdoor environmental control.

Renson smart home app
Renson smart home app
RENSON_logo_without slogan

From mobile charging app to data-driven innovation: our collaboration with MobilityPlus

MobilityPlus, a provider in the electric vehicle (EV) charging and sustainable mobility sector, needed to evolve from a standalone mobile app to a scalable digital platform but lacked a unified data and application architecture. ACA Group built an integrated digital ecosystem with a mobile app, web portal, Azure data platform, and AI-driven solutions. This enables data-driven operations, improves scalability, and supports business growth while strengthening MobilityPlus’ market position.

ev charger
ev charger
MobilityPlus logo

Teamleader: the ultimate app for seamless contact and customer management

Teamleader, a SaaS provider in the CRM and business management software sector, wanted to improve mobile access to contact and customer management but lacked a seamless on-the-go user experience. ACA Group developed a user-friendly mobile CRM app that enables teams to manage the full sales cycle, including contacts, meetings, and appointments. This mobile solution increases productivity, improves data accessibility, and ensures real-time visibility into sales activities.

woman using mobile phone
woman using mobile phone
logo teamleader

Streamlined connectivity for Renson’s remote apps

Renson, a manufacturer in the outdoor living and climate control sector, needed a centralized solution to manage patio covers, shading, lighting, heating, and air quality systems across diverse hardware and networks. ACA Group developed integrated control applications that ensured reliable connectivity and unified system management. During COVID-19, a CO₂ monitoring feature was delivered within two weeks, resulting in faster product innovation and improved indoor and outdoor environmental control.

Renson smart home app
Renson smart home app
RENSON_logo_without slogan

From mobile charging app to data-driven innovation: our collaboration with MobilityPlus

MobilityPlus, a provider in the electric vehicle (EV) charging and sustainable mobility sector, needed to evolve from a standalone mobile app to a scalable digital platform but lacked a unified data and application architecture. ACA Group built an integrated digital ecosystem with a mobile app, web portal, Azure data platform, and AI-driven solutions. This enables data-driven operations, improves scalability, and supports business growth while strengthening MobilityPlus’ market position.

ev charger
ev charger
MobilityPlus logo

Teamleader: the ultimate app for seamless contact and customer management

Teamleader, a SaaS provider in the CRM and business management software sector, wanted to improve mobile access to contact and customer management but lacked a seamless on-the-go user experience. ACA Group developed a user-friendly mobile CRM app that enables teams to manage the full sales cycle, including contacts, meetings, and appointments. This mobile solution increases productivity, improves data accessibility, and ensures real-time visibility into sales activities.

woman using mobile phone
woman using mobile phone
logo teamleader
Check out all our mobile projects
Check out all our mobile projects
Need mobile expertise?

Contact our mobile experts

Talk to Jurgen and discover how ACA Group can support your mobile journey.

Jurgen Geys
Need mobile expertise?

Contact our mobile experts

Talk to Jurgen and discover how ACA Group can support your mobile journey.

Jurgen Geys
Need mobile expertise?

Contact our mobile experts

Talk to Jurgen and discover how ACA Group can support your mobile journey.

Jurgen Geys
Need mobile expertise?

Contact our mobile experts

Talk to Jurgen and discover how ACA Group can support your mobile journey.

Jurgen Geys

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