モバイルインテグレーション事業

Rich Technology Assets One Stop Mobile SI Service Site Porting for Mobiles Smart App Development
With vast experience and knowledge of mobile carriers and devices built over the years, we provide cutting edge mobile systems.


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We offer a one stop service from planning to development for building mobile sites, developing mobile apps, and developing systems that interact with mobiles.

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We construct high quality sites
at a low cost in a short period
of time by utilizing our cultivated
knowledge and expertise in
Japanese market.


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Our strength lies in developing native apps that utilize a device's features, and web apps using HTML 5 technology as well as apps that integrates with web systems.

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Rich Technology Assets

It is essential to have a cumulative base of technical skill, vast experience over the years, and information about carriers and devices in order to build a highly credible mobile site. We offer the best system for you by taking advantage of our experience and technology fostered over many years.
C-Square also uses standardized frameworks, elaborately designed and developed common modules, and knowledge management to solve any problems. We can also offer speedy and reasonably priced services by reutilizing pre-developed modules.
Standard frameworks include various logics and common functions reducing the amount of code required to implement something new, resulting in enhanced quality.
We further reduce deviations from specifications due to confirmation misses or misunderstandings by performing an F&G analysis based on our past documents created over the years as a way to make system development efficient and to increase productivity.

We build highly reliable and accurate mobile systems for sites geared towards original mobile technology, official sites for 3 major carriers (docomo, au, SoftBank), iPhone/Android sites with HTML 5.

Providing a One Stop Service from Design to Operation

We offer a one stop service from planning to development, for building mobile sites, developing mobile apps, and developing systems that integrate with mobiles.
We not only meet your needs, but also aim to embody a 'vision for future services' within mobile sites considering your business model in the long term.

Mobile Site Development Experience

We have built many mobile sites from the ground up and renewed various existing sites.
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Official Sites
  • Download Service
  • Major consumer electronic manufacturer
  • Communication site
  • C-Square’s cross-carriers official mobile site
Original Sites
  • News Service
  • Major News Site
  • Portal
  • Enquete ASP
  • Marketing Company
EC Sites
  • Major underwear manufacturer mobile EC site
  • Major convenient store chain mobile EC site
  • Major apparel company mobile EC site
Mobile CRM
  • CRM for au mobile phone maker
  • CRM for Softbank mobile phone maker
  • Mobile enquete service site
  • Major mobile campaign site
  • Paid cross-carriers official mobile site

Application Development for Smart Devices

We provide customized app development services for smartphones and smart devices.

Since 2012, we are participating in Mfi(Made for iPhone, Made for iPad) program of Apple Inc to fully utilize the device capabilities to create sophisicated applications.

We provide the most suited smart device app that uses unique smart device functions and controls including B2C apps, business utility apps gor enterprises such as internal e-learning apps, and Mobile Office.

We provide smartphone apps that include everything from porting existing content to mobile e-commerce apps.
For enterprise smartphone apps, we specialize in developing apps that make use of APIs to integrate with backend business systems.
We can develop a custom application for your business that seamlessly links to your backend business system.
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Proprietary Packages

We developed proprietary system packages based on customer demands using web/mobile systems developed in the past in order to deliver solutions to you at lower costs with a quicker delivery.

Clever Clicks

Clever Clicks

Multilingual CMS
A multilingual CMS package that can improve operational efficiency through the integrated management of domestic/overseas sites.

Cross Channel

Cross Channel

Mobile CRM
A CRM package that provides advanced analysis functions and mobile content platforms for the 3 major carriers (docomo, au, SoftBank).

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