Water Treatment System Sales Calculator 


Our client is globally recognized as one of the world’s largest manufacturers of water treatment systems. With a robust international network, they have established themselves as leaders in the industry, offering groundbreaking innovations and solutions.

Project Challenge

The sales department of our client had been relying on a third-party calculator app to perform essential calculations. However, this app did not meet the specific functionality requirements of the sales team, which hindered their ability to effectively handle clients and operations. Therefore, the challenge was to develop a custom Calculator App for both mobile and web platforms that would cater to the unique needs of our client’s sales department.

Project Objective

The primary objective of the project was to create a comprehensive Calculator App that would empower our client’s sales department to efficiently perform the necessary calculations for their clients and operations. The app was expected to offer enhanced functionality beyond what the existing app provided, enabling the sales team to streamline their workflow, improve accuracy, and ultimately enhance client satisfaction.

Project Solution

App Maisters had proposed a solution to develop a comprehensive app for clients on Android, iOS, and web platforms, accompanied by an admin panel. The app included features such as a splash screen, login, forgotten password, sign-up, dashboard with a calculator, and settings. The admin panel had provided user management, activity reports, taxation updates, and user invitation capabilities. This solution had aimed to deliver seamless user experience and efficient administrative functionality for the client.

Project Implementation

The implementation of the project for the client began with a collaborative approach and a thorough understanding of their business objectives. App Maisters worked closely with the client to meticulously plan and outline the structure, design, and functionality of the custom Calculator App. Throughout the project implementation, an Agile development approach was adopted. This approach involved multiple stages, including requirements gathering, design, concurrent development, testing, deployment, and maintenance. This iterative and collaborative process ensured that the final app had fulfilled the specific needs of the client and had delivered a high-quality solution.

Tools & Technologies.


  • Flutter Dart


  • Programming Language: .NET
  • Frameworks: MVC
  • Data Base: Sql Server
  • Notification: Google Firebase
  • Hosting: Go daddy
  • Web Server: IIS
  • Web Application Server: .NET Framework
  • API: Rest Api with 0 Auth, ASP .Net core, 2.0 Authentication
  • Admin: HTML/CSS (Bootstrap) & ASP.Net

Analytics: Google Analytics


Enhanced Calculation Capabilities: The Calculator App provided the sales department at Client’s Systems with advanced calculation functionalities, surpassing the limitations of the existing Costco calculator app. It enabled accurate and efficient calculations required for handling clients and operations.

Streamlined Workflow: With the app’s intuitive interface and user-friendly features, the sales team streamlined their workflow. They could quickly input values, perform calculations, and obtain accurate results, saving time and effort in manual calculations.

Improved Accuracy: The custom Calculator App reduced the chances of human error in calculations by automating the process. It ensured precise and consistent results, minimizing potential mistakes and improving overall accuracy.

Enhanced Client Satisfaction: By having access to a comprehensive calculator, the sales department could provide clients with accurate quotes, pricing, and other essential information promptly. This increased client satisfaction.