In Brief
- Creating a chat application such as Arattai gives a company the ability to provide personal messaging, group chats, media sharing, audio/video calling, and business communication through its unique platform.
- Some of the key features needed to build this type of application include safe user registration and authentication, instant messaging, group discussions, push notifications, media sharing, and privacy measures such as encryption and access control.
- It requires market research, requirement planning, UI/UX design, technology selection, frontend and backend development, feature integration, security testing, deployment, and maintenance.
- The cost involved in developing the application will be between $15,000-$30,000 for a basic app, $30,000-$80,000 for a mid-level app, and $80,000-$200,000+ for an advanced app. The development time required is 2-4 months for a basic app, 4-6 months for a mid-level app, and 6-12+ months for an advanced application.
- Technologies like Flutter, React Native, Node.js, PostgreSQL, MongoDB, WebSockets, and cloud hosting services could be used for app development. By building an MVP, focusing on necessary features, using appropriate third-party APIs, and partnering with experienced developers, one could keep costs low while ensuring security and scalability.
Messaging applications have grown to become a crucial component of communication and sharing information. Users nowadays require speed, safety, and ease of use of chat applications in both their private lives and work. The emerging demand has been the driving force behind businesses’ decisions to try developing messaging applications, including Arattai.
The app Arattai has received quite much publicity as a messaging application that integrates messaging, personal chat, group chat, and video and voice calls all in one place. This development of Arattai provides useful lessons for companies that want to develop their chat applications.
However, chat application development requires much more than the integration of messaging functionality. Companies should take into account the cost of development, user experience, security, backend requirements, and a suitable technology stack.
In this blog, we will explore how to build a chat app like Arattai, the essential features to include, the technologies required, and the expected development cost. We will also discuss practical ways to manage expenses and build an application that can grow with user demand.
What is Arattai, and Why are Businesses Building Chat Apps Like It?
Arattai is a messaging app that has been developed by Zoho to facilitate connection among users by engaging in personal chats, group chats, voice calls, and video calls. The term Arattai means “casual talk” in the Tamil language. It is an application that makes the process of communication easy for users while providing an alternative way of connecting online.
The reason behind businesses wanting to develop such an application is the need for instant and reliable forms of communication. Chat application development can be used for a variety of purposes, including customer relations, team communications, community creation, and communication services.
Here are some key reasons behind this interest:
- Increased demand for quick communication: Users should be provided with fast access to information.
- Needs of business communication: Specialized applications can be used for customer service and team collaboration.
- Privacy and security: It is possible to make user safety and secure data transmission a selling point for businesses.
- Customization: The application may be developed specifically for a certain group, sector, or type of communication.
- Monetization options: It is possible to introduce subscription services and business tools to create new revenue streams.
Creating an app like Arattai does not imply copying all its features. It is better to study your audience and provide them with valuable features.
Key Features to Include in a Chat App Like Arattai

Your choice of features will determine the user experience, development cost, and ultimate success of your chat application. Rather than incorporating all the possible features right from the start, concentrate on those that help communicate effectively and securely.
Here are six essential features to consider when building a chat app like Arattai.
User Registration and Login
User registration and login should be an easy process where users can opt for phone number verification, email authentication, and other secure login methods. Creating an easy registration process makes it easier for your users to start conversations without much hassle.
Real-Time Messaging
Real-time chatting is at the heart of a good chat application. The app must facilitate quick sending and receiving of messages, delivery status, as well as view chat history. The application should also work when there are network issues.
Group Chats and Media Sharing
Group chatting features are what allow users to engage with more than one person in a conversation. It is best if you include support for media such as images, videos, documents, and voice messages. There should be some admin control for groups.
Voice and Video Calls
Voice and video calls can be used to communicate with others in addition to text messages. Some features that may be included are clear audio and video quality, as well as stable connections. This feature can start as one-to-one and then be upgraded later on.
Push Notifications
Push notifications serve the purpose of alerting the user about new messages, missed calls, and activity in the group. Users must be able to control their notification settings and mute conversations so that they are not unnecessarily distracted by notifications.
Privacy and End-to-End Encryption
Privacy is one of the most crucial components in any messaging application. It must include secure user authentication, message encryption, and proper access controls. If you have decided to implement end-to-end encryption, take care to do so in such a way that only authorized parties can decrypt the encrypted messages.
Selecting the proper feature set right from the start will help you to control your development expenses while building a useful product.
How to Build a Chat App Like Arattai: Step-by-Step Development Process
Creating a messaging app is possible only through careful preparation, the correct choice of technology, and understanding user demands. Using a proper development strategy allows one to prevent extra costs and create an app that will have room for future improvements.
Step 1: Market research and requirements analysis
The first thing to do is to identify the target audience and understand what is expected from the messenger app. Analyze existing applications, determine their features, and identify ways to differentiate from them. Determine the purpose of the application, its key features, budget, and objectives.
Step 2: UI/UX design
The app should have an intuitive and convenient interface, making chatting fun. Design screens for registration, chat lists, single chat screen, group chat screen, and settings. Create wireframes and prototypes for testing the user flow before development.
Step 3: Select the Technology Stack
Choose appropriate frontend, backend, database, and real-time communication solutions. Your selected technologies must enable fast messaging, good performance, secure data, and future scalability. Appropriate technologies will vary depending on your budget and intended platforms.
Step 4: Build the Frontend and Backend
The frontend will include all the screens and functionalities that a user interacts with. The backend will contain all the account management, message delivery, contact management, and other application data storage and processing operations. Developers tie both pieces together to deliver messages in a reliable way.
Step 5: Incorporate Real-Time Features
These include real-time messaging, push notifications, media sharing, and other planned features. If you have voice and video calling, implement and test them.
Step 6: Testing, Deployment, and Maintenance of the Chat Application
Thoroughly test your app for any bugs, issues related to performance and security, as well as compatibility across different devices. When your chat application passes all the tests successfully, you can deploy it. Keep track of how it performs, and upgrade it in accordance with user feedback.
Good planning allows you to develop a chat application that will satisfy user needs without having to spend extra money on unnecessary features.
How Much Does It Cost to Build a Chat App Like Arattai?
The cost associated with building a chat app such as Arattai will be determined by a number of factors, including the nature of features to be included, design, technological architecture, security needs, and the location of the dedicated development team. The simple app will not require as much cost as the advanced one.
Here is an estimated development cost based on app complexity.
| App Type | Estimated Cost | Timeline |
| Basic chat app | $15,000–$30,000 | 2–4 months |
| Mid-level chat app | $30,000–$80,000 | 4–6 months |
| Advanced chat app | $80,000–$200,000+ | 6–12+ months |
Tech Stack Required to Build a Chat App Like Arattai

Choosing the right technologies is crucial when developing an efficient, safe, and robust chat app. It is necessary to choose those technologies that will enable real-time messaging, scaling, and a comfortable experience for users.
Below is a list of six technologies you need to consider when developing a chat application.
Frontend Development
The frontend is responsible for everything users see on the interface of the application. You can create cross-platform mobile applications using Flutter and React Native. To create native mobile applications, it is possible to use Swift and Kotlin for iOS and Android, respectively.
Backend Development
The backend is responsible for handling user accounts, messages, contacts, authorization, and application logic. An appropriate choice for event-driven applications is Node.js. There are also Java with Spring Boot and Python with backend frameworks.
Database and Storage
The chat application will require dependable storage for user profiles, messaging threads, messages, and any media that users send. PostgreSQL will be able to store the structured data, whereas MongoDB might fit the flexible data model well. Cloud object storage will store images, videos, and other types of documents.
Real-Time Communication
The real-time architecture will ensure that messages can travel from one user to another with minimal delays. The WebSocket protocol enables the client and server to communicate in both directions. The other protocols, like MQTT, may work depending on the messaging requirements.
Cloud Hosting and Infrastructure
Cloud services make it possible for your application to cope with fluctuating demand and provide reliable data storage. Various services available on Amazon AWS, Microsoft Azure, or Google Cloud Platform can offer hosting, database, storage, monitoring, and scalability capabilities.
Security and Encryption Tools
Security must be incorporated into the application from the get-go. Encrypt the data that is being transferred via TLS, utilize proper security mechanisms for authentication and access control, as well as data encryption. In case of providing end-to-end encryption, ensure you select an extensively reviewed crypto protocol.
How Long Does It Take to Develop a Chat App Like Arattai?
Development of chat applications such as Arattai will take some time depending on the features, level of difficulty, and testing that is involved. The more advanced the features, such as making calls, encryption, and compatibility with other devices, the longer the time needed for development.
Here is an estimated development timeline:
| Development Stage | Estimated Time |
| Research and planning | 1–2 weeks |
| UI/UX design | 2–4 weeks |
| Frontend and backend development | 6–12 weeks |
| Feature integration | 2–5 weeks |
| Testing and quality assurance | 2–4 weeks |
| Deployment | 1–2 weeks |
These stages may overlap, so the total project duration will depend on the team’s workflow and project scope.
The basic type of a chat application takes up to 2-4 months, whereas the medium level of an app takes 4-6 months. Advanced apps may take six months or even more.
In order to prevent any possible delays, you should be prepared from the very beginning by setting clear requirements and focusing on the most important features.
Challenges in Building a Messaging App and How to Overcome Them
Designing an instant messaging application is not just about making the application enable its users to send messages to each other. The application should stay secure, fast, and reliable as more people start using the application.
The following is a list of problems and solutions related to building an instant messaging application.
1. High Number of Users
As the number of users increases, the application will have to handle more traffic and connections. It should be prepared for that.
2. Deliver Messages in Real Time
Delayed messages can annoy the users. A proper message delivery system should be implemented to ensure messages are delivered on time.
3. Protection of User Data
Some messaging applications may contain personal messages, phone numbers, and other data. To minimize unauthorized access to this information, one should use authentication techniques, encryption technologies, access control measures, and security tests.
4. Improvement of Call Quality
Sometimes, voice and video calls can be impaired by a low-quality network connection and many other problems. One can solve this problem by using WebRTC, adaptive streaming technologies, and other media-related solutions.
5. Handling Storage and Media Files
One may face the challenge of the fast growth of storage because of images, videos, and documents. To handle storage, one can use cloud object storage, file compression technologies, and others.
6. Cross-Device Compatibility
Sometimes it may be necessary to test one application in different environments, such as different smartphones and operating systems.
Addressing all these challenges during the development process will result in a trustworthy messaging app. However, continuous monitoring and updates are also essential.
How to Reduce Chat App Development Costs Without Compromising Quality

The process of creating a messaging application may turn out to be quite costly, depending on the number of advanced communication tools included in the app. Nevertheless, companies have ways to limit their expenditures on software development without violating any necessary quality standards.
Here are six methods to help you save money on developing an application.
Start with an MVP
Create a product with essential features like user registration, one-to-one communication, notifications, and basic privacy settings. It is always better to test your app with the target audience before adding more complex functions.
Prioritise Essential Features
Identify which features should be implemented first and which ones could be developed afterwards. AI assistance, advanced chat customization, and sophisticated video calls could be implemented only after initial testing with actual users.
Choose Cross-Platform Development
Flutter and React Native are examples of frameworks which allow building apps for iOS and Android on a unified codebase. It will prevent duplicate open-source development efforts, but there might be some platform-specific features that require separate implementations.
Use Open-Source Technologies
Using open source frameworks, libraries, or development tools is a way to decrease costs associated with software licensing. Still, security, documentation, maintenance, and compatibility need to be evaluated first.
Leverage third-party APIs
Using third-party services for push notifications, authentication or voice and video communication allows saving the development time. Before integrating such a service, compare the prices, usage limits, security considerations, and possible vendor lock-in.
Hire an Experienced Development Partner
An experienced development partner will assist you in selecting a proper architecture, avoiding unnecessary features, and identifying technical risks upfront. Also, precise requirements and regular reviews of the progress are helpful in this situation.
Efficiency must never compromise security, reliability, and usability. Invest your budget in those elements which are most important to you, and then scale up the application based on users’ needs and business objectives.
Why Choose Markup Designs for Chat App Development?
A successful creation of a chat application presupposes choosing an appropriate technology, planning the development, implementing, and involving the right professionals that have a clear understanding of your goals. Markup Designs is a company that can assist businesses to implement their ideas into real applications that will be created according to the audience’s needs, features to be included, and budget. Thanks to 14+ years of experience, 200+ experts, and 500+ projects developed, the company has enough experience to work on any type of project.
At each step of the development process, from planning the application architecture and designing the user interface to development of messaging features and integration of suitable technologies, all the efforts are aimed at making the application reliable and convenient for users. Data security, performance of the application, and its future scalability are also taken into account.
Depending on whether you are going to launch an MVP or develop a full-featured messaging application, your preferences can be taken into account while planning the development process.
Have a Chat App Idea in Mind?
Turn your messaging app concept into a practical development plan. Connect with Markup Designs to discuss your features, technology choices, estimated costs, and next steps.

Conclusion
Apart from the communication aspect of the chat app, such as Arattai, there is a need to have a wide range of features, use appropriate technologies and security measures, as well as infrastructure to accommodate growing traffic.
The development budget and time for the app depend on the complexity, the number of platforms, and the security of the application. Starting with a minimum viable product and prioritizing necessary features and technologies would help with managing the upfront costs.
Moreover, maintenance and monitoring are essential components of making sure the application functions as required as users’ expectations evolve.
It is vital to figure out the purpose of the application and determine what features are needed in the first version. It will enable you to develop the application that will suit users’ needs and meet the company’s goals.
FAQs
1. How much does it cost to build a chat app like Arattai?
A basic chat app may cost around $15,000–$30,000, while a mid-level application may cost $30,000–$80,000. An advanced platform can cost $80,000 or more. The final price depends on features, technology choices, security requirements, and development rates.
2. How long does it take to develop a messaging app?
A basic messaging app may take 2–4 months to develop. A mid-level app can take 4–6 months, while an advanced application may require six months or longer, depending on its complexity and testing requirements.
3. Which tech stack is best for building a chat app?
The right stack depends on your project requirements. Flutter or React Native can support cross-platform mobile development, while Node.js or Java can handle backend services. PostgreSQL or MongoDB may support data management, and WebSockets can enable real-time communication.
4. Is end-to-end encryption necessary for a chat app?
End-to-end encryption is important when an app promises that only the communicating users can read their messages. It is not automatically required for every messaging product, but privacy expectations, user needs, and applicable regulations should guide the security design.
5. Can I launch a chat app with an MVP?
Yes. An MVP lets you launch with core features such as registration, one-to-one messaging, notifications, and basic security. You can collect feedback, validate demand, and add advanced features as your user base grows.
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