Summary

Arattai is an Indian instant messaging application developed by Zoho Corporation, launched in 2021 as a homegrown alternative to dominant foreign messaging platforms. Designed to cater to Indian users, the app emphasizes local language support, a simple and clutter-free interface, and secure communication features, including end-to-end encryption for voice and video calls. Arattai gained notable prominence in 2025 following strong endorsements from Indian government officials who promoted it under the Atmanirbhar Bharat initiative, which advocates for self-reliance through the adoption of indigenous technology solutions.
The app experienced a rapid surge in user adoption in September 2025, with daily sign-ups reportedly increasing from approximately 3,000 to over 350,000 within a few days, positioning it as a significant competitor to established messaging services like WhatsApp in India. Arattai supports multi-platform use across Android, iOS, desktop, and even Android TV, offering features such as group chats, media sharing, broadcast channels, and large-scale video calls, aiming to provide a comprehensive communication ecosystem tailored to Indian users’ needs.
Despite its growing popularity and government backing, Arattai has faced criticism over its privacy framework, particularly due to the absence of end-to-end encryption for text messages—a key security feature present in rival apps. Concerns have also been raised about transparency in its encryption practices and the implications of government involvement, including potential compromises on user privacy stemming from regulatory demands for message traceability.
Looking forward, Arattai is actively developing end-to-end encryption for text messaging and plans to expand its feature set to include payments and commerce integration, aiming to deepen its presence in both consumer and enterprise markets. Its trajectory reflects broader trends in India toward digital self-reliance and data sovereignty, while highlighting the challenges inherent in balancing security, privacy, and government policy objectives in emerging communication platforms.

History

Arattai, a messaging app developed by Chennai-based Zoho Corporation, was founded in 2020 and had a soft launch in early 2021. Initially tested internally among Zoho employees, the app aimed to provide a secure, simple, and Swadeshi alternative to dominant foreign messaging platforms, particularly targeting Indian users with its local language support and regional customization. The name “Arattai” derives from Tamil, meaning “casual chat” or “banter,” reflecting the app’s focus on informal conversation.
Despite its early launch, Arattai remained relatively unknown until 2025, when it experienced a sudden surge in popularity. This growth was fueled by multiple factors, including rising concerns over privacy policies of global messaging apps, government endorsements emphasizing the “Make in India” and self-reliance initiatives, and increasing social media momentum. Several Indian Union ministers, including IT and Railways Minister Ashwini Vaishnaw, publicly highlighted Arattai, signaling official support for the app and local technology solutions.
The surge in adoption peaked in September 2025, when daily sign-ups reportedly increased from around 3,000 to more than 350,000 within three days, causing significant strain on Zoho’s infrastructure and prompting rapid scaling of servers and capacity. This rapid growth positioned Arattai as a homegrown competitor to WhatsApp, capturing the attention of privacy-conscious users and businesses seeking Indian alternatives.
Although Arattai’s voice and video calls were end-to-end encrypted from the outset, its text messaging lacked full end-to-end encryption during this period, which remained a work in progress. The app was also noted for its minimal advertisements and clutter-free interface, aiming to prioritize user experience over aggressive monetization. Despite some early-stage technical challenges, such as UI lag and missing refinements, Arattai’s rise highlighted a growing trend towards self-reliance in Indian digital communication platforms.

Features

Arattai offers a comprehensive suite of messaging and communication tools designed to meet the needs of modern users while emphasizing privacy and seamless multi-device accessibility. The app supports one-to-one and group chats, allowing users to send texts, voice notes, photos, videos, documents, and other media securely within its platform. Additionally, Arattai enables voice and video calls that are end-to-end encrypted, ensuring secure real-time conversations.
One of the notable features of Arattai is its multi-platform support, which includes Android, iOS, Windows, Mac, Linux, and even Android TV. This extensive device compatibility allows users to sync chats and settings effortlessly across up to five devices, providing a hassle-free communication experience. The app also includes a personal cloud-like feature where users can save notes, links, and media privately, accessible from any connected device at any time.
Arattai further differentiates itself by incorporating stories and broadcast channels, catering to creators, influencers, and businesses who wish to engage audiences with ephemeral content and broad communication capabilities. Integrated video calls can accommodate up to 250 participants, complete with scheduling, link sharing, and session recording functionalities, making it suitable for both casual and professional use.
The app focuses on delivering a clutter-free and ad-minimal interface tailored to the Indian market, including local language support and regional customization. This approach addresses the unique needs of India’s rapidly growing digital ecosystem, where privacy concerns and usability are paramount. While voice and video calls currently benefit from end-to-end encryption, Arattai is actively developing similar encryption for chat messages to enhance user privacy further.
To ensure fast and reliable performance, Arattai utilizes a distributed server architecture that minimizes latency during messaging and calls. This technical foundation, combined with Zoho’s secure storage protocols, protects shared media and voice messages throughout their lifecycle. Users can also import conversations from other messaging apps, facilitating easier transitions to Arattai’s platform.

Technical Architecture

Arattai’s technical architecture is designed to support real-time, low-latency communication suitable for large-scale enterprise and consumer use. The platform employs a distributed server architecture, which enhances speed and reliability by minimizing lag during messaging and calls. This approach enables Arattai to handle concurrent connections efficiently, drawing inspiration from architectures used by established apps like WhatsApp, which can support over one million concurrent users on a single chat server.
The backend infrastructure is cloud-based, leveraging Zoho’s ecosystem or possibly public cloud services, with a strong emphasis on data localization to comply with Indian regulations. This distributed setup underpins Arattai’s capability to offer seamless synchronization across devices, including smartphones, tablets, desktops, and recently Android TV, supporting a unified user experience across platforms.
From a technology stack perspective, building a WhatsApp or Arattai-like messaging app generally involves a combination of real-time communication frameworks and databases optimized for fast data access and scalability. Commonly used stacks include Node.js with WebSocket for real-time messaging, coupled with Redis or Cassandra for caching and data storage, along with React Native for cross-platform mobile app development. Alternatively, Elixir with Phoenix Channels and PostgreSQL is also favored for its scalability and fault tolerance.
Arattai incorporates robust encryption and security measures to ensure user data privacy, aligning with its positioning as a “secure, simple, free” communication tool within the Zoho ecosystem. This focus on security is complemented by features such as message import from other chat apps, ephemeral stories, and minimal advertising to maintain a clutter-free interface tailored to Indian users. The platform’s architecture not only supports messaging but also integrates with Zoho’s productivity tools, framing Arattai as more than a messaging app but a secure communication layer embedded in enterprise workflows.

Official Support and Government Endorsement

Arattai has garnered significant official support and endorsement from various Indian government officials and ministries. This backing is part of a broader governmental push to promote homegrown digital solutions under the Atmanirbhar Bharat (self-reliant India) initiative, encouraging citizens to adopt Indian-made technology platforms as alternatives to global tech giants.
Several union ministers, including Ashwini Vaishnav, Dharmendra Pradhan, Nirmala Sitharaman, and Piyush Goyal, have publicly endorsed Arattai, highlighting its role as a secure, easy-to-use, and free messaging app tailored for Indian users. Dharmendra Pradhan, the Education Minister, specifically praised the app on social media, urging people to stay connected through “India-made apps,” thereby reinforcing the government’s message of digital self-reliance. Ashwini Vaishnav further demonstrated this support by citing Zoho’s products during a Union Cabinet briefing, noting that the presentation was prepared using Zoho Show instead of Microsoft PowerPoint, signaling a subtle but clear preference for domestic technology solutions.
This official endorsement has translated into increased visibility and adoption of Arattai, with a notable surge in downloads following these public promotions. The government’s advocacy of Arattai and other Swadeshi apps reflects a strategic effort to build a digital ecosystem that minimizes dependence on foreign platforms while fostering local innovation and data sovereignty.
Despite these endorsements, some experts have expressed caution regarding Arattai’s privacy architecture and the implications of government involvement. Legal analysts highlight the need for greater transparency about how user data is handled and whether it might be accessible to government authorities under Indian laws, which could affect user trust. Nevertheless, the promotion of Arattai underscores the Indian government’s commitment to advancing domestic technology as part of its broader economic and digital sovereignty objectives.

User Base and Popularity

Arattai has witnessed a rapid increase in its user base, driven largely by government endorsements and growing public interest in homegrown digital solutions. The app’s surge in popularity was notably amplified by Union Education Minister Dharmendra Pradhan, who actively promoted the use of domestic digital tools and specifically encouraged citizens to adopt Arattai as a secure alternative to foreign messaging platforms like WhatsApp.
This surge coincided with heightened concerns over privacy and data security following WhatsApp’s updated terms of service, prompting many users to explore alternative platforms. In September 2025, Arattai experienced an exponential rise in daily sign-ups, reportedly increasing from approximately 3,000 to over 350,000 within just three days. This rapid growth led to significant strain on Zoho’s infrastructure, necessitating swift scaling of servers to accommodate the influx. During this period, Arattai ascended to the top position in the “Social Networking” category of Apple’s App Store in India, reflecting its widespread adoption.
Social media discussions and viral trends further contributed to the app’s popularity, with users frequently comparing Arattai to established messaging services. However, despite this momentum, some experts have expressed reservations regarding the app’s privacy framework and data-sharing policies, suggesting that uncertainty in these areas could affect user confidence in the long term.

Funding and Partnerships

Arattai, founded in 2020, benefits from the robust backing of Zoho Corporation, a well-established technology company known for its extensive suite of business software serving over 130 million users worldwide. Zoho’s founder, Sridhar Vembu, has emphasized a strategic approach to growth by focusing on regionally grounded investments and developing technology solutions that address local needs, such as Arattai, which aligns with his vision of creating Indian alternatives to multinational IT giants.
The company’s funding approach reflects a deliberate and relationship-driven philosophy, where capital partners are not merely investors but collaborators in building strategically structured, long-term ventures. This model extends to Zoho’s broader business ecosystem, where the integration of real estate, startup scaling, and public-sector contract partnerships demonstrates a comprehensive strategy to support growth and innovation.
Furthermore, Zoho’s commitment to privacy and data security has been highlighted by insiders as a core company principle, reinforcing trust in Arattai’s development and operations. This ethos positions Arattai as a credible and secure messaging platform supported by a parent company that prioritizes user privacy alongside technological advancement.

Comparison with Other Messaging Apps

Arattai has positioned itself as a promising homegrown alternative in India’s competitive messaging app landscape, particularly when compared to established platforms like WhatsApp. While it offers a variety of modern messaging features such as cross-device accessibility across smartphones, tablets, and desktops with synchronized settings, contacts, and messages, it also supports importing conversations from other chat apps, facilitating smoother transitions for users switching from platforms like WhatsApp and Telegram.
Despite these advantages, Arattai currently lacks end-to-end encryption for text messages, a critical security feature that ensures only the sender and receiver can read messages, preventing even the app provider from accessing user communications. This absence remains a significant gap compared to competitors such as WhatsApp, which have long implemented this encryption standard. The lack of such robust encryption has led to questions about the app’s suitability for confidential or sensitive discussions, especially among government officials or national security contexts.
Moreover, interoperability—the ability of messaging software to work seamlessly with other platforms—has been identified as an important aspect for future development of Arattai. Efforts to improve integration with existing ecosystems could enhance user experience and broaden adoption, but these remain areas for further advancement.
While Arattai has garnered official endorsements from Indian government figures, who have highlighted its ease of use, security, and cost-free model, it still faces challenges to fully compete with well-established rivals. The ongoing development, including potential improvements in encryption and interoperability, will be key to determining its future position in the messaging app market.

Challenges and Criticisms

Despite gaining significant attention and official endorsements, Arattai faces several challenges and criticisms that impact its position as a viable alternative to established messaging platforms. One key concern is related to its security and privacy framework. Unlike WhatsApp, which offers end-to-end encryption (E2EE) for both calls and text messages, Arattai currently provides E2EE only for voice and video calls and not for text messaging. Although the developers have announced plans to implement end-to-end encryption for texts, there is no clear timeline or detailed technical disclosure regarding its rollout.
Critics have pointed out that Arattai’s claims of being “secure” and “privacy-first” lack transparency and independent verification. The app does not publicly share any third-party security audits, technical whitepapers, or open documentation explaining how its encryption works or will be implemented in the future. This opacity raises concerns over the robustness of its security measures and the potential risks to user privacy.
Furthermore, there is ongoing debate about the government’s influence on the app’s design priorities. Indian authorities have expressed a desire to maintain traceability of messages for security reasons, which could conflict with the principles of end-to-end encryption that protect user privacy. Media experts warn that prioritizing traceability without strong encryption could compromise privacy and expose users to risks.
Arattai also faces the challenge of differentiating itself beyond messaging by positioning as a secure communication layer integrated into Zoho’s ecosystem, aiming to drive productivity rather than viral growth. However, despite growing popularity and government endorsements, including praise from the Union Education Minister Dharmendra Pradhan and increased infrastructure scaling in response to a surge in users, Arattai has yet to fully establish itself as a robust alternative to entrenched global platforms like WhatsApp.
Lastly, as with any software heavily reliant on open source components, the security of Arattai’s underlying codebase remains crucial. Conducting open source software audits is essential to identify and mitigate vulnerabilities that could be exploited, yet there is no public indication that such rigorous assessments have been undertaken or disclosed by Arattai’s developers. This lack of transparency adds to the skepticism surrounding the app’s readiness for widespread, secure adoption.

Future Developments

Arattai’s future roadmap emphasizes expanding beyond basic messaging to include a suite of integrated tools aimed at enhancing enterprise communication and user engagement. Industry experts foresee that Arattai could experience exponential growth—potentially increasing its