Does not support Secret Chats

[roseline371274]

Historically, official desktop clients do not support Secret Chats due to the complexity of E2EE key management across non-mobile, multi-session environments, though some experimental versions might.
Offer the unique feature to Export Telegram data, allowing users to download their entire cloud chat history and media locally.
Web Client:
Relies heavily on browser capabilities for caching data.
Data is primarily accessed dynamically from Telegram's cloud servers.
User Data Control and Portability
The Telegram app empowers users with several ways to control their data:

In-App Deletion: Users can delete messages for themselves or for both telegram data parties in a one-on-one chat, effectively removing them from Telegram's servers (for Cloud Chats) or both devices (for Secret Chats). They can also leave/delete groups and channels.
Account Auto-Deletion: The ultimate control to remove all data associated with an inactive account.
Data Export: Via the desktop client, users can export their entire chat history and media, providing a robust mechanism for data portability.
Conclusion
The "Telegram data app" represents the user's primary interface to their digital life within Telegram. It is designed to prioritize speed, reliability, and user control. Through sophisticated local storage management, robust encryption (E2EE for Secret Chats, client-server for Cloud Chats), and extensive user-configurable privacy settings, the Telegram app aims to provide a secure and private messaging experience. However, understanding the distinctions between cloud and secret chats, the role of local encryption, and actively managing in-app settings are all critical for users to fully leverage the privacy features offered by the Telegram data app across their various devices.