Telegram is a popular messaging app that allows users to communicate with each other through encrypted chats, voice calls, video calls, group chats, channels, bots and more.
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DeveloperTelegram FZ-LLC
Released onSep 6, 2013
UpdatedMar 2, 2024
Size130.54 MB
RequirementsVaries with device
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Telegram: The Cloud-Based Messaging App with a Focus on Security and Speed

Telegram is a popular messaging program that enables users to interact with one another via encrypted chats, voice calls, video calls, group conversations, channels, bots, and other features. Telegram is well-known for its fast, dependable, and secure features, which set it apart from other chat programs. In this essay, we will look at what Telegram is, how it works, what its primary benefits and drawbacks are, and how to get started using it.

Table of Contents

  • What is Telegram?
  • How does Telegram work?
  • What are the main features of Telegram?
  • What are the pros and cons of Telegram?
  • How to use Telegram?
  • Conclusion
  • Frequently Asked Questions

What is Telegram?

Telegram is a cloud-based mobile and desktop messaging service that was developed in 2013 by brothers Pavel and Nikolai Durov, who also founded the Russian social network VK. Telegram claims to have over 500 million active users as of January 2023. Telegram’s major purpose is to create a fast, secure, and simple means for people to connect with each other.

Telegram is built on the MTProto protocol, which uses end-to-end encryption for secret talks and client-server encryption for cloud chats. This implies that only the sender and the receiver may read the messages in secret chats, whereas the texts in cloud chats are saved on Telegram’s servers and can be accessed from any device. Telegram also allows users to establish self-destruct timers for their conversations, delete communications for both parties, and make secret chat invitations that expire after a specific period.

Telegram is not only a messaging software, but also a platform for generating and sharing all forms of content. Users can build channels to broadcast messages to infinite subscribers, groups to chat with up to 200,000 members, bots to automate jobs and provide services, stickers to express emotions, and themes to personalize the app’s design. Users can also share and receive any form of media items, such as images, movies, audio, documents, contacts, places, etc., without any limit on their size or quality.

How does Telegram work?

Telegram operates by employing a distributed network of servers around the world to send messages faster and more consistently than other apps. Telegram also uses powerful encryption techniques to safeguard the security and privacy of its users’ data. Here is how Telegram works in greater detail:

  • When a user sends a message to another user or a group chat, the message is encrypted with a unique key and transferred to the nearest server.
  • The server then transfers the message to the recipient’s device or devices (if they have more than one) or to other servers if they are closer to the recipient.
  • The recipient’s device decrypts the message with the same key and shows it on the screen.
  • If the message is sent in a secret chat, the key is produced on the devices of both parties and never kept on the servers. If the message is sent in a cloud chat, the key is created by the server and saved in an encrypted form.
  • If the communication has a self-destruct timer or is destroyed by either participant, it is erased from both devices and from the server.
  • If the message is sent in a channel or a group chat with more than 200 people, it is encrypted with an additional layer of encryption called server-client encryption. This means that only the server can decode the message and send it to the subscribers or members.

What are the main features of Telegram?

Telegram includes several features that make it a flexible and effective chat service. Some of these characteristics are:

Secret Chats

Secret chats are one-on-one communications that employ end-to-end encryption and self-destruct timers. Secret conversations are not kept on Telegram’s servers and may only be viewed from the devices that created them. Secret chats also contain extra security features such as screenshot protection, message deletion for both participants, and secret chat invites that expire after a specified period.

Cloud Chats

Cloud chats are discussions that employ client-server encryption and are saved on Telegram’s servers. Cloud conversations may be accessible from any device that has Telegram installed and signed in with the same user. Cloud chats also provide certain benefits over hidden conversations such as limitless message history, media sharing without compression or size restriction, offline access, multi-device support, etc.

Voice Calls

Voice calls are encrypted voice interactions that employ peer-to-peer connections wherever feasible. Voice calls also employ artificial intelligence to minimize data use and increase sound quality. Voice calls may be initiated from any conversation simply touching on the phone symbol.

Video Calls

Video calls are encrypted video interactions that employ peer-to-peer connections wherever available. Video calls also employ artificial intelligence to minimize bandwidth use and increase video quality. Video calls may be started from any conversation by touching on the camera icon.

Group Chats

Group chats are discussions that may have up to 200,000 people. Group chats may be public or private, and can include moderators that can control the group’s settings, members, and messages. Group chats may also contain voice conversations, which are live audio broadcasts that can have limitless participants.


Channels are broadcast platforms that might have limitless subscribers. Channels may be public or private, and can have administrators who can submit messages, modify messages, remove messages, pin messages, etc. Channels may also feature voice conversations, which are live audio streaming that can have limitless participants.


Bots are accounts that are run by software and offer different services and tasks. Bots may be added to any conversation by inserting their username with the @ symbol. Bots may also be developed by anybody using Telegram’s Bot API.


Stickers are expressive graphics that may be transmitted in any communication. Stickers are arranged in sets that may be made by anybody using Telegram’s Sticker API. Stickers may also be animated and have sound effects.


Themes are changes that affect the look of the app. Themes may be produced by anybody using Telegram’s Theme Editor. Themes may also be shared and applied by other users.

What are the pros and cons of Telegram?

Telegram offers several benefits and cons compared to other chatting programs. Here are some of them:


  • Telegram is quick, trustworthy, and secure. It employs a dispersed network of servers to transmit messages fast and reliably, and uses powerful encryption methods to safeguard its users’ data.
  • Telegram is free and ad-free. It does not collect any fees or display any adverts to its users. It also does not sell or share its users’ data with other parties.
  • Telegram is diverse and strong. It has several features that make it a platform for generating and sharing different forms of content, such as channels, groups, bots, stickers, themes, etc.
  • Telegram is open and transparent. It includes an open API and source code that anybody may use to construct their own applications or services. It also provides frequent updates and news on its official blog and social media channels.


  • Telegram is not widely adopted. It has less users than other popular messaging apps such as WhatsApp, Facebook Messenger, or WeChat. This implies that some users may not have Telegram installed or may not use it regularly.
  • Telegram is not completely end-to-end encrypted. It only employs end-to-end encryption for secret talks, whereas cloud chats use client-server encryption. This implies that Telegram’s servers have access to the keys that encrypt the messages in cloud conversations, and might possibly be hacked by hackers or authorities.
  • Telegram is controversial and prohibited in various countries. It has attracted criticism and legal challenges from various countries and groups for its position on privacy, security, and freedom of speech. It has also been barred or limited in several countries like as Russia, Iran, China, etc.

How to use Telegram?

To use Telegram, you need to download the app from the official website or from your device’s app store. You also need to register with your phone number and verify it with a code that will be issued to you through SMS or voice call. After that, you may start using Telegram by:

  • Adding contacts from your phone book or by inputting their phone number or username.
  • Creating conversations with your contacts by pressing on the new message icon.
  • Sending messages by entering in the text field or by pressing on the attachment button to send media files.
  • Creating hidden conversations simply pressing on the new secret chat icon.
  • Creating group conversations simply tapping on the new group icon.
  • Creating channels simply tapping on the new channel icon.
  • Creating bots by utilizing Telegram’s Bot API or by adding existing bots from the bot shop.
  • Creating stickers by utilizing Telegram’s Sticker API or by adding existing stickers from the sticker shop.
  • Creating themes by using Telegram’s Theme Editor or by adding existing themes from the theme shop.


Telegram is a cloud-based messaging program that delivers quick, safe, and easy communication with many features and capabilities. Telegram is also a platform for creating and sharing other forms of content such as channels, groups, bots, stickers, themes, etc. Telegram is free and ad-free, but also controversial and prohibited in several countries.

Frequently Asked Questions

Here are some typical questions and answers concerning Telegram:

  • Q: Is Telegram safe?
  • A: Telegram is secure in terms of encryption and privacy, but not in terms of content moderation or legal protection. Telegram employs end-to-end encryption for secret conversations and client-server encryption for cloud chats, which ensures that your communications are safe from third parties. However, Telegram does not control or filter the material that is exchanged on its network, which means that you may encounter unlawful, dangerous, or objectionable content. Telegram also does not comply with various rules or regulations that may oblige it to divulge its users’ data or restrict its services in other countries.


  • Q: How can I remove my Telegram account?  
  • A: You may remove your Telegram account by utilizing the self-destruct option in the app’s settings or by visiting the deactivation page on the website. The self-destruct option enables you to define a period of inactivity after which your account will be automatically destroyed. The deactivation page enables you to manually remove your account at any time. When you cancel your account, all your messages, contacts, groups, channels, bots, stickers, themes, etc. will be deleted from Telegram’s servers.


  • Q: How can I backup my Telegram data?  
  • A: You may backup your Telegram data by using the export option in the app’s settings or by using the Telegram Desktop software. The export option enables you to store your messages, media assets, contacts, etc. in a ZIP file or an HTML page. The Telegram Desktop software enables you to sync your data across all your devices and view it offline.


  • Q: How can I contact Telegram support?
  • A: You may contact Telegram support by using the in-app help chat or by sending an email to The in-app support chat enables you to talk with a volunteer who can assist you with your troubles or queries. The email address enables you to make a full report of your issue or comments to the Telegram team.

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