Introduction

Telegram is an instant messaging app that is globally renowned for its speed, security and simplicity. Known to be among the world's top 10 most downloaded apps, it truly separates itself from the pack with over 800 million active users. Leveraging a unique, distributed network of data centers across the planet, Telegram allows you to stay connected and synced across all your devices at all times.

Feature

Speed: Telegram, leaving its competitors far behind, takes pride in being the fastest messaging app on the market.

Syncing: With Telegram, the ease of accessing your messages from all your devices, be it phones, tablets, or computers is a real game-changer. The apps are standalone, freeing you from the need to keep your phone connected at all times.

Unlimited: Restrictions on media and file types? Size limits? These phrases are alien to Telegram. All of your entire chat history, large videos, and documents of any type, up to 2 GB each, are securely stored in the Telegram cloud for as long as you need.

Private & Secure: Treating your privacy as a top priority, Telegram employs 256-bit symmetric AES encryption, 2048-bit RSA encryption, and Diffie–Hellman secure key exchange techniques, to guarantee the fidelity of your chats, groups, and media.

Cost & Open Source: It's hard to believe that an app this powerful is totally free, isn't it? But it's true! Besides, Telegram provides a fully documented and free API for developers and has open source applications.

Powerful: Imagine sharing large videos, documents of any type, up to 2 GB each or establishing group chats with up to 200,000 members. These features are not just imagination, Telegram made them real!

Reliable: Need to deliver a message on a weak mobile connection? Telegram has got you covered.

Fun: Telegram pays huge attention to the visual aspect of communication too. With its magnificent photo and video editing tools, animated stickers and emojis, fully customizable themes and an open sticker/GIF platform, conversations here are pure joy.

Simple: Complexity can be off-putting but certainly not in the case of Telegram which maintains simplicity without compromising its interface.

Private: Meant for those who are serious about maintaining confidentiality of their data, Telegram offers Secret Chats where your disappearing content— messages, photos, videos, can go unnoticed.

Cons

The app cannot be used without a mobile number.

Despite its rich features, Telegram doesn't support voice or video calls yet, which is a key offering by many of its competitors.

Although it excels in many areas, one thing where it lags behind is that it can sometimes be too advanced for new or casual users to understand.

Usage Tips

To make the best use of Telegram, consider setting up bots for specific tasks which helps automate your workflow. Always remember to use Secret Chats for sharing sensitive data securely. Given the app's synchronization ability, don't forget to take advantage of using it across your devices for better convenience. Recently, Telegram has also rolled out voice chats in channels for unlimited participants which can be used for hosting large scale discussions or talks.