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Telegram API: lets you create your own customized Telegram clients. You can read Telegram’s open-source code to know how the platform works. I rode an electric bike to work, and here’s what I learned If you are using Telegram on your PC, Laptop, or another device, your secret chat is only visible to your device that you started it.

This update includes over 100 fixes and optimizations to the mobile and desktop apps – eliminating bugs, improving speed, and expanding minor features. iOS users with the latest iPhones and iPads get significantly smoother animations (120 FPS) throughout the app. Android users will notice better audio and video quality in voice and video messages, along with options to set alternative app icons, clear all recent stickers at once and translate user bios or chat descriptions. For maximum privacy, you can create secret chats that use end-to-end encryption. These aren't stored on Telegram's servers, so you can only access them with your specific phone. If one party deletes a message, it disappears on both devices. And you can specify a self-destruct period for all media if you like. Turn on Secret Chat Owners of public groups can enable join requests via Group Info > Edit > Group Type > Who Can Send Messages > select Only Members > enable Approve New Members.

Secret chats To do this, long-press on a picture you have sent. Choose the ‘Edit’ button on the top, just like you’d edit a text message once you have sent it. Now, you will get an in-built photo editor where you can add filters, draw or crop images. Alternatively, you can even replace the picture and send another one in its place. Any user can upload large files and media, each up to 2 GB in size and enjoy unlimited storage in the Telegram Cloud for free. With Telegram Premium, subscribers will now be able to send 4 GB files – enough space for 4 hours of 1080p video, or 18 days of high-quality audio. The encryption is based on 2048-bit RSA encryption, 256-bit symmetric AES encryption, and Diffie–Hellman secure key exchange.

Customize Theme and Message Corners To change the number you use with Telegram, open Settings (which is inside the left menu on Android). On iPhone, in the next menu, tap Edit in the top-right corner. This step isn't necessary on Android.