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Another useful feature is “send without sound”. It is rather self-explanatory: you can message friends freely when you know they are attending an important meeting, studying, or sleeping. Recipients will get a notification as usual, but their device won’t make sound, even if it is in general mode. This feature allows you to filter out and put personal chats, channels, groups, contacts in different and customized folders. You can customize folders the way you want, plus there are some additional features. For example, you can have all chats with unread messages automatically added to a folder. Telegram offers two types of APIs for developers. Both are free of charge. Telegram is a great all-around messenger, especially when you start using its best features and know everything it's capable of.

Lock Your Chats 1b Adaptive (Android) or Automatic (iOS): The mode will automatically switch based on the light level around you; you can define the threshold. Pin Messages in Channelsb Next up, tap Sound and then choose your custom notification sound located under the Telegram Tones section. Make sure to tap Done at the top right to finish. Interestingly, Telegram names your custom notification sound as Cloud Tone and also allows you to upload any audio as a notification sound for a chat.

The Bot API is a free and open platform, available to everyone. If you're looking to build your own bot, check out this page. That’s far from saying Telegram will protect you from all privacy terrors the online world presents — you should check out our Android privacy guide for a broader look at that. Telegram just offers a good marriage of popularity and security for those with concerns over other messaging apps.

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