Sigma Messenger is a free messaging app that uses Telegram API and added some extra features to the official Telegram app which the most important is a very strong Anti Blocking system for some countries which are blocking Telegram and:

• Translate your conversations into 50+ languages.
• Preview recieved messages without opening the chat, scroll up and down between them and even forward them to your contacts.
• Go to the first message of your chat by clicking Beginning button.
• Multiple Pinned Messages: you can now pin multiple messages in any chat.
• Separate Contact Tools in the main menu, which includes Mutual contacts, ID finder and People nearby.(main menu)
• Requesting for a confirmation before sending GIFs and Stickers.(Sigma setting, the last option of settings)
• Turning off Sigma with just clicking on one button(the last option of main menu)
• Change your conversation date into Solar Hijri date.
• Partial copy of conversations.
• Prebuild separated tabs for chats.
• Multi-account (up to 7).
• Forward messages without quoting. Edit messages captions before forwarding.
• Show the Telegram ID of the person you are chatting with.
• Add some fonts.

Telegram Channel: https://t.me/socialsigma
Support Telegram ID: https://t.me/socialsigmasupport