Instantbird is a cross-platform instant messaging client based on Mozillas XULRunner and the open source library libpurple used in Pidgin. Developed by Florian Quèze and Quentin Castier
License: Open Source
Instantbird is a lightweight, open-source messaging client focusing on multiple protocols, while Telegram is a feature-rich messaging app known for its security and large group functionalities. Telegram offers more modern features and a larger user base, making it more appealing for everyday communication.