ICQ software (version 10.0.35561.0) is a messaging and video chat app that allows s to communicate with each other via text, voice, and video calls. The software also offers file sharing capabilities, allowing s to easily send and receive documents and images. Additionally, ICQ has a variety of customization options, including the ability to change the interface theme and add personal status messages. Finally, the software offers end-to-end encryption for secure messaging.