iPhone Apps to Group chat

Imo is a free instant messaging and video calling application designed for global reach, prioritizing reliability, particularly in regions with unstable network conditions. It offers features like voice and video calls, chat, group messaging, and various multimedia sharing options.

Signal is a secure, open-source messaging application that uses end-to-end encryption to protect user communications. It offers text messaging, voice and video calls, group chats, and file sharing, all with a strong focus on privacy and security. Available on multiple platforms, Signal is a leading choice for individuals prioritizing confidential conversations.

Viber is a comprehensive messaging and VoIP application enabling free and secure calls and messages to users worldwide. It offers robust features for both individual and group communication across various devices.

Trillian is a versatile, multi-protocol instant messaging client that unifies various communication platforms like IRC, XMPP, and more into a single, user-friendly interface. It's designed for both personal and team collaboration, offering features like encrypted chats, group collaboration tools, and extensive customization options.

Snapchat is a dynamic mobile application renowned for its ephemeral messaging and creative filters. It allows users to share photos and videos, enhanced with augmented reality lenses and effects, that disappear after viewing. Beyond simple communication, it offers features like Stories, Discover for news and entertainment, and Snap Map for location sharing.

Tox is a free, open-source, and secure peer-to-peer instant messaging and video calling protocol designed for strong privacy and censorship resistance. It provides end-to-end encrypted communications without reliance on central servers.

Slack is a leading cloud-based platform designed for team communication and collaboration. It offers a central location for conversations, file sharing, and app integrations, enabling teams to work more efficiently and stay connected regardless of location.

Matrix is an open network for secure, decentralized real-time communication. It provides a flexible protocol for developers to build collaborative applications like instant messaging, VoIP, and video conferencing, enabling seamless communication across different service providers.

Google Plus was a social networking service operated by Google. It aimed to integrate various Google services and create a more unified social experience around content sharing and community building.

Telegram is a fast and secure cloud-based instant messaging platform offering robust privacy features, large group support, file sharing, and cross-platform synchronization, making it a versatile communication tool.

Google Hangouts was a versatile communication platform offering instant messaging, voice and video calls, and SMS capabilities directly from web browsers and mobile devices. Integrated deeply with Gmail and other Google services, it provided a convenient way to connect and collaborate across various platforms.

Voxeet is a robust web conferencing platform that elevates virtual collaboration with its unique high-definition 3D audio technology, providing an immersive meeting experience. It offers a comprehensive suite of communication tools, including video conferencing, screen sharing, integrated file sharing, and various chat functionalities, designed to facilitate seamless interaction for teams of all sizes.

Threema is a secure and private messaging application that prioritizes user anonymity and data protection. It offers end-to-end encryption for all messages, calls, and files, requiring no phone number registration to enhance privacy.

Skype is a versatile communication platform offering free voice and video calls to other Skype users, as well as affordable calls to landlines and mobile phones worldwide. It provides instant messaging, file sharing, and screen sharing features, making it a comprehensive tool for personal and professional connectivity across various devices.

Steam is the leading digital distribution platform for PC gaming, offering a vast library of titles ranging from AAA blockbusters to indie gems. It provides a comprehensive ecosystem for gamers, featuring integrated chat, community features, achievements, and automatic game updates, alongside functionalities like controller support and streaming.