iPhone Apps to Voice Call

Whaller is a secure and private team collaboration platform that enables organizations to create their own internal social networks, ensuring data privacy and control away from public social media platforms. It offers a comprehensive suite of tools for communication, file sharing, task management, and project organization.

Facebook Messenger is the official messaging application from Facebook, enabling users to connect with friends and family through text, voice, and video calls, as well as group conversations and media sharing.

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.

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.

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.

WhatsApp Messenger is a widely used free messaging and calling app, available globally. It enables communication through text, voice messages, and video calls, facilitating connections between individuals and groups across various devices and platforms.

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 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.

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.