Apps with 'VoiP Calls' feature

An encrypted messaging app focused on privacy, supporting texts, calls, photos, videos, files, and group chats, with no ads or trackers.

Experience instant messaging with remarkable speed and robust security. Join massive group chats or channels. Enjoy free and advanced features.

A secure collaboration app with end-to-end encryption and interoperability across web, desktop, and mobile. Includes chat, voice, and video calls.

Facilitates device communication, enabling notifications, SMS replies, file sharing, and remote control across multiple operating systems.

A versatile platform for text and voice communication, featuring topic-specific channels, customizable moderation, and smooth low latency interactions.

Open protocol for decentralized, end-to-end encrypted communication supporting instant messaging, VoIP, IoT, data persistence, and silos bridging over federated servers.

Pidgin is a chat program which lets you log into accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on XMPP and sitting in an IRC channel at the same time.

With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with friends and loved ones without anyone else listening in.

Instant messaging with text, voice, video calling, screen sharing, privacy controls, customizable permissions, moderation, bots, and open-source design.

Open source, low-latency voice chat offering high quality audio, secure encryption, self-hosting, in-game overlays, positional audio, and granular permissions.

Facilitates teams' real-time collaboration with versatile chat interface and advanced search in configurable channels across multiple platforms.

SimpleX - the most private and secure chat and applications platform - now with double ratchet E2E encryption! Built on Haskell with Love and Coffee.

Free messaging without SMS fees, web sync, and multimedia sharing, supporting group and video chats, available on iPhone, Android, and desktop.

Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.

Extensible offline AI platform with user-friendly interface, LLM runner support, RAG inference, privacy focus, no registration, text-to-image, cloud sync, and dark mode.

Use crystal clear sound to communicate with your team mates cross-platform with military-grade security, lag-free performance & unparalleled reliability and uptime.

It is the brand new, and fastest ever, Matrix client. It is for personal and community use, and will support enterprise functionality later this year.

Secure messaging, free calls, group chats up to 250, emoji reactions, disappearing messages, low-cost international calls, rich media and community channels.

Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.

Multi-platform encrypted messenger supporting one-to-one and group chats, file and image sharing, decentralized open-source design, and ad-free nonprofit operation.

Fluxer is an open-source, independent instant messaging and VoIP platform. Built for friends, groups, and communities.

Google Voice gives you one number for all your phones, voicemail organized in an email format, free US long distance calls, low rates on international calls, and many free calling features, including transcripts, call blocking, call screening, conference calling, SMS, and more.

Website monitoring with alerts via calls, texts, and more. Includes on-call scheduling, calendar sync, incidents timeline, and status page sharing.

ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.

Overwolf adds epic overlay apps to your favorite games. Game capture, Twitch streaming, TeamSpeak overlay, in-game browser and many more smart apps that make gaming more awesome!