Group Chat Apps

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Briar
Free • Open Source
Instant Messenger
Encrypted Chat App
Group Chat App
Linux
Android
Flathub
F-Droid
50 alternatives to Briar
An open-source decentralized and encrypted messaging app even without internet connection via Wi-Fi and Bluetooth. Messages are stored securely on your device, not in the cloud. Connect directly with nearby contacts - no Internet access is required.
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Briar Features
1. DecentralizedBriar is based on a decentralized infrastructure with no single entity controlling it.
2. End-to-End EncryptionBriar has E2E Encryption, for entire or parts of the app.
3. Works OfflineBriar can be used without the need to connect to the internet.
4. No registration requiredYou can use most of the features in Briar without registration.
5. Self Destructing MessagesBriar supports the use of private messages that will be auto deleted according to a specified time or action.
6. Ad-freeBriar doesn't contain any form of external advertising.
7. LightweightBriar consumes less device resources compared to similar apps.
8. Dark ModeBriar supports dark mode for comfortable usage in low light conditions.
9. Privacy focusedBriar is considered a privacy friendly alternative.
Decentralized
Bluetooth Support
No Internet required
End-to-End Encryption
Mesh network
Support for TOR
Works Offline
No registration required
Peer-To-Peer
Self Destructing Messages
Top 3 alternatives
Zulip
Free Personal • Open Source
Group Chat App
Instant Messenger
Encrypted Chat App
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
BSD
iPad
Self-Hosted
219 alternatives to Zulip
Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.
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Zulip Features
1. Support for MarkDownZulip supports MarkDown for document formatting.
2. Syntax HighlightingZulip supports syntax highlighting for various programming and markup languages.
Threaded Conversations
Support for Hotkeys
Community-based
Support for MarkDown
Integrated File Sharing
Chat Bot
Code Syntax Highlighting
Syntax Highlighting
GitHub integration
Secure Chat
Top 3 alternatives
Rocket.Chat
Freemium • Open Source
Group Chat App
Video Calling App
Team Collaboration Tool
Mac
Windows
Linux
Android
iPhone
iPad
Self-Hosted
Cloudron
129 alternatives to Rocket.Chat
Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.
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Rocket.Chat Features
1. Ad-freeRocket.Chat doesn't contain any form of external advertising.
2. Extensible by Plugins/ExtensionsRocket.Chat can be extended with add-ons, plugins and extensions.
3. Screen SharingYou can use Rocket.Chat to share your screen with your colleages or friends.
Omnichannel messaging
Ad-free
Channels
Telegram integration
Self-Serve Capability
Whatsapp integration
Video Conferencing
Bots
Encrypted VoIP calls
Integrated File Sharing
Top 3 alternatives
BigBlueButton
Free • Open Source
Web Conferencing Tool
Group Chat App
Team Collaboration Tool
Windows
Linux
Online
Android
Chrome OS
Self-Hosted
Google Chrome
Software as a Service (SaaS)
Chromium
Firefox
101 alternatives to BigBlueButton
BigBlueButton enables universities and colleges to deliver a high-quality learning experience to remote students.
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BigBlueButton Features
1. Screen SharingYou can use BigBlueButton to share your screen with your colleages or friends.
2. Desktop SharingBigBlueButton enables you to share your screen with other people in the same office or working remotely.
Screen Sharing
Video Conferencing
Interactive Whiteboard
Share notes
Built-in Commenting System
Integrated File Sharing
Teacher screen broadcasting
WordPress Integration
Comments and metadata saving
Desktop Sharing
Top 3 alternatives
Revolt
Free • Open Source
Group Chat App
Video Calling App
Team Collaboration Tool
Windows
Linux
Online
Android
Flathub
19 alternatives to Revolt
Revolt is a brand new chat platform designed around you.
Suggest and vote on features
Revolt Features
1. Privacy focusedRevolt is considered a privacy friendly alternative.
2. Ad-freeRevolt doesn't contain any form of external advertising.
3. VoiP CallsRevolt allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
4. No TrackingRevolt will not track you or use your personal data.
5. End-to-End EncryptionRevolt has E2E Encryption, for entire or parts of the app.
6. Cloud SyncSync your data (notes, documents, bookmarks, etc.) across your different devices and to the cloud.
7. Screen SharingYou can use Revolt to share your screen with your colleages or friends.
Privacy focused
Ad-free
Text chat
VoiP Calls
No Tracking
Bots
Multiple Servers
End-to-End Encryption
Reactions
Custom roles
Top 3 alternatives
Viber
Freemium • Proprietary
Group Chat App
Instant Messenger
Video Calling App
Mac
Windows
Linux
Android
iPhone
Windows S
Android Tablet
HUAWEI AppGallery
Windows Phone
iPad
Blackberry 10
Apple Watch
166 alternatives to Viber
With Viber, everyone in the world can connect. Freely. More than 460 million Viber users text, make HD-quality phone and video calls, and send photo and video messages worldwide over WiFi or 3G - for free.
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Viber Features
1. Desktop SharingViber enables you to share your screen with other people in the same office or working remotely.
2. VoiP CallsViber allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
Desktop Sharing
Phone calls
Animated stickers
VoiP Calls
Call Transfer
Secret chats
Multiple languages
Hidden chat
Voice Chat
Encrypted VoIP calls
Top 3 alternatives
Threema
Paid • Open Source
Encrypted Chat App
Group Chat App
Online
Android
iPhone
Android Tablet
iPad
HUAWEI AppGallery
Mac
Windows
Linux
98 alternatives to Threema
Threema is a new mobile messaging app that puts security first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages.
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Threema Features
1. End-to-End EncryptionThreema has E2E Encryption, for entire or parts of the app.
2. Privacy focusedThreema is considered a privacy friendly alternative.
3. No TrackingThreema will not track you or use your personal data.
4. Ad-freeThreema doesn't contain any form of external advertising.
5. Encrypted BackupThreema uses encryption algorithms to keep your files safe as well as prevent unauthorized access.
End-to-End Encryption
Privacy focused
Integrated File Sharing
Security focused
Confirm messages
Encrypted calls
Voting
Integrated App lock
Sync Contacts
Secure Chat
Top 3 alternatives
Basecamp
Freemium • Proprietary
Project Management Tool
Task Management Tool
Team Collaboration Tool
Mac
Windows
Online
Android
iPhone
Android Tablet
iPad
Software as a Service (SaaS)
514 alternatives to Basecamp
Basecamp is a web-based project collaboration tool that allows groups of people to share files, meet deadlines, assign tasks, and centralize feedback.
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Basecamp Features
1. Support for @mentionsBasecamp supports the use of mentions through @ to a particular user, who will be notified personally.
2. Real time collaborationMultiple users can work together in Basecamp simultaneously.
3. Sync with Google CalendarBasecamp can be synchronized with Google Calendar
4. Task Time TrackingKeep a record of time spent on a task with Basecamp.
5. Gantt-chartsBasecamp allows you to visualize your project plan through a timeline with schedule bars and keep track of the work done.
Visual Organization
Support for @mentions
Social feed
iCal integration
Content Templates
Real time collaboration
White-labeled
Sync with Google Calendar
Unlimited users
Message board
Top 3 alternatives
Metastream
Free • Open Source
Watch Videos Together Tool
Group Chat App
Video Streaming App
Mac
Windows
Linux
Online
Chrome OS
Google Chrome
Firefox
43 alternatives to Metastream
Metastream allows you to watch internet videos with friends. It synchronizes media on websites so you can watch together.
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Metastream Features
1. No registration requiredYou can use most of the features in Metastream without registration.
2. Watch Videos TogetherWatch video streams in sync together with your friends with Metastream.
Private Groups
Synchronized browsing
No registration required
WebRTC
Integrated Web Browser
Integrated Chat
Multiple languages
TV Streaming
Top 3 alternatives
Delta Chat
Free • Open Source
Encrypted Chat App
Instant Messenger
Group Chat App
Mac
Windows
Linux
Android
iPhone
Android Tablet
FLATHUB
F-Droid
55 alternatives to Delta Chat
Delta Chat looks and feels like other popular messenger apps, but does not involve centralized control, tracking or selling you, friends, colleagues or family out to large organizations. "Privacy by Design" has never been more fun.
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Delta Chat Features
1. DecentralizedDelta Chat is based on a decentralized infrastructure with no single entity controlling it.
Decentralized
Encrypted Email
IMAP Support
Multiple languages
Electron based
Top 3 alternatives
Conversations
Free • Open Source
Instant Messenger
Encrypted Chat App
Group Chat App
Android
Android Tablet
F-Droid
142 alternatives to Conversations
Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].
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Conversations Features
1. DecentralizedConversations is based on a decentralized infrastructure with no single entity controlling it.
2. End-to-End EncryptionConversations has E2E Encryption, for entire or parts of the app.
3. OpenPGPConversations supports OpenPGP, a standard of PGP encryption that is open-source for public use.
4. GPG EncryptionConversations supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
5. Self Destructing MessagesConversations supports the use of private messages that will be auto deleted according to a specified time or action.
6. PGP EncryptionConversations supports PGP, an encryption system used for sending encrypted emails and files.
Decentralized
End-to-End Encryption
Image Sharing
OpenPGP
Encrypted Connection
OTR
Supports XMPP
GPG Encryption
Federated
OMEMO
Top 3 alternatives
Microsoft Teams
Freemium • Proprietary
Group Chat App
Video Calling App
Team Collaboration Tool
Mac
Windows
Linux
Android
iPhone
Windows S
Android Tablet
iPad
Microsoft Office 365
231 alternatives to Microsoft Teams
Microsoft Teams is the chat-based workspace in Office 365 that integrates your team's people, content, and tools to be increase engagement and efficacy.
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Microsoft Teams Features
1. Calendar ViewMicrosoft Teams has a built-in calendar view to have a clear overview of your content over time.
2. Real time collaborationMultiple users can work together in Microsoft Teams simultaneously.
3. RemindersMicrosoft Teams allows you to set reminders for tasks, events or actions, based on parameters of time, place or condition.
4. Live Captions TranslationMicrosoft Teams can add captions to a video call, audio messages or multimedia file and translate them in real time.
5. VoiP CallsMicrosoft Teams allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
Microsoft Office integration
Planner
Sharepoint integration
Calendar View
Trello integration
Team Messaging
Real time collaboration
Azure DevOps integration
Reminders
Shared Calendar
Top 3 alternatives
Linphone
Free • Open Source
Instant Messenger
Encrypted Chat App
Group Chat App
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Xfce
78 alternatives to Linphone
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.
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Linphone Features
1. End-to-End EncryptionLinphone has E2E Encryption, for entire or parts of the app.
SIP client
SIP
Softphone
Voice Chat
Live Push Notifications
Encrypted VoIP calls
Audio Conferencing
End-to-End Encryption
Top 3 alternatives
TeamSpeak
Freemium • Proprietary
Group Chat App
Encrypted Chat App
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Cloudron
48 alternatives to TeamSpeak
TeamSpeak is a proprietary Voice over IP software that allows users to speak on a chat channel with other users, much like a telephone conference call. A TeamSpeak user will often wear a headset with an integrated microphone.
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TeamSpeak Features
1. VoiP CallsTeamSpeak allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
2. DecentralizedTeamSpeak is based on a decentralized infrastructure with no single entity controlling it.
VoiP Calls
Voice Chat
Push to talk
Hostable
In-Game Overlay
Game Chat
Decentralized
Top 3 alternatives
Facebook Messenger
Free • Proprietary
Instant Messenger
Video Calling App
Group Chat App
Windows
Online
Android
iPhone
Blackberry
Windows S
Android Tablet
Windows Phone
iPad
Apple Watch
Android Wear
192 alternatives to Facebook Messenger
Facebook Messenger is a faster way to message. Reach friends right on their phones, get and send messages fast, message everyone at once and more.
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Facebook Messenger Features
1. VoiP CallsFacebook Messenger allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
2. Face FilterFacebook Messenger uses augmented reality to overlay visual effects/elements on a live video or image.
3. Expiring StoriesYou can create, view, interact and share temporary stories in Facebook Messenger.
Stickers
VoiP Calls
Messages
Text messaging
Expiring Stories
In-app Money Transfer
Private messaging
Top 3 alternatives

Briar Features

Top 3 alternatives

Zulip Features

Top 3 alternatives

Rocket.Chat Features

Top 3 alternatives

BigBlueButton Features

Top 3 alternatives

Revolt Features

Top 3 alternatives

Viber Features

Top 3 alternatives

Threema Features

Top 3 alternatives

Basecamp Features

Top 3 alternatives

Metastream Features

Top 3 alternatives

Delta Chat Features

Top 3 alternatives

Conversations Features

Top 3 alternatives

Microsoft Teams Features

Top 3 alternatives

Linphone Features

Top 3 alternatives

TeamSpeak Features

Top 3 alternatives

Facebook Messenger Features

Top 3 alternatives