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Semaphor Alternatives

Semaphor Alternatives

Semaphor

The SpiderOak team needed a secure solution for group messaging and file sharing without the risks of email or off-the-shelf collaboration tools. We made Semaphor, group messaging with private blockchain encryption.
Now your company or team can protect your most important communication with the same No Knowledge application we use at SpiderOak.

Semaphor gives you secure group messaging for your most sensitive data. End-to-end encryption with private blockchain technology protects your private company communication and your everyday work.

Our No Knowledge philosophy is the cornerstone of everything SpiderOak does. Your data in Semaphor is protected by private blockchain technology and end-to-end encryption. This means that all data is encrypted before it leaves your device and no data is visible or accessible to any SpiderOak employees. Only the members of your team have access to your data.

Semaphor 2.0 has been completely redesigned for usability and simplicity. Create teams and channels, send messages and files, all within an easy to use interface. Semaphor's mobile first design gives you full functionality no matter which of your devices you access it from.

Download and install Semaphor on all of your computers and mobile devices. Supported platforms include Windows, macOS, Linux (beta), iOS, and Android.

With something as important as your security and data at stake, you need the ability to verify how our products work.

Semaphor is free for teams of 5 or less. All teams include unlimited message and file retention, unlimited file sharing, a single file size limit of 2 GB, and unlimited channels and messages.

Best Semaphor Alternatives for Iphone

Are you still using Semaphor? Let's compare it to the best other options below. Maybe one of these Semaphor alternatives will work on your device, too.

Slack

Slack

FreemiumMacWindowsLinuxAndroidiPhoneChrome OSAndroid TabletiPadElectron / Atom ShellSoftware as a Service (SaaS)

Real-time messaging, archiving and search for modern teams to stay focused and productive.

Features:

  • Group chat
  • Group collaboration
  • Multi Channel
  • Team Collaboration
  • Extensible by Plugins/Extensions
  • Channels
  • Electron based
  • Support for @mentions
  • App integration
  • Channel manager
  • Direct file uploading
  • HIPAA compliant
  • IFTTT integration
  • Integrated File Sharing
  • Live Push Notifications
  • Multiple channels
  • Multiple teams
  • Onboarding
  • Out Of The Box
  • Reactions
  • Real time collaboration
  • Team work
  • Video calling
  • Video chat
  • Voice Call
Discord

Discord

FreemiumMacWindowsLinuxWebAndroidiPhoneChrome OSBSDiPadElectron / Atom ShellFreeBSD

All-in-one voice, video and text chat for gamers that’s free, secure, and works on both your desktop and phone.

Features:

  • Voice Call
  • Ad-free
  • Chat Bot
  • Group chat
  • Share your screen
  • Text chat
  • Video calling
  • Voice chat
  • Push to talk
  • Video chat
  • Multi Channel
  • Public groups chat
  • Bots
  • Custom roles
  • Direct Messaging
  • Encrypted chat
  • Group Voice Chat
  • Low Latency
  • Multiple Servers
  • Reactions
  • Share content
  • Social & Communications
  • Text to Speech
  • Voice channels
  • Camera capturing
  • Channel manager
  • Community based
  • Custom Smileys
  • Dedicated Server Hosting
  • Development API
  • Electron based
  • Gaming-focused
  • Gui
  • Group Messaging
  • In-app server browser
  • In-Game Overlay
  • Integrated Chat
  • Integrated File Sharing
  • Interface Overlay
  • Lightweight
  • Low bandwidth usage
  • Low memory usage
  • Multi-platform support
  • Night mode/Dark Theme
  • Noise Reduction
  • Permission system
  • Persistent Chat
  • Photo Sharing
  • Positional audio
  • Responsive design
  • Role-based security access
  • Share your screen
  • Single Sign-On
  • Team Collaboration
  • Voice chat
  • Webcam overlays
  • Youtube Gaming Integration
Riot.im

Riot.im

FreeOpen SourceMacWindowsLinuxWebAndroidiPhoneAndroid TabletiPadSelf-Hosted

A free instant messaging and collaboration software based on the Matrix protocol.

Features:

  • End-to-End Encryption
  • Decentralized
  • Group chat
  • Security & Privacy
  • Team Collaboration
  • Federated
  • Privacy-friendly
  • Video chat
  • Video calling
  • Voice Call
  • Add-ons
  • Clean design
  • Custom widgets
  • Direct Messaging
  • Encrypted chat
  • Group collaboration
  • Matrix.org protocol
  • Message redaction
  • Mobile friendly
  • Moderation tools
  • Per-room avatars
  • Privacy focused
  • Read receipts
  • Text chat
  • Typing notifications
  • User Management
  • User mentions
  • Video/Audio Calling
  • Voice chat
  • Web Integaration
  • Chat Bot
  • Community based
  • DRM Free
  • GitHub integration
  • Integrated File Sharing
  • Live Chat
  • MarkDown support
  • Real time collaboration
  • File Sending
  • Server Moderation
  • Server side history
  • Slack integration
  • Social network
  • Video calling
  • Voice chat
  • Web-Based
Wire

Wire

FreemiumOpen SourceMacWindowsLinuxWebAndroidiPhoneAndroid TabletiPadSelf-HostedSoftware as a Service (SaaS)

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

Features:

  • End-to-End Encryption
  • Security focused
  • Encrypted chat
  • Video calling
  • Voice Call
  • Encrypted calls
  • Encryption
  • Group chat
  • Share your screen
  • Security & Privacy
  • Anonymity
  • Integrated File Sharing
  • Multiple Account support
  • Photo Sharing
  • Privacy focused
  • Privacy Protected
  • Private Chat
  • Secure Chat
  • Secure File Sharing
  • File Sending
  • Video calling
  • Video chat
  • Voice chat
  • Voice messages
  • WebRTC
Mattermost

Mattermost

FreemiumOpen SourceMacWindowsLinuxAndroidiPhoneAndroid TabletiPadSelf-HostedJavaScriptGo (Programming Language)Cloudron

Mattermost is an open source, self-hosted Slack alternative. As an alternative to proprietary SaaS messaging, Mattermost brings...

Features:

  • Group chat
  • Team Collaboration
  • On-premises software
  • Self-hosted in intranet or private cloud
  • Chat Bot
  • Data API
  • Integrated File Sharing
  • MarkDown support
  • Multi Channel
  • Plugin API
  • Plugins
  • File Sending
  • Slack integration
  • Supports XMPP
  • Webhook support
Microsoft Teams

Microsoft Teams

FreemiumMacWindowsLinuxAndroidiPhoneWindows SAndroid TabletiPadMicrosoft Office 365

Team collaboration software by Microsoft that features chat and voice & video comms.

Features:

  • Planner
  • Team Collaboration
  • Microsoft Office integration
  • Office 365 integration
  • Shared calendars
  • Sharepoint integration
  • Spreadsheets
  • Trello integration
  • Group chat
  • Microsoft Office integration
  • Noise Reduction
  • Real time collaboration
  • Team messaging
  • Team work
  • Video Conferencing
  • Voice Call
Dialog Messenger

Dialog Messenger

Free PersonalMacWindowsLinuxWebAndroidiPhoneSelf-HostedSoftware as a Service (SaaS)

Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for...

Features:

  • Encrypted chat
  • Messaging
  • Messaging-sdk
  • Reactions
  • Real time collaboration
  • Security & Privacy
  • Team work
  • Text chat
  • Video chat
  • Voice chat

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