
Best of Team Apps

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. Teams of all sizes rely on Zulip - Fortune 500 companies, open-source projects, startups, and many others. Zulip is 100% open-source enterprise-grade software, self-hosted or in the cloud.
Zulip can transform how your organization communicates:
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Leaders can prioritize their time and batch-reply to messages, and thus effectively participate in the chat community.
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More discussions can be moved from meetings and email to chat.
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Individual contributors can do focused work instead of paging through GIFs making sure they don’t miss anything important.
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Remote workers can participate in an equal way to people present in person.
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Employees don’t need to be glued to their keyboard or phone in order to avoid missing out on important conversations.
-Everyone saves a huge amount of wasted time and attention.
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RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.
RetroShare features:
Chat
Send text and images. Discuss with various people in chat rooms. Express your emotions with the rich smiley set. Use distant chat to securely chat with friends-of-friends.
Voice and Video
Make free and secure calls with the VoIP plugin. Catch up face to face with a video call.
Mail
Send encrypted messages to other members of the network. Retroshare can store encrypted messages on friends nodes to deliver messages while you're offline.
File sharing
Share files with your friends or with the whole network. Use the search to find files. Retroshare uses swarming similar to BitTorrent, to accelerate the download. This makes it possible to share big files with 1GB or more. Your privacy is protected with anonymous tunnels. Only your direct friends might learn which files you download.
Forums
You can read and write forum posts offline. This is perfect while you're on the go. When you have an Internet connection, Retroshare will automatically sync forums with your friends. Decentralized forums are censorship resistant by design.
Posted
Share your favorite links. See which links others like. Vote and discuss links.
Channels
Publish files in channels. Subscribe to channels and automatically download the latest files. Comment on files and spread them to your friends.
Jami (formerly GNU Ring, SFLphone) positions itself as a potential free Skype replacement
Open Source and cross-platform. Jami gives you a full control over your communications and an unmatched level of privacy.
SIP-compatible softphone and SIP-based instant messenger for Linux, Microsoft Windows, OS X and Android.
Communicate in multiple ways: • A telephone: a simple tool to connect, communicate and share. • A teleconferencing tool: easily join calls to create conferences with multiple participants. • A media sharing tool: Jami supports a variety of video input options, including mutliple cameras and image and video files, and the selection of audio inputs and outputs; all this is supported by multiple high quality audio and video codecs. • A messenger: send text messeges during calls or out of calls (as long as your peer is connected). • A building block for your IoT project: re-use the universal communications technology of Jami with its portable library on your system of choice.
Developed and maintained by the Canadian company Savoir-faire Linux, and with the help of a global community of users and contributors.
Watch videos of Jami in actions at https://www.youtube.com/channel/UCIe47cCt_ovwKb2Nfr4nBlw/videos
Jitsi Desktop (previously SIP Communicator) is a legacy audio/video and chat communicator with full encryption, precedessor of Jitsi Meet .
It supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!, GTalk/Hangouts extensions, as well as OTR, ZRTP, etc.
Element is a Matrix-based end-to-end encrypted (E2EE) secure collaboration and messaging app.
It provides instant messaging, voice and video calls, screen sharing and file sharing; for 1:1s to huge chat rooms. It’s available to use across Web, Android, iOS, macOS, Windows & Linux.
Its decentralised design delivers digital sovereignty, enabling deployment on-premise or through any cloud provider.
Element Matrix Services (EMS) is the most popular SaaS for corporate use of Element. EMS provides fast performance and enterprise-grade add-ons.
Being Matrix-based, Element provides interoperability between traditional siloed apps. It can bridge into proprietary ‘walled garden’ systems such as Slack, Microsoft Teams, WhatsApp, Signal, Telegram and Discord to enable easy connections between different organisations.
End-to-end encryption is provided by default to keep users’ conversations and files safe. Cross-signed device verification uses QR codes or emoji comparisons to guard against imposters and eavesdropping.
Element is built on the Matrix.org open standard which provides bridges to other systems such as Slack, IRC and a lot more soon.
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.
Tox is built with the idea that you can keep up with friends and family without having your privacy violated. While other big-name services require you to pay to unlock features, Tox is free in both price, and in liberty. That is, you’re free to do whatever you wish with Tox.
Some Tox binary official frontends:
- Windows: uTox updater, µTox, qTox, Toxy, Konv
- OS X: qTox, Poison, uTox, Toxic, Konv
- Linux: uTox, Toxic, qTox, Ricin, Konv
- Android: Antox, TrRiFA, Konv
- iOS: Antidote, Konv
- FreeBSD: uTox, qTox, Toxic, Konv
µTox is the lightweight client with minimal dependencies; it not only looks pretty, it runs fast! µTox is available for Windows, OS X, and Linux (Android support is experimental), with full support for chat, file transfers, audio/video calling, and desktop sharing (both as video and inline screenshots). It also supports text group chats with audio groups pending the next Toxcore update.
Demonsaw is a new type of information sharing application that allows you to share your files securely. It's the next leap in the evolution of a free Internet, and the debut of social cryptography. Demonsaw is designed to protect your anonymity and hide what you're sharing. Your IP address is never revealed to the world. Share whatever you want, with whomever you want, without fear.
Every information sharing application over the past 45+ years has had 3 common elements: the ability to upload/download files, the ability to control program flow, and the ability to transfer data. Demonsaw is different from other information sharing applications because it breaks up these different types of abilities into separate network components that act autonomously. By doing this demonsaw creates an extra layer of abstraction that completely secures your information sharing.
Demonsaw is a type of decentralized private cloud network. It takes the best features from centralized applications, like Dropbox, and decentralized applications, like BitTorrent, and merges them into a seamless new type of hybrid information sharing application. By levering your home Internet access, you become your own secure information sharing network.
Anonymous peer-to-peer instant messaging
Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet.
Private. None of your data is ever stored anywhere else other than on your computers. There is no central server that might be compromised, legally or illegally. Encrypted. All communication is secured using TLS. The encryption used includes perfect forward secrecy to prevent any eavesdropper from ever gaining access to your data. Authenticated. Every node is identified by a strong cryptographic certificate. Only nodes you have explicitly allowed can connect to your cluster.
Wickr is a free end-to-end encrypted text, video, picture and voice messenger with full sender control.
Shredder – Irreversibly remove all deleted messages, images, and video content from your device
Configurable Timer – Set the expiration time on all your messaging content
No Metadata – Wickr removes all records, geotags and identifying information from your messages and media
No Ads – Ever
Secure – Send and receive secure messages, documents, pictures, videos and audio files
Connect Safely – Your address book will always remain private and will never be stored on our servers
Anonymous – Your Wickr ID is anonymous to us and anyone outside your Wickr network Your conversations can not be tracked, intercepted or monitored.
Groups – Communicate with groups of up to 10 contacts
Fun – Add stickers, graffiti and photo filters
OpenProject is an open source software for project management with a wide set of features and plugins and an active international community. It supports project timelines / Gantt charts, issue tracking, wiki, document management, time and cost reporting, code management, Scrum and much more.
Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database.
It integrates with a number of different SCM:s including Subversion and Git. It has multi language support and can be extended with the help of plugins.
Redmine is licensed under GNU GPL.
Taiga is a full-featured project management platform for startups and agile developers & designers who want a simple, beautiful tool that makes work truly enjoyable.
Taiga is available in tree versions :
• Open Source • SaaS • Managed
Cost :
• Open Source is fully free. But requires skills to self-managed it. • SaaS is free for up to 15 users and 5 private projects. Or Premium $5 to $7/mo per user, unlimited projects. • Managed cost is communicated by their sales team
Features :
• Planning. Choose between Kanban or Scrum. • Tickets/Issues • Easy to use • Intuitive user interface • Team interaction • Dashboard/Reporting • Timetracking. Using either a custom field or integration with Toggl. • Self hosted, SaaS, or Managed • Multilingual. More than 20 languages. • Customization. Fields, tags, stages, colors, close definition • Import from GitHub, Jira, Trello • Integration with 3rd party software. Such as, but not limited to, Bitbucket, GitLab, GitHub, Gogs, Slack, Webhooks.
Contribute :
• Backend at https://github.com/kaleidos-ventures/taiga-back • Frontend at https://github.com/taigaio/taiga-front
License :
• Backend is GPL-3.0 (GNU Affero General Public License v3.0) at https://github.com/taigaio/taiga-back/blob/master/LICENSE • Frontend is GPL-3.0 (GNU Affero General Public License v3.0) at https://github.com/taigaio/taiga-front/blob/master/LICENSE
LimeSurvey (formerly PHPSurveyor) is an Open Source PHP web application to develop, publish and collect responses to online & offline surveys. Anonymous and Not-Anonymous survey, open and closed group of participant surveys, optional public registration for surveys. More than 50 different languages in frontend and backend. LimeService is a survey service-platform to prepare, run and evaluate on-line surveys. Besides basic free usage you are always getting the full feature set with no monthly fees or subscription plans: https://www.limesurvey.org/
TellForm is a free, opensource form builder similar to Google Forms or TypeForm. It was created and is maintained by David Baldwynn, an Electrical Engineering student studying at UBC.
TellForm grew out of one of David's contracting projects where he was tasked to create a self-hostable, airgapped kiosk for a client in the medicial industry.
Finding no forms to his liking that were as easy to use as TellForm David set out to create a alternative to TellForm. After working on it for a couple of months in the Summer of 2015, he decided to opensource it.
TellForm ended up getting posted on HackerNews, which lead to it being hunted on Product Hunt, further legitimizing TellForm and increasing awareness about the project.
Unlike the most others solutions, SurveyJS Project consists of three fully independent parts: run-time SurveyJS library, SurveyJS editor and SurveyJS service for storing and analyzing results. You may stick with the complete solution or use only a library. You may use SurveyJS service to store your results there or store them in your own storage. You may freely use SurveyJS Editor or integrate the Editor into your own web site.
SurveyJS library is a free and open source solution under MIT license. However, professional full-time software developers support it.
TaskJunction is a free online project management tool for agile software teams. Full support for Scrum through taskboard, testboard, and sprints.
With Mobizen you can control your Android device using a web browser, both via USB both via WiFi.
The program, made to record mobile screen, can also take screenshots or even transfer files.
Features:
- Remotely connecting to the device using USB/Wifi/mobile network, without rooting
- Screen mirroring with high frame rate
- Control Android device remotely (touches and keyboard)
- Screen recording without root and capturing screenshots
- Full screen mode (useful when mirroring tablets)
- Automatic detection of portrait and landscape mode
Provide technical remote support to mobile devices from any Windows, Mac, or Linux computer! Whether it’s a single tablet or a deployed fleet of smartphones, TeamViewer mobile device support lets you connect to Android and iOS (iPad/iPhone/iPod Touch) mobile devices through the TeamViewer QuickSupport app. Support mobile devices remotely, all from the convenience of your workstation.
Features: • Chat • View device information • Remote Control • File transfer • App list (Uninstall apps) • Process list (Stop processes) • Push and pull Wi-Fi settings • View system diagnostic information • Real-time screenshot of the device • Store confidential information into the device clipboard • Secured connection with 256 Bit AES Session Encoding
Lark is the next-gen workspace for teams. The future of work is here, and it's free. Lark is the ultimate all-in-one, mobile-first collaboration suite for teams of all sizes, built to maximize efficiency and you and your team to do your best work. The suite primarily consists of Lark Messenger, Lark Docs, Lark Calendar, Lark Drive, Lark Video Conferencing, as well as Lark Workplace which integrates third-party applications. All functionalities are deeply integrated into a single app, which is available on Mac, PC, iOS, and Android.