5
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Alternative to Slack
Mattermost is the main alternative to Slack that covers most of your requirements. I have not looked at it in a while, but you will also find a few useful others here in previous questions:
Team chat ...
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5
votes
Accepted
free chat app with end-to-end encryption operating on Android and iPhone
Signal is another example of such app, which is commonly used.
encrypts communication end-to-end
it's free
has Android and iPhone support
group chats are supported
etc.
No web app (which Telegram ...
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4
votes
Accepted
VNC server for Android
I have been using something called Alpha VNC Lite. Alpha VNC lite doesn't seem to work on the home screen but most other apps seem to work fine. The device doesn't need to be rooted but you do not ...
- 535
4
votes
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Are there any instant messaging apps that support Markdown and LaTex?
I would suggest you telegram https://telegram.org/ with a LaTeX bot. You may start with an InLaTeX bot https://telegram.me/inlatexbot
Once you added the bot, type
@inlatexbot $$x^2$$
to the person ...
- 156
3
votes
Skype alternative for Linux with counterpart for Android
Another reason to switch away from Skype is that they are owned by Microsoft and have been shown by the Snowden leaks simply to give data from Skype conversations to the NSA, including recorded calls.
...
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3
votes
Accepted
simple lightweight reliable method to send notifications to ubuntu over internet
My suggestion would be to use a chat app such as Empathy or even Discord. Both will send GNOME pop-up notifications and are trivial to install.
Otherwise you could always make an email for just this ...
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3
votes
Alternative to Whatsapp that takes less phone storage space
WhatsApp can actually be configured to use much less phone space:
Go to the settings
Touch "Data and storage usage"
Find the "Media auto-download" section
In each of the items in that section, ...
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2
votes
1:1 Video Chat that doesn't require logins
Jitsi Meet is open source, does not require any account and you can self-host it if you want. It works in the browser, so no installation needed.
Jitsi Meet - Secure, Simple and Scalable Video ...
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2
votes
Presence on the network
I programmed a tool for you.
It's called PC Presence and does exactly what you want. Unfortunately, I didn't have enough time to implement notifications yet, but on/off view already works.
From the ...
- 203
2
votes
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Looking for chat source for web application (web socket/ajax)
I think ppmessage suite with your requirement.
With PPMessage, you can chat with visitor or customer via Web or mobile App as open source Intercom alternative.
And also, it has Web SDK. And this ...
- 100
2
votes
LAN-only IP-to-IP video chat
I would recommend trying a WebRTC based solution. One of them is apprtc.
You'll need internet connection to load the web page once, But after that you can talk to who ever you want on your local ...
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2
votes
Public chat for virtual coworking
Slack may be the most suitable, if it doesn't have the functionality that you need out the box, then they do have plenty of add-ons that may be worth looking at.
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2
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Libre messenger program with loads of emoticons
I would suggest using an Emoji App + Riot, or any other FOSS chat app.
PS: If you are so concerned about privacy I would switch to Linux. It is just as easy to use as windows, and it has a better ...
2
votes
Open-source Alternatives to MS Teams for Video Conferencing
BigBlueButton would meet your requirements:
open-source: Yes.
Does not require to own a server or domain (by me): While you can self-host it, there are providers offering it for you. Though BBB ...
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2
votes
Alternative to Slack
Discord
Features
Discord is free and the most popular team communication app for gamers. The platform provides users with familiar Slack-like UI, Skype-like video, and voice chats. Discord is amazing ...
- 326
2
votes
Website chat platform that allows for third parties to communicate
Perhaps give Chatwoot a try? It's open-source and has an SMS intergration: https://www.chatwoot.com/features/sms-integration
2
votes
free chat app with end-to-end encryption operating on Android and iPhone
Whatsapp will do all of this and more. And it is free.
Screenshot of website
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2
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What chat app does not block our offline access to our messages in case we have any account problem? my messages are my property, not theirs!
You can use Delta Chat, based on email, for which you can use any email server. By virtue of being based on email, you hold the messages that you send and receive, and can easily synchronize them to ...
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1
vote
Windows application better than Skype
Telegram might be an option.
Pros:
Native apps for Windows, Linux, and macOS, as well as a web-interface, and mobile apps for Android, iOS, and Windows Phone, so you're fine even if your platform ...
- 1,116
1
vote
Customizable website chat widget
Tawk.to has an iOS app and seems customizable enough for me to try out.
Even though I knew about Tawk.to back when I asked this question, I had never been able to find this documentation about how to ...
- 455
1
vote
Cross platform chat program with local log?
Pidgin is a chat program which lets you log in to accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on MSN, talking to a friend on Google Talk, and ...
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1
vote
Accepted
Cost-free alternative to slack where channels can be set as "open"
Gitter has all of the features, even private rooms. I've been using it now for a while and I'm happy with it
UPDATE: Below is a list of why i prefer gitter over slack
I can take part in several chats ...
- 341
1
vote
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Software with phone-app and web interfaces to create impromptu groups and discuss
How about email itself? If you don't include a teacher in the recipients list, they won't get a message.
multiple group creation — Just create a group of contacts in your address book.
Allow people ...
- 1,207
1
vote
Instant messenger app for Android and iPhone
Try Threema (a seriously secure messaging app, their claim)
Your must-haves:
Allows you to set up a PIN or system lock for app display
You can clear chat messages
Customizable notifications
Android ...
- 525
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vote
Each client should have their own private "room" where they can video/text with their support person from my team
Hangouts Chat
Not to be confused with Google Hangouts, the confusingly-named Hangouts Chat is Google's business offering as of 2018, and is available to G Suite subscribers.
Create dedicated chat ...
- 191
1
vote
Is there a private messaging app without identity?
Seems like Wickr can satisfy your criteria. I am not security expert, but here is link to description of how they handle their data security for you to evaluate. They have mobile apps that do not ...
1
vote
Accepted
Looking for a messaging service with api that lets me fan out messages to multiple users at once
Telegram has a Bot API that does exactly what you seek.
They have samples for all the possible programming languages, so it's totally not a problem.
Going through your requirements:
offers an api to ...
- 443
1
vote
Looking for a messaging service with api that lets me fan out messages to multiple users at once
Matrix works pretty well for this.
Can be run decentralised with other matrix "homeservers". Its a protocol - and synapse is the "best" supported server at the moment.
is basically based off bog ...
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LAN chat software between Linux and Windows
You could try pidgin with the bonjour protocol, it's not very modern but it should work.
The following article shows how it works:
http://www.ubuntubuzz.com/2011/11/use-pidgin-for-chatting-and.html
(...
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