Software Alternatives & Reviews

Citadel VS Slack

Compare Citadel VS Slack and see what are their differences

Citadel logo Citadel

Is a collaboration suite (messaging and groupware).

Slack logo Slack

A messaging app for teams who see through the Earth!
  • Citadel Landing page
    Landing page //
    2021-10-10
  • Slack Landing page
    Landing page //
    2023-07-18

Citadel videos

Citadel: Forged with Fire Review (Rogue Gaming)

More videos:

  • Review - The Citadel Review - Waifustein 3D
  • Review - CITADEL FORGED WITH FIRE Worth Playing? Full Release RPG Multiplayer Game PS4 Xb1 PC

Slack videos

Review: How & Why We Use Slack At Our Office

More videos:

  • Review - What is Slack?
  • Tutorial - Slack App Tutorial: How & Why We Use SLACK For Our Remote Team

Category Popularity

0-100% (relative to Citadel and Slack)
Email
100 100%
0% 0
Communication
0 0%
100% 100
Data Dashboard
100 100%
0% 0
Project Management
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Citadel and Slack

Citadel Reviews

15 Best iRedMail Alternatives 2021
Citadel has many of the amazing features that people typically flock to iRedMail for such as scheduling/calendaring support, note-taking, file storage, and integrated antispam filtering & server-side mail sorting. It also offers multi-domain support, server-to-server replication, TLS/SSL protocol encryption, and Microsoft Active Directory.
5 Awesome Open Source Groupware Software Suite
Citadel is a free and open source collaboration suite software. It supports protocol such as SMTP, IMAP, Sieve, POP3, GroupDAV, and XMPP. Also includes OpenSSL encryption for additional security. You can run it on your hardware or in the cloud. Feature includes email, calendar/scheduling, address books, bulletin boards (forums), mailing list server, instant messaging, wiki...

Slack Reviews

  1. Best app for getting in touch with my colleagues

    Slack is best platform to be used for professional purposes. It helps me keep my professional and personal life separate.

    🏁 Competitors: Microsoft Teams
    👍 Pros:    Bulk messaging
    👎 Cons:    Sometimes the download is slow
  2. Best tool for messaging to business.

    Slack helps business to get their teams in touch with each other. The interface is very user friendly and easy to use.

    🏁 Competitors: Microsoft Teams
    👍 Pros:    Easy to use|User friendly interface
    👎 Cons:    Costly
  3. great tool for teamwork

    i have been using slack for my work and it is truly amazing. provides great effeciency and helps to manage a large number of team and stay connected throughout. reccomended for businesses with big teams

    👍 Pros:    High quality|User-friendly|Good support
    👎 Cons:    Notifications|Notification and alert

20 Telegram Alternatives to Chat With in 2024
Slack works more like a forum than Teams does – falling somewhere in between a forum and a chat software. It lets you organize discussions into different channels, as well as by thread. You can invite others into a thread by @mentioning them, and it lets you add lots of different types of content. Slack works really well for 1:1 audio meetings, “huddles,” that give you the...
Why we switched to Mattermost
Now, obviously core messaging functionality is critical. Mattermost is great there, but so is Slack. In fact, Slack features like third-party integrations and threaded messaging were missed greatly (thank you, Mattermost, for recently adding threaded messaging). So the relative parity between the solutions from a ‘speeds and feeds’ perspective was table stakes, but we...
Source: netfoundry.io
Microsoft Teams Vs Clariti: Which one should you choose?
The main reason behind the sudden rise of Teams is it is being offered at no added cost to Office 365 users. This strategy paid for Teams as it was able to increase its market share and overtake its potential rival Slack in no time. Though Microsoft is not earning any revenue (they may actually be losing money in selling Teams), they are able to sustain due to their deep...
Source: clariti.app
15 Best Instant Messaging Apps for Business
Clariti is a relatively new instant messaging app that has been gaining in popularity among small businesses and the startup community especially in the technology and media markets. A key reason for its success has been its ability to address issues that other long-standing tools like Slack and Teams have perpetuated with their chat-focused communication paradigm. Clariti...
Source: clariti.app
14 of the Best Slack Alternatives for 2022
Luckily, when it comes to choosing the right communication tool for your team, you have a variety of options. I’ve briefly covered the best apps your team might enjoy, but if you need more in-depth information on team chat tools like Slack, check out Chanty’s Slack alternatives review. It shares Chanty's experience and feedback from testing seven different team chat software...

Social recommendations and mentions

Based on our record, Slack seems to be more popular. It has been mentiond 208 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Citadel mentions (0)

We have not tracked any mentions of Citadel yet. Tracking of Citadel recommendations started around Mar 2021.

Slack mentions (208)

View more

What are some alternatives?

When comparing Citadel and Slack, you can also consider the following products

AWS IoT Device Defender - Manage the security of your fleet. With AWS IoT Device Defender, you can audit and monitor device configurations. Get started today.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Azure Sphere - Help protect your connected IoT devices, such as MCUs and crossover modules, development kits, and guardian devices, with Azure Sphere.

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Symantec Critical System Protection - Symantec Critical System Protection is a flexible and compact behavioral security engine built with application whitelisting infused with anti-exploits for managed or standalone IoT devices.

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.