Flock vs Zulip

Slack

Basecamp

Google Meet

Microsoft Teams

Mattermost

Rocket.Chat

Compare Flock and Zulip based on features, pricing, verified reviews, integrations & more on GetApp. Find out which software is best for your business in 2026.

Slack is a single workspace that connects users with the people and tools they work with everyday, no matter where they are or what they do

Microsoft Teams is a chat-based workspace in Microsoft 365 which lets users collaborate on documents, make voice & video conference calls, view chat logs, and more. Teams has replaced Skype for Business as Microsoft's online meeting solution.

Google Meet is a video conferencing platform for teams to communicate via messaging, voice, and video. Features include high-definition video and audio conferencing for up to 100 participants, multi-device chat sync, stored chat history, real-time captions, meeting recording function, and more.

Flock is a collaborative messaging app for teams which enables users to discuss projects and find and share information and ideas effectively and efficiently

Access Controls/Permissions

Activity/News Feed

Alerts/Notifications

Audio Calls

Blogs

Brainstorming

Calendar Management

Chat/Messaging

Collaboration Tools

Communication Management

Conferencing

Contact Management

Deadline Management

Discussions/Forums

Document Management

Drag & Drop

Email Reminders

Employee Database

Event Management

File Sharing

File Transfer

Group Management

Group Messaging

Ideation

Live Chat

Meeting Management

Member Directory

Messaging

Mobile Access

Multi-Channel Communication

Multi-User Collaboration

Notes Management

Productivity Analysis

Project Management

Project Planning/Scheduling

Real Time Synchronization

Real-Time Chat

Reminders

Remote Access/Control

Reporting/Analytics

Screen Sharing

Search/Filter

Social Media Integration

Sub-Task Management

Survey/Poll Management

Surveys & Feedback

Tagging

Task Editing

Task Management

Task Progress Tracking

Task Scheduling

Task Tagging

Team Collaboration

Third-Party Integrations

To-Do List

Transcripts/Chat History

Two-Way Audio & Video

Video Chat

Video Conferencing

Workflow Management

Flock

Android

Web-based

Windows

iPad

iPhone

Associate Project Manager

Some stage we don't want to spend money but we want a good stuff for the team, and that point this helps a lot. The feature which is enabled till the day is really awesome.

Director

Sending an email following a missed message is crowding my inbox. But overall, I can't think of any serious dislikes.

Cloud Developer

Downloading/Installing and Updating is super easy, Using flock is even easier. Integrations are easy to set up and work fine.

Director International Expansion

Makes interdepartmental communication efficient and quick. I love the ease with which you can share files, and make audio/video calls if chatting is not getting the job done.

Marketing advertising

Very  satisfied my team is working very well and friend in useful easy to connect. We use for team communication.

Chiropractic Assistant

Easy to use, great way for our office to communicate effectively.

UX Designer

Provide notification tone changes in the app version of it. The recent chants are lost whenever one makes a hard refresh.

Owner

This saved me from having to VPN to the office to access my desktop Flock icon. I like that emoji's were added so text can have some feelings.

Overall Flock is a timesaver and great way to help build community in our  franchise.

Interpreter 

Easy to get in all the employees and the employer at same portal and communicate with ease. You can create the rules for your company.

Team Users, easy  to use and secure and friendly users global team.

Director of Development

Flock is a super easy chat platform. It can organize the threads per user with a targeted reply or to the whole group.

Senior Recruitment Consultant

Again, integration in this software is quite effective. Flock is easy to use and it's application is based on the field.

Data Scientist

Notification Lag on Mobile Phone. Notification Lag on Mobile Phone.

owner / MD

And it integrates with our existing project management tool trello. What I also like is the responsiveness of the support team.

Dir Business Development

In choosing for our small company, we found Flock to be a better alternative both cost-wise and overall look and feel.

Since the day 1, we were already working as usual because it replaces all collaborative functions. Furthermore, it integrates with many commons tools like Google Drive and Todoist.

Office Manager

There is only 1 thing I would say is cons, when contacting flock it is sometimes hard to understand what they are saying due to they have a different accent the usa does.

Flock screenshot: Have conversations around projects with 1:1 and group chats

Flock screenshot: Chat directly with individuals or create a channel (private or public) to communicate in groups

Flock screenshot: Join video calls from within a chat or channel to connect with remote teams

Flock screenshot: Drag and drop files to share with others, and locate all previously shared files in one place

Flock screenshot: Share important news and updates with the team

Flock screenshot: Add people as guests on Flock and specify the chats and channels they can access

Flock screenshot: Reach out to anyone via an entire company directory

Flock screenshot: Email an entire channel in one go with Flock's auto-generated mailing lists

Flock screenshot: Bookmark important messages for later

Flock screenshot: Convert discussions into tasks by creating to-dos

Flock screenshot: Create polls and allow users to vote anonymously

Flock screenshot: Create notes and collaborate with teams on the go

Large Enterprises

Mid Size Business

Non Profit

Public Administrations

Small Business

Rocket.Chat is a reliable Enterprise Communication Platform for high-private team chatting and collaboration. Reduce operational costs and improve customer experience by centralizing messages from employees and external customers on the same platform.

Mattermost is an open source workplace messaging system for web, PCs & phones, that supports 1-1 & group messaging, file sharing, multiple languages, & more

Basecamp is a comprehensive project management software that helps teams stay organized and on track. Trusted by millions, Basecamp puts everything needed to get work done in one place, providing a structured way to manage projects, collaborate with clients, and communicate company-wide

Enterprise open-source team chat, on-prem and in the cloud. Zulip is the only modern team chat app that is designed for both live and asynchronous conversations.


@mentions

Active Directory Integration

Activity Dashboard

Customizable Branding

Data Import/Export

Document Storage

Employee Communities

Employee Photos

Mobile Alerts

Multi-Language

Real-Time Notifications

Real-Time Updates

Remote Support

Reporting & Statistics

Role-Based Permissions

Single Sign On

SSL Security

Time Zone Tracking

Zulip

Linux

Director of Programs

It's a wonderful, smooth, secure alternative to Slack - perfect for our growing community.

PhD Student

All in all, we have had a great experience since switching to Zulip. Especially, the organization of messages helps us to stay on top of things in times when there's a lot to handle at the same time.

IT Supervisor

Great Way to communicate with my co-workers from the job, love the small integration it has, its easy to use.

Community member

The chat functionality in the web client is awesome for distributed teams - well, for any team, actually. Splitting in topics, all the formatting options, integration of automation really great.

Professor

I learnt of Zulip because of its use by the Lean community, where it has been superb.

I chose Zulip as an open source solution with a good cloud hosting experience and have very happy.

We really love threading model which is main difference over slack we used before. Recent conversations" and "Public streams" are great features I didn't saw elsewhere.

Team Member

My experience with Zulip is very good. It helps to keep track on discussions and keeps them organized.

Awesome platform for communication, has been really easy to use for communicating in one of my classes.

For researchers like me, the built in Latex support is a god send, and I really appreciate the threading interface.

Distinguished Professor in Science

It is similar to Slack, but has a better user interface, and its compatibility with LaTeX makes it more friendly for scientific discussions.

Customer Desk

Excellent cost-effective solution for team collaboration.

What is currently missing is the easy voice chat that Discord or Slack provide.

President

My only complaint is that some features are available on Web but not on the Android app, for example linking to messages.

Team representative

Chat history, ease of use, folder/sub group system and the ability to share files.

Assistant Professor

For mobile you can only be signed in on one account at a time and it's a little annoying to switch.

My biggest issue is the lack of a scheduled message feature.

Zulip is a full on Slack replacement for a fraction of the cost. I really prefer the topic threading to the freeform nature of Slack as well.

Flock vs Zulip Comparison (2026)

Flock

Zulip

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives