
Slack
Rocket.Chat
Discord
Element.io
Telegram
Zulip
Microsoft Teams
Mattermost is an open source alternative to Slack.

ValiAssistant
Verydice
Use ValRequest to craft personalized, heartfelt messages. Make every word count.

Which is more popular?
Based on our record, Mattermost seems to be more popular. It has been mentioned 76 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | mattermost.com | valrequest.net |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Mattermost yet.
ValRequest is an AI-powered Valentine's message generator designed to help people turn their feelings into thoughtful, personalized words. Whether you want to write something romantic for your partner, a playful message for your crush, or a sweet note for a close friend, ValRequest makes it easy...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Mattermost is recommended for organizations that prioritize data privacy and security, need extensive customization options, or are looking to integrate a collaboration tool into existing systems. It is also suitable for teams in regulated industries requiring on-premises solutions.
No analysis of ValRequest yet.
Walkthroughs and reviews on video.
Mattermost - An Open Source, Self Hosted, Slack Chat Alternative
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Mattermost and ValRequest.
ValRequest's answer:
ValRequest stands out because it personalizes messages using your own keywords, so every greeting sounds like you — not a generic template. It offers multiple tone options, delivers three unique choices instantly, and even lets you save your message as an image to share. Simple, fast, and genuinely personal.
ValRequest's answer:
ValRequest is fast, personal, and effortless. Unlike generic message generators, it uses your keywords and chosen tone to craft messages that actually sound like you. You get three tailored options in seconds, no sign-up hassle, and the ability to save your message as a shareable image — all in one simple flow.
ValRequest's answer:
ValRequest is designed for anyone who wants to express their feelings but struggles to find the right words — from romantics crafting the perfect love note to last-minute senders who need something sincere fast. It's equally ideal for those writing to a partner, a crush, or even a friend, making it a versatile tool for all kinds of heartfelt moments.
Share your experience with using Mattermost and ValRequest. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Mattermost is an open-source platform that enables safe collaboration in self-hosted chat programs featuring file sharing, search, and integrations; groups and businesses can use it as an internal chat.
Mattermost uses monolithic architecture, which is tightly coupled and complex to understand. It restricts the scalability of the collaboration tool, which is a limitation for growing businesses. In that case,...
Below is a curated list of the 12 best self-hosted messaging apps like MirrorFly, Mattermost, Zulio, Nextcloud, and Rocket.chat that offer unique collaboration features and lets you take full control of your data.
We have no reviews of ValRequest yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Mattermost | Remote (US and Canada) | FT | Multiple roles Mattermost (https://mattermost.com) is an open-core collaboration and workflow automation platform for air-gapped, on-prem and private clouds. Our customers are in defense,... - Source: Hacker News / 1 day ago
The amazing thing is that there is almost always an open-source alternative that is 10x better in many ways, in the case of slack https://mattermost.com/ I'm looking forward for AI to make it very easy to deploy your own tools and walk... - Source: Hacker News / about 1 month ago
How does it compare to MatterMost [1]? [1] https://mattermost.com/. - Source: Hacker News / 5 months ago
Tracking ValRequest since Sep 2026.
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