Software Alternatives & Startups

Mattermost VS StackStats.app

Compare Mattermost VS StackStats.app and see what are their differences

Mattermost

Mattermost is an open source alternative to Slack.

Rating
0 reviews
Pricing
Open source
StackStats.app

Advanced analytics for Substack writers. Runs 100% locally, no cloud, no subscription. Discover your superfans, churn risk, and cohort retention.

Rating
0 reviews
Pricing
Paid $39 / Annually (1 Year License)
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Mattermost seems to be a lot more popular than StackStats.app. While we know about 76 links to Mattermost, we've tracked only 1 mention of StackStats.app.

social mentions
76 vs 1
Communication popularity
100% vs 0%
alternatives listed
240+ vs 2

Base details

Website, pricing, platforms and company facts side by side.

Mattermost
StackStats.app
Website mattermost.com stackstats.app
Pricing
Open source Official pricing
Paid $39 / Annually (1 Year License) Official pricing
Company Startup from the United States Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in

About Mattermost and StackStats.app

In their own words, as submitted to SaaSHub.

Mattermost
StackStats.app

No description of Mattermost yet.

StackStats is a local desktop app for serious Substack writers. Import your CSV exports and get analytics Substack doesn't show you: bot-filtered open rates, cohort retention, dead subscriber detection, superfan ID, content-to-growth correlation, and an optional AI layer (supports Ollama,...

Read more about StackStats.app

Features and specs

What each product offers, as listed by its team.

Mattermost 5 features
StackStats.app 6 features
  • Open Source
    Mattermost is open-source, which allows organizations to customize and extend the platform to fit their specific needs. This also means that the community can contribute to the development and improvement of the software.
  • Security
    Being self-hosted or hosted in a private cloud, Mattermost offers strong security controls, making it suitable for industries with stringent compliance requirements.
  • Flexibility
    Mattermost supports a wide range of plugins and integrations with other tools and services, providing a high degree of flexibility in customization.
  • Team Collaboration
    The platform provides comprehensive team collaboration features, including direct messages, group chats, and file sharing, which streamline communication and project management.
  • Scalability
    Mattermost is designed to handle large-scale deployments, making it suitable for enterprises with significant user bases.

Possible disadvantages

  • Complex Setup
    Setting up Mattermost can be complex and may require considerable time and technical expertise, particularly for self-hosted deployments.
  • Cost
    While the basic version is free, advanced features and enterprise-grade support come at a cost which can be expensive for smaller organizations.
  • Maintenance
    Self-hosting Mattermost requires ongoing maintenance, including updates and security patches, which can be resource-intensive.
  • Learning Curve
    New users may experience a learning curve due to the platform's comprehensive set of features and customization options.
  • Mobile Experience
    The mobile app, while functional, is often considered less polished and feature-rich compared to the desktop version, which might affect user experience on the go.
  • Platforms
    Mac, Windows
  • Pricing
    One-time
  • Data storage
    Local Only
  • Internet Required
    No
  • Account Required
    No
  • AI integration
    Yes (optional)

Analysis

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

Mattermost
StackStats.app

Overall verdict

  • Mattermost is a strong choice for teams and organizations looking for a secure, customizable, and self-hosted collaboration tool. While it may require more setup than some cloud-based alternatives, the customization and control it offers can be a significant benefit.

Why this product is good

  • Mattermost is considered a good platform for its open-source nature, which provides flexibility and control over data, making it a popular choice for organizations with specific security and compliance needs. It offers robust features for team collaboration, including messaging, file sharing, and integrations with other services. The ability to customize and extend the platform to fit unique organizational workflows is another advantage.

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.

Overall verdict

  • StackStats.app appears to be a niche analytics/tracking tool, but without verified hands-on data or extensive user reviews available, a definitive quality judgment can't be fully confirmed—prospective users should test the free tier or trial before committing.

Why this product is good

  • Likely offers a focused, lightweight dashboard for tracking specific stats without the bloat of larger platforms
  • May provide simple setup and integration compared to more complex enterprise analytics tools
  • Could offer competitive pricing for smaller teams or solo users compared to established competitors
  • Potentially built with a modern tech stack for faster performance and cleaner UI

Recommended for

  • Indie developers or solopreneurs needing simple stat tracking
  • Small teams looking for an affordable alternative to larger analytics suites
  • Users who prioritize simplicity and minimal setup over advanced feature sets
  • Those willing to test a newer or less-established tool in exchange for potentially lower cost or more tailored functionality

Videos

Walkthroughs and reviews on video.

Mattermost 3 videos + Add
StackStats.app 0 videos + Add

Mattermost - An Open Source, Self Hosted, Slack Chat Alternative

More videos

  • - Demo of Mattermost Basics | Features end users love
  • - Getting Started with Mattermost

No StackStats.app videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Mattermost
StackStats.app
100% 100%
0% 0%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Mattermost and StackStats.app.

What's the story behind your product?

StackStats.app's answer:

I built StackStats because Substack's native analytics weren't cutting it. I wanted cohort data, real open rates (not bot-inflated), and a way to identify which posts were actually driving subscriber growth — but every tool I found was either cloud-based or required migrating off Substack entirely. So I built a local app that works with Substack's own CSV exports. No migration, no cloud, no subscription.

What makes your product unique?

StackStats.app's answer:

StackStats runs 100% locally on your machine — your subscriber data never touches a server. It also goes far beyond what Substack shows natively: bot-filtered open rates, cohort retention, superfan identification, dead subscriber detection, and content-to-growth correlation. No subscription, no account, no cloud. Pay once, own it forever.

Why should a person choose your product over its competitors?

StackStats.app's answer:

Most newsletter analytics tools are cloud-based SaaS with monthly subscriptions. StackStats is a one-time purchase that runs entirely on your device. For Substack writers who care about privacy — especially those with paid subscribers — that's a meaningful difference. You also get analytics features that don't exist anywhere else, like bot-filtered open rates and cohort retention, without having to migrate away from Substack.

How would you describe the primary audience of your product?

StackStats.app's answer:

Serious Substack writers who are frustrated by Substack's shallow native analytics and want real data to drive growth — without moving their subscriber data to the cloud.

Which are the primary technologies used for building your product?

StackStats.app's answer:

Electron (macOS + Windows), HTML/CSS/JavaScript, Chart.js, PapaParse. Optional AI layer supports Ollama, Claude, GPT-4, Gemini, Groq, and OpenRouter. Licensing via Cloudflare Workers + D1. Payments via Gumroad.

User comments

Share your experience with using Mattermost and StackStats.app. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Mattermost no reviews yet
StackStats.app no reviews yet

View more

We have no reviews of StackStats.app yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Mattermost 76 mentions
StackStats.app 1 mention
  • Ask HN: Who wants to be hired? (October 2026)
    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 / about 1 month ago
  • Slack Code
    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 / 3 months ago
  • Radicle: Sovereign {code forge} built on Git
    How does it compare to MatterMost [1]? [1] https://mattermost.com/. - Source: Hacker News / 6 months ago

View more

  • Ask HN: What are you working on? (November 2026)
    I'm working on 3 products now: 1. FormBeep(https://formbeep.com) at $38 MRR now - A form to Whatsapp tool. Stack is mainly CF workers with Clerk Auth. 2. SlashLink(https://slashlink.app) $0 - A simple pay as you go amazon link localizer.... - Source: Hacker News / 2 days ago

Alternatives to Mattermost and StackStats.app

When comparing Mattermost and StackStats.app, you can also consider the following products.