
Element.io
Signal
Telegram
Revolt.chat
Mattermost
Rocket.Chat
Discord
Matrix is an open standard for decentralized persistent communication over IP.

Substack
Formo.so
Advanced analytics for Substack writers. Runs 100% locally, no cloud, no subscription. Discover your superfans, churn risk, and cohort retention.
Which is more popular?
Based on our record, Matrix.org seems to be a lot more popular than StackStats.app. While we know about 598 links to Matrix.org, we've tracked only 1 mention of StackStats.app.
Website, pricing, platforms and company facts side by side.
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| Website | matrix.org | stackstats.app |
| Pricing | ||
| Company | Startup from the United Kingdom | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Matrix.org 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,...
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
Matrix.org is recommended for individuals and organizations that prioritize privacy and security in their communications. It's ideal for tech-savvy users who value open-source solutions and those who seek to avoid centralized communication platforms. Additionally, it's suitable for developers looking to build custom communication solutions using a versatile protocol.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Matrix.org and StackStats.app.
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.
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.
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.
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.
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.
Share your experience with using Matrix.org and StackStats.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Matrix.org never charges. It's completely free. Its free servers are open to all for public registrations.
We have no reviews of StackStats.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Https://matrix.org is used by public agents of France's central administration, Germany's national healthcare system, Germany's armed forces, the Swedish Social Insurance Agency and more: https://en.wikipedia.org/wiki/Matrix_messaging. - Source: Hacker News / about 2 months ago
Technical implementation should include privacy controls as core features, not afterthoughts. Build data export functionality, implement secure deletion processes, and provide transparency reports showing what data you've collected and... - Source: dev.to / 8 months ago
Matrix is an open, decentralized communication protocol for real-time messaging, voice, and video. Synapse is the reference homeserver implementation -- the software you run to participate in the Matrix network. Think of it like email:... - Source: dev.to / 8 months ago
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
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Fast, simple & secure messaging. Privacy that fits in your pocket.
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Analytics and data platform for DeFi apps
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Don't bother with chat apps that don't respect your privacy. Revolt is a brand new chat platform designed around you.
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