
Namechk
Instant Username Search
NameQL
NameMing
Rebrandly
BrandHunt V2
Nameclaim
The Social Brand Search Engine; Find out if your brand, user, or product name is available on over 500 social networks.

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, KnowEm seems to be a lot more popular than StackStats.app. While we know about 15 links to KnowEm, we've tracked only 1 mention of StackStats.app.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | knowem.com | stackstats.app |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


KnowEm allows you to check for the use of your brand, product, personal name or username instantly on over 500 popular and emerging social media websites. Grab your name and secure your brand before someone else does. Search over 500 popular social networks, over 150 domain names, and the entire...
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.


No analysis of KnowEm yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Knowem review | ** Get Massive Social Signals for all your videos and posts **
More videos
No StackStats.app videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing KnowEm 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 KnowEm and StackStats.app. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


KnowEm Http://knowem.com/ Social KnowEm allows you to check 100’s of social profiles at once to check availability. Looking for the perfect brand name? Check KnowEm first. Source: over 3 years ago
Facebook, Google. https://knowem.com/ for username searches. Source: over 3 years ago
Also: review knowem.com its a pretty decent service for social media creation. Source: about 4 years 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 / 4 days ago
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