
RingCentral
Dialpad
Aircall
Nextiva
CloudTalk
OpenPhone
Google Voice
Grasshopper enables entrepreneurs to build a virtual office that connects callers to employees, wherever they are.

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, Grasshopper should be more popular than StackStats.app. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | grasshopper.com | stackstats.app |
| Pricing | ||
| Company | — | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Grasshopper 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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Grasshopper Phone System Review | ENTREPRENEURS NEED THIS
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Grasshopper 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 Grasshopper 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.


GrassHopper is the best virtual phone system for small business owners. It comes with all the standard VOIP service features like call forwarding, voicemail, caller ID, etc. It enables you to make calls using a...
*Grasshopper and its logo are registered trademarks of Grasshopper. MyOperator is not associated with Grasshopper in any way and its trademarks are only used here for comparative purposes.
Grasshopper is another virtual phone number service provider offers great pricing options and various facilities to their users. To start-up, you’ve to pick a number of your choice for your business, record your...
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.


Grasshopper works great. https://grasshopper.com/. Source: over 3 years ago
Get a burner number, there's services for that. Something like Grasshopper. Source: about 4 years ago
I used grasshopper.com successfully. Not sure what the free tier is now. Source: over 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 / 3 days ago
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