
CryptoFighters
1inch
Axie Infinity
Shake Pay
Crypto Celebrities
PayTrie
Decentraland
Breed and collect adorable creatures using Ethereum

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, CryptoKitties 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 | cryptokitties.co | 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 CryptoKitties 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.
CRYPTOKITTIES| CryptoKitties Review: CryptoKitty - Beginners Guide
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 CryptoKitties 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 CryptoKitties 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.


This was one of the earliest blockchain games invented. The game allows users to breed and collect virtual kittens on the Ethereum blockchain. For those that might want to compare this with Axie Infinity, well,...
CryptoKitties was one of the earliest blockchain games in existence. The game allows players to collect and breed virtual kittens that “live” on the Ethereum blockchain. Players can sell CryptoKitties on the...
The NFT rave all began with CryptoKitties in 2017 and looking at their numbers, it is safe to say they are not slowing down anytime soon. The platform still records up to $30K worth of daily transactions and more than...
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.


I'm almost certain that if you know metamask and you bought them around that time you purchased them by just going to cryptokitties.co with the chrome metamask extension installed with the default wallet (I know because that is how I did... Source: over 4 years ago
Https://cryptokitties.co – Crypto Kitties – Collect and breed digital cats. “CryptoKitties is a game centered around breedable, collectible, and oh-so-adorable creatures we call CryptoKitties!”. Source: almost 5 years ago
I can't purchase any Kitties on OpenSeas, it's giving me some gas error, while on cryptokitties.co it's showing this error:. Source: over 5 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 / 2 days ago
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