
Bootstrap
Tailwind CSS
Foundation
UIKit
Semantic UI
Materialize CSS
Skeleton CSS
Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.

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, Bulma seems to be a lot more popular than StackStats.app. While we know about 118 links to Bulma, we've tracked only 1 mention of StackStats.app.
Website, pricing, platforms and company facts side by side.
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| Website | bulma.io | stackstats.app |
| Pricing | ||
| Company | Startup from France | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Bulma 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.


No analysis of Bulma yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
S.H. Figuarts BULMA Dragon Ball Action Figure Review
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 Bulma 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 Bulma 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.


I chose Bulma for its efficient use of Flexbox, a layout model that allows a responsive design with minimal effort. This efficiency sets Bulma apart from many other CSS frameworks. In my judgment, Bulma stands out as...
Suppose you want to learn the valuable skill of working with the mobile-first Bulma framework. In that case, we highly recommend taking the "Master Bulma CSS Framework" course by Jeppe Schaumburg Jensen on Udemy. In...
Bulma comes with a beautiful range of colors out-of-the-box, and it won’t be wrong if we call it the most beautiful framework out there in the market. It can be used directly to get really nice-looking websites with...
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.


Today I want to share something I've been working on that combines two things I love: clean CSS frameworks and Material Design aesthetics. I just launched Plus Ultra, an open-source CSS library that brings Material Design components to... - Source: dev.to / 9 months ago
Bulma - CSS framework based on Flexbox. - Source: dev.to / 9 months ago
Sure, why not use Blazor? It makes life easier for the developers who are primarily backend, to work on the frontend as well. Seems like the better choice. So what's next? The UI library. No shade to the long-time standing Bootstrap, but... - Source: dev.to / about 1 year 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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