
Balsamiq
Invision
Axure
UXpin
Proto.io
Fluid UI
Zeplin
The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project

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, Moqups 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 | moqups.com | stackstats.app |
| Pricing | ||
| Company | Startup from Romania | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Moqups 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.
Introducing the new Moqups
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 Moqups 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 Moqups 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.


Moqups is another cloud-based best Figmaopen-source alternative used to create diagrams, prototypes, and wireframes. It offers a simple interface along with a variety of features designed specifically for teams,...
Moqups offers an impressive library of Icon Sets, widgets, and smart shapes to use on your website. Use diagram extenders and connectors to come up with diagrams and flowcharts. There are also hundreds of font options...
Moqups is another online application for building mockups, wireframes, and prototypes of UI designs. From diagrams to full-fledged and interactive prototypes, you can get it all done on this web-based app. The strong...
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.


We need to determine the look and functionality of each view in the app. One of the best approaches is to draw each view of the app either using a mockup tool or on paper, this will give you a good idea of what information and data... - Source: dev.to / over 1 year ago
Moqups: Simple tool for creating wireframes and mockups. - Source: dev.to / almost 2 years ago
Functions edit, add, remove post are for authorized persons (of course), that's why you have to make a new page with its layout by using Moqups, for example. - Source: dev.to / 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 / 1 day ago
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