
Convertio
iLovePDF
Smallpdf
TinyPNG
Zamzar
iLoveIMG
Online Convert
convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.

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, CloudConvert seems to be a lot more popular than StackStats.app. While we know about 43 links to CloudConvert, we've tracked only 1 mention of StackStats.app.
Website, pricing, platforms and company facts side by side.
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| Website | cloudconvert.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 CloudConvert 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
CloudConvert is recommended for users who regularly need to convert files between different formats, whether for personal, educational, or professional purposes, and prefer an online solution that doesn't require software installation.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Cloudconvert setup
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 CloudConvert 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 CloudConvert 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.


Users highlight Docpose.cloud’s reliability—no failed conversions even on rare formats. CloudConvert gets praise for quality tweaks but frustrates with daily resets. iLoveIMG is loved for extras like AI, but free...
CloudConvert also comes with extensive API Documentation that developers can use to get started with this API as quickly as possible. It even has a Job Builder that can create ready-to-use request payloads and code...
In addition, CloudConvert offers a wide range of features, making it a good choice for both individuals and businesses. The service supports over 200 different file formats, making it one of the most comprehensive...
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.


General converters like CloudConvert handle dozens of formats including PDF→Markdown. They're convenient when you already use them for other conversions. - Source: dev.to / 5 months ago
I tried 3 options, for converting a DWG to a DXF -- FreeCAD, CloudConvert and LibreDWG, and I will be Talking about how all 3 options failed for me. - Source: dev.to / 5 months ago
Convert the PDF to an image using a tool like pdf2png.com or CloudConvert. - Source: dev.to / 12 months 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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