Software Alternatives & Startups

Koyfin VS StackStats.app

Compare Koyfin VS StackStats.app and see what are their differences

Koyfin

Koyfin provides tools to help investors research stocks and other asset classes through dashboards and charting.

Rating
0 reviews
Pricing
Freemium Free trial
StackStats.app

Advanced analytics for Substack writers. Runs 100% locally, no cloud, no subscription. Discover your superfans, churn risk, and cohort retention.

Rating
0 reviews
Pricing
Paid $39 / Annually (1 Year License)
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Koyfin should be more popular than StackStats.app. It has been mentioned 4 times since March 2021.

social mentions
4 vs 1
Finance popularity
100% vs 0%
alternatives listed
240+ vs 2

Base details

Website, pricing, platforms and company facts side by side.

Koyfin
StackStats.app
Website koyfin.com stackstats.app
Pricing
Freemium Free trial Official pricing
Paid $39 / Annually (1 Year License) Official pricing
Platforms
Google Chrome Apple Watch Safari iOS Android Web +3
—
Company Startup from the United States · 2016 Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in

About Koyfin and StackStats.app

In their own words, as submitted to SaaSHub.

Koyfin
StackStats.app

Koyfin is a global market analytics platform for researching and understanding markets. From bottom-up fundamentals to top-down macro analysis, our platform, powered by Capital IQ, is trusted by more than 500,000 investors. We offer global coverage of equities, ETFs, Mutual Funds, analyst...

Read more about Koyfin

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,...

Read more about StackStats.app

Features and specs

What each product offers, as listed by its team.

Koyfin 27 features
StackStats.app 6 features
  • Advanced charting
  • Global financials data for 100k+ stocks
  • Global analyst estimates & price targets
  • Global macroeconomic data
  • Global equity screener
  • ETF & mutual fund screener
  • ETF & Mutual fund data
  • 100k+ Company snapshots
  • Transcripts, filings, press releases
  • Advanced transcript search
  • Commodity futures
  • Indices
  • Bond yields & spreads
  • FX data
  • Market & macro dashboards
  • Custom dashboards
  • Dashboard data download
  • Custom financial analysis templates
  • Portfolio tools
  • Model portfolios
  • Watchlists
  • Custom formulas
  • Shareable watchlists
  • Live premium news
  • Custom news feeds
  • Economic & earnings calendars
  • Web and mobile platform
  • Platforms
    Mac, Windows
  • Pricing
    One-time
  • Data storage
    Local Only
  • Internet Required
    No
  • Account Required
    No
  • AI integration
    Yes (optional)

Analysis

An editorial look at what each product does well and who it suits.

Koyfin
StackStats.app

Overall verdict

  • Overall, Koyfin is a strong choice for individuals looking to delve into financial data analysis due to its robustness, user-friendly interface, and the breadth of information it provides.

Why this product is good

  • Koyfin is considered a good platform due to its comprehensive set of tools for investors and financial analysts, offering advanced charting capabilities, extensive financial data, and the ability to track global economic indicators. The platform is intuitive and regularly updated to feature more functionalities and data sources, making it suitable for both novice and experienced users.

Recommended for

    Koyfin is recommended for financial analysts, portfolio managers, individual investors, and anyone who requires detailed data analytics and visualizations for making informed investment decisions.

Overall verdict

  • StackStats.app appears to be a niche analytics/tracking tool, but without verified hands-on data or extensive user reviews available, a definitive quality judgment can't be fully confirmed—prospective users should test the free tier or trial before committing.

Why this product is good

  • Likely offers a focused, lightweight dashboard for tracking specific stats without the bloat of larger platforms
  • May provide simple setup and integration compared to more complex enterprise analytics tools
  • Could offer competitive pricing for smaller teams or solo users compared to established competitors
  • Potentially built with a modern tech stack for faster performance and cleaner UI

Recommended for

  • Indie developers or solopreneurs needing simple stat tracking
  • Small teams looking for an affordable alternative to larger analytics suites
  • Users who prioritize simplicity and minimal setup over advanced feature sets
  • Those willing to test a newer or less-established tool in exchange for potentially lower cost or more tailored functionality

Videos

Walkthroughs and reviews on video.

Koyfin 4 videos + Add
StackStats.app 0 videos + Add

Koyfin Demo, 2023

More videos

  • - Custom Dashboards Masterclass on Koyfin
  • - Custom Formulas, Labels, and Columns
  • - Analysing Wall St Consensus Expectations

No StackStats.app videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Koyfin
StackStats.app
100% 100%
0% 0%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Koyfin and StackStats.app.

What's the story behind your product?

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.

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

Which are the primary technologies used for building your product?

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.

User comments

Share your experience with using Koyfin and StackStats.app. For example, how are they different and which one is better?

Log in or Post with

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Koyfin 4 mentions
StackStats.app 1 mention
  • Resources for equity research and stock reports
    Thanks for the link, that was useful. I found there about koyfin.com which is for free and gives the summary info that I was after. Really spot on. Source: about 4 years ago
  • What is a recent estimate of Apph's short position?
    My stock dashboard (koyfin.com) says 15.33% short interest. Which is correct? Also I think that number was around 25% recently so I guess that's come down? Source: almost 5 years ago
  • Recommendations for stock investment resources - Xetra
    Personally: For individual stocks: Koyfin.com (good for visualizing US ETFs as well but you won't have access to those anyway). Source: about 5 years ago

View more

  • Ask HN: What are you working on? (November 2026)
    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

Alternatives to Koyfin and StackStats.app

When comparing Koyfin and StackStats.app, you can also consider the following products.