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Runalyze VS StackStats.app

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

Runalyze

Runalyze analyzes your complete training, calculates your shape, computes prognoses and visualizes...

Rating
0 reviews
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Alternatives Is it good?
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)
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Alternatives Is it good?
Grapple
Do-It-Yourself Data Analytics & Business Intelligence, Powered by AI sponsored
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Which is more popular?

Based on our record, Runalyze seems to be a lot more popular than StackStats.app. While we know about 69 links to Runalyze, we've tracked only 1 mention of StackStats.app.

social mentions
69 vs 1
Health And Fitness popularity
100% vs 0%
alternatives listed
131 vs 2

Base details

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

Runalyze
StackStats.app
Website runalyze.com stackstats.app
Pricing
Official pricing
Paid $39 / Annually (1 Year License) Official pricing
Company Startup from Germany Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in
Health And Fitness Sport & Health Weight Loss Sports +1
Data Analysis And Visualization Data Analytics Web Analytics

About Runalyze and StackStats.app

In their own words, as submitted to SaaSHub.

Runalyze
StackStats.app

No description of Runalyze 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,...

Read more about StackStats.app

Features and specs

What each product offers, as listed by its team.

Runalyze 5 features
StackStats.app 6 features
  • Comprehensive Data Analysis
    Runalyze offers a wide range of metrics and detailed analysis for various sports activities, including running, cycling, and swimming. This makes it highly useful for athletes who want to track and improve their performance over time.
  • Free to Use
    Runalyze provides most of its features for free, making it accessible to a wide audience without the need for a subscription fee.
  • Integration with Multiple Platforms
    Runalyze can sync with popular fitness platforms such as Garmin, Suunto, and Polar, allowing users to import their activity data seamlessly.
  • Customization Options
    Users can customize various aspects of their dashboards and analytic views, allowing for a more personalized experience based on individual needs.
  • Community Features
    The platform includes community features such as forums and social sharing, which can help users connect with like-minded individuals and share insights.

Possible disadvantages

  • Complex Interface
    The interface can be complex and overwhelming for new users due to the extensive range of metrics and customizable options available.
  • Limited Mobile App Support
    Runalyze primarily exists as a web application, and its mobile support is limited, which can be inconvenient for users who prefer managing their data on the go.
  • Learning Curve
    Due to the vast array of features, new users might face a steep learning curve when first getting started with the platform.
  • Limited Real-Time Analytics
    Unlike some other fitness tracking apps, Runalyze does not offer extensive real-time tracking and analytics, which could be a drawback for users looking for live performance data.
  • Dependency on External Data Sources
    Runalyze heavily relies on data imported from external devices and platforms. If these integrations experience issues, users could face difficulties in maintaining accurate records.
  • 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.

Runalyze
StackStats.app

Overall verdict

  • Runalyze is generally considered a valuable tool for serious runners and athletes who want to delve deeper into their performance analytics. Its strength lies in the detailed and insightful data analytics it offers, although it may be overwhelming for casual users who need a simpler interface.

Why this product is good

  • Runalyze is a robust tool for runners and athletes that provides detailed analysis of training data. It stands out for its advanced metrics, customizable options, and extensive features for performance tracking and planning. Users appreciate its ability to import data from various devices and platforms, giving a comprehensive view of their progress and helping identify areas for improvement.

Recommended for

  • Serious runners
  • Athletes focused on data-driven training
  • Users wanting detailed training and performance analytics
  • Individuals who use multiple devices and platforms for tracking their training

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.

Runalyze 2 videos + Add
StackStats.app 0 videos + Add

Runalyze Online Trainingstagebuch

More videos

  • - Interview mit Hannes und Michael von runalyze - RS-ep031

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
Runalyze
StackStats.app
100% 100%
Health And Fitness
0% 0%
0% 0%
Data Analysis And Visualization
100% 100%
100% 100%
Sport & Health
0% 0%
0% 0%
Data Analytics
100% 100%

Questions & Answers

As answered by people managing Runalyze 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 Runalyze and StackStats.app. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Runalyze no reviews yet
StackStats.app no reviews yet

We have no reviews of StackStats.app yet. Be the first one to post

Social recommendations and mentions

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

Runalyze 69 mentions
StackStats.app 1 mention
  • Richmond Marathon Report: Nine Weeks Between Training Block and Goal Race
    I wasn't sure where to set expectations given my interrupted training, but I decided to aim for 3:03:00, as that's where my Garmin and Runalyze predicted my finish. I planned to set out at a 6:55/mi pace and adjust based on feel. Source: almost 3 years ago
  • Baystate Marathon Race Report: A "BQ" and a 40 minute PR
    Pre-race, Garmin estimated a 3:00:xx, and Runalyze, another great website, thought I'd hit 3:01:xx. This was slightly discouraging, but I know they're just estimates so I didn't take it personally. Source: about 3 years ago
  • Using Runalyze to track progress
    Has anyone else tried Runalyze (https://runalyze.com) to track running progress and performance? Source: about 3 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 / 3 days ago

Alternatives to Runalyze and StackStats.app

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

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