Software Alternatives & Startups

Fly.io VS StackStats.app

Compare Fly.io VS StackStats.app and see what are their differences

Fly.io

Edge computing is the new frontier.

Rating
0 reviews
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, Fly.io seems to be a lot more popular than StackStats.app. While we know about 484 links to Fly.io, we've tracked only 1 mention of StackStats.app.

social mentions
484 vs 1
Cloud Computing popularity
100% vs 0%
alternatives listed
240+ vs 2

Base details

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

Fly.io
StackStats.app
Website fly.io stackstats.app
Pricing
Paid $39 / Annually (1 Year License) Official pricing
Company Startup from the United States Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in

About Fly.io and StackStats.app

In their own words, as submitted to SaaSHub.

Fly.io
StackStats.app

No description of Fly.io 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.

Fly.io 6 features
StackStats.app 6 features
  • Global Deployment
    Fly.io enables developers to deploy applications geographically close to users, reducing latency and improving performance.
  • CLI and Git-based Deployment
    Fly.io offers a command-line interface and Git integration for quick and efficient application deployment.
  • Automatic SSL
    Fly.io provides automatic SSL/TLS certificates, simplifying secure traffic management.
  • Scalability
    Applications deployed on Fly.io can scale both vertically and horizontally to handle varying loads.
  • Built-in Storage
    Fly.io offers persistent storage solutions such as Fly Volumes, which seamlessly integrate with applications.
  • Integrated Monitoring
    Fly.io provides built-in monitoring tools to track application performance and health.

Possible disadvantages

  • Learning Curve
    New users may find the platform's concepts and deployment methods unfamiliar, requiring time to learn.
  • Documentation
    Users have reported that the documentation can sometimes be lacking in detail or difficult to navigate.
  • Cost
    While Fly.io offers a free tier, the cost can become significant as you scale your applications.
  • Limited Language Support
    Fly.io supports fewer runtime environments and languages compared to more established platforms like AWS or Azure.
  • Platform Maturity
    As a relatively new platform, Fly.io may lack some advanced features and ecosystem integrations offered by more mature competitors.
  • Debugging
    The debugging tools and processes can be less comprehensive compared to traditional cloud providers.
  • 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.

Fly.io
StackStats.app

Overall verdict

  • Fly.io is a strong choice for developers looking to enhance application performance through global deployment without the complexities often associated with managing multiple infrastructure locations. Its ease of use and robust features make it a competitive option in the edge computing space.

Why this product is good

  • Fly.io is known for its edge computing solutions that allow developers to deploy applications closer to users, resulting in reduced latency and improved performance. It supports a wide range of programming languages and frameworks, and offers a straightforward platform for deploying full-stack applications globally. Fly.io's pay-as-you-go pricing model can also be cost-effective for projects of various sizes.

Recommended for

  • Developers looking to deploy applications globally with minimal latency.
  • Teams needing a scalable and flexible infrastructure that can grow with their needs.
  • Projects that benefit from a serverless approach without sacrificing control over the code and environment.
  • Applications that require rapid deployment and ease of management.

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.

Fly.io 1 video + Add
StackStats.app 0 videos + Add

We FLY a SPACESHIP! Video Game FLY.io Computer App with HobbyKidsTV

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
Fly.io
StackStats.app
100% 100%
0% 0%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

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

Log in or Post with

Reviews and articles

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

Fly.io 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.

Fly.io 484 mentions
StackStats.app 1 mention
  • Cloudflare Bought Deno: What It Means for Your Deployments
    Tool What it is Official link Cloudflare Workers Edge runtime + Durable Objects - the supported Deploy migration target Https://workers.cloudflare.com {/* MONETIZATION NOTE: official URL above; Cloudflare's affiliate terms were... - Source: dev.to / 25 days ago
  • You write one kind sentence. I donate a dime. A blockchain makes sure I do.
    Go 1.26 standard library, modernc.org/sqlite for a pure Go SQLite, and solana-go for the RPC client, transaction building and the SPL Memo instruction. React 19, Vite 8, TypeScript 7 and Tailwind CSS 4 on the page. Alegreya and IBM Plex,... - Source: dev.to / 2 months ago
  • Best alternatives to Heroku in 2026
    Fly.io opens up two things Heroku keeps at arm's length: real multi-region deployment and full control over the runtime. Heroku's Common Runtime offers two regions (US and EU), and Private Spaces gets you one region at a time from a... - Source: dev.to / 4 months 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 Fly.io and StackStats.app

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