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Mercari VS StackStats.app

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

Mercari

Mercari provides a hassle-free and secure way for anyone to buy and sell stuff straight from their mobile device. We provide a buyer protection guarantee so you can buy in confidence. About UsFurther Information.

Rating
0 reviews
Promote on VibeVoted
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)
Promote on VibeVoted
Alternatives Is it good?
Budy.app
Budy is AI-powered cannabis POS and dispensary management software. Scale-based pricing, strain tracking, offline-first, and AI agents that run your dispensary operation. sponsored
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, Mercari seems to be a lot more popular than StackStats.app. While we know about 19 links to Mercari, we've tracked only 1 mention of StackStats.app.

social mentions
19 vs 1
Online Marketplace popularity
100% vs 0%
alternatives listed
215 vs 2

Base details

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

Mercari
StackStats.app
Website mercari.com stackstats.app
Pricing —
Paid $39 / Annually (1 Year License) Official pricing
Company — Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in
Classifieds Ads Classifieds Online Marketplace eCommerce Platform eCommerce +2
Data Analysis And Visualization Data Analytics Web Analytics

About Mercari and StackStats.app

In their own words, as submitted to SaaSHub.

Mercari
StackStats.app

No description of Mercari 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.

Mercari 5 features
StackStats.app 6 features
  • User-Friendly Interface
    Mercari provides a clean, intuitive interface that makes it easy for users to list and purchase items quickly.
  • Wide Variety of Items
    Mercari offers a diverse range of products ranging from clothing to electronics, giving buyers plenty of options.
  • Simple Listing Process
    Sellers can list items using a straightforward process, including taking photos, writing descriptions, and setting prices.
  • No Listing Fees
    Mercari does not charge sellers to list an item, making it cost-effective to post multiple items.
  • Buyer Protection
    Mercari offers protection for buyers through their in-app communication and secure payment system, reducing the risk of scams.

Possible disadvantages

  • Seller Fees
    While there are no listing fees, Mercari charges a 10% seller fee on each completed sale, which can add up.
  • Shipping Costs
    Shipping is an additional cost that buyers and sellers must consider, and it can sometimes be expensive depending on the item’s size and weight.
  • Frequent Scams and Fraud
    Despite security measures, some users have experienced scams and fraudulent activity on the platform.
  • Customer Service Issues
    Some users have reported difficulties in getting timely responses and resolutions from Mercari's customer service.
  • Competition Among Sellers
    There is high competition among sellers, which can make it harder for new sellers to establish themselves and make sales.
  • 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.

Mercari
StackStats.app

No analysis of Mercari yet.

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.

Mercari 3 videos + Add
StackStats.app 0 videos + Add

MERCARI REVIEW| PROS AND CONS

More videos

  • - Before You Start Selling On Mercari Watch This
  • - Mercari Tutorial: How To Sell Fast On Mercari (2020 Review)

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
Mercari
StackStats.app
100% 100%
Online Marketplace
0% 0%
0% 0%
Data Analysis And Visualization
100% 100%
100% 100%
eCommerce
0% 0%
0% 0%
Data Analytics
100% 100%

Questions & Answers

As answered by people managing Mercari 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 Mercari 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.

Mercari no reviews yet
StackStats.app no reviews yet

View more

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.

Mercari 19 mentions
StackStats.app 1 mention
  • Re: like Enell but cheaper? Or a Canadian source?
    Second-hand sites like poshmark.com, vinted.com, mercari.com, ebay.com, bratabase.com/listings, r/braswap, I even bought a NWT Panache Wired Sports bra for $20 off Facebook marketplace! LOL. Obvi, you can still find NWT from second-hand... Source: over 3 years ago
  • reasonable priced swimwear and bras?
    The final sale stuff on Breakout Bras website is best prices I've found for the U.S. (outside of second-hand sites like poshmark.com, ebay.com vinted.com, mercari.com, the usual suspects. You can still find NWT stuff on these sites. I... Source: over 3 years ago
  • Podcasters promoting hobby lobby
    I have also bought a lot of yarn on Mercari Lots of hand dyed yarn, name brands from individuals de-stash, estates. Source: over 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 Mercari and StackStats.app

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