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SellWhere.app VS StudySpaces

Compare SellWhere.app VS StudySpaces and see what are their differences

SellWhere.app

Free resale fee calculator: compare seller fees across eBay, Poshmark, Mercari, Vinted, Depop and Etsy in one place. See where you keep the most profit.

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StudySpaces

StudySpaces is a white-label tutoring and test prep platform with built-in SAT, ACT, etc. curriculum, auto-graded mock exams, and a branded student portal.

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GilFlow
GilFlow is smart cash flow management for individuals and teams — track income, expenses, subscriptions, and cash flow across every workspace, on the web and on Android. 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?

Calculators popularity
100% vs 0%
alternatives listed
22 vs 1

Base details

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

SellWhere.app
StudySpaces
Website sellwhere.app studyspaces.com
Pricing —
Official pricing
Platforms
Web
—
Company 1 - 9 employees · 2026 —
Listed in
E-Commerce Tools Online Calculators eCommerce Calculators Finance eCommerce Tools +3
Edtech SaaS B2B SaaS Tutoring Test Preparation Test Prep Online Tutoring Elearning Platform Exam Preparation Exams Software Digital Assessments And Tests Online Assessment +9

About SellWhere.app and StudySpaces

In their own words, as submitted to SaaSHub.

SellWhere.app
StudySpaces

SellWhere is a free fee comparison tool built for resellers who sell across multiple platforms. One input, six answers. Enter a sale price once and instantly see your net payout ranked across eBay, Poshmark, Mercari, Vinted, Depop, and Etsy. No more switching between calculators or guessing which...

Read more about SellWhere.app

No description of StudySpaces yet.

Features and specs

What each product offers, as listed by its team.

SellWhere.app 4 features
StudySpaces 0 features
  • Multi-Platform Comparison
    Enter a price once, see net payout ranked across 6 resale platforms
  • eBay Deep Fee Modeling
    20+ categories, 6 store subscription tiers, 3 seller levels
  • Verified Fee Rates
    Every calculator shows last-verified date with links to official fee pages
  • Shipping Cost Toggle
    Choose buyer-pays or seller-pays shipping; fees recalculate automatically

No features have been listed yet.

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
SellWhere.app
StudySpaces
100% 100%
Calculators
0% 0%
0% 0%
Exams Software
100% 100%
100% 100%
eCommerce
0% 0%
0% 0%
SaaS
100% 100%

Questions & Answers

As answered by people managing SellWhere.app and StudySpaces.

Which are the primary technologies used for building your product?

SellWhere.app's answer

  • Astro — static site framework for fast, SEO-friendly pages
  • React — interactive calculator components (Astro Islands architecture, so only calculators load JavaScript)
  • Tailwind CSS v4 — utility-first styling
  • Cloudflare Pages — global edge deployment for fast load times worldwide

What makes your product unique?

SellWhere.app's answer

SellWhere is the only free tool that lets you enter a sale price once and instantly compare your net payout across 6 major resale platforms — eBay, Poshmark, Mercari, Vinted, Depop, and Etsy. Most fee calculators only handle one platform at a time.

Our eBay calculator goes deeper than any competitor, modeling 20+ item categories, 6 store subscription tiers, and 3 seller levels. Every calculator shows when fees were last verified, with direct links to official fee pages so you can trust the numbers.

How would you describe the primary audience of your product?

SellWhere.app's answer

SellWhere serves two main groups:

  • Casual sellers clearing out closets or decluttering, who want to know which platform gives them the best payout before listing
  • Professional resellers who list across multiple platforms (eBay, Poshmark, Mercari, etc.) and need accurate, up-to-date fee comparisons to maximize their margins on every item

What's the story behind your product?

SellWhere.app's answer

SellWhere was born from a real frustration: resale platform fees are confusing, constantly changing, and scattered across different help pages. We wanted one place to see exactly what you'd take home on every major platform, with no guesswork.

Resale fees are also in a period of rapid change — Mercari dropped its seller fee to 0% in 2024, Depop eliminated buyer fees in mid-2024, and Vinted launched in the US in January 2026. Keeping up is hard. SellWhere was built to be the single source of truth for resellers navigating these shifts.

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Alternatives to SellWhere.app and StudySpaces

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