
Vendoo.co
EcomCalcTools
eRank
SellWhere.app
Loopshot
GetProfitKit
PlainFees
Free fee & profit calculators for eBay, Etsy, PayPal, Stripe, Square and resale marketplaces — updated whenever fees change

Foam
Open repositories in a VSCode environment in your browser

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | sellersum.com | github.surf |
| Pricing | ||
| Platforms | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Seller Sum is a set of 13 free calculators that work out what a marketplace takes from a sale and what you actually keep. There's one for eBay, Etsy, PayPal, Stripe, Square, Whatnot, Depop, Poshmark and Mercari, plus margin, markup and food cost, and a hub that compares every...
No description of GitHub Surf yet.
What each product offers, as listed by its team.


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


No analysis of SellerSum yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using SellerSum and GitHub Surf. For example, how are they different and which one is better?
When comparing SellerSum and GitHub Surf, you can also consider the following products.

Vendoo helps warehouses and e-commerce companies reach different marketplaces, increase their exposure, and manage their inventory from one place.
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Personal knowledge management and sharing on VSCode & GitHub
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Free calculators for ecommerce, SaaS, and marketing. Calculate profit, ROI, fees instantly.
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eRank is the platform that provides you the tools to manage your Etsy store and find the best-selling products for your store.
Compare eRank to SellerSum or GitHub Surf:

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.
Compare SellWhere.app to SellerSum or GitHub Surf:

Free calculator for US resellers: see what you keep from one sale on Poshmark, eBay, Mercari, Depop and Etsy, side by side, with each fee quoted from the marketplace's own page.
Compare Loopshot to SellerSum or GitHub Surf: