SellerSum VS ShellNewHandler

• 13 fee and profit calculators
  Calculators for eBay, Etsy, PayPal, Stripe, Square, Whatnot, Depop, Poshmark and Mercari, plus margin, markup and food cost. A comparison hub puts every marketplace's cut side by side.
• Rates quoted from official fee pages
  Every rate comes from the marketplace's own published fee page, and each calculator shows the date it was last checked. The source link sits on the page, so you can confirm the number yourself instead of taking our word for it.
• Tested against the marketplaces' own examples
  Where a marketplace publishes a worked example, the calculator reproduces it to the cent. eBay's $400 phone example is one of them, and a unit test fails the build if it ever stops matching.
• Fee changelog and email alerts
  Every fee change is logged with the date it landed. Sign up and you get one email when any tracked marketplace moves its rates, whichever calculator you use.
• Free, no signup
  Every calculator is free and works without an account. Nothing is behind a paywall.

Possible disadvantages

• Amazon-Only Limitation
  Since the tool is built specifically for Amazon sellers, it may not support other e-commerce platforms like Shopify, eBay, or Walmart, limiting its usefulness for multi-channel sellers.
• Subscription Cost
  Like many SaaS tools in this space, SellerSum likely operates on a subscription model, which adds an ongoing expense that may not be justified for very small sellers or those just starting out.
• Learning Curve for Advanced Features
  While the basic interface may be user-friendly, understanding and utilizing more advanced analytics or customization features may require some time investment to learn.
• Dependency on Amazon API Reliability
  Because the tool relies on syncing with Amazon Seller Central, any changes to Amazon's API, policies, or data availability could impact the accuracy or functionality of SellerSum's reporting.
• Limited Customization
  Depending on the platform's design, sellers with very specific or complex accounting needs may find the reporting templates and metrics less flexible compared to building custom solutions in Excel or specialized accounting software.

No features have been listed yet.

No analysis of SellerSum yet.

Tracking SellerSum since Jul 2026.

• I recently got libreoffice, but now the new option in right click looks like a mess. Can someone help me get rid of them please?

  Use Shell New Handler. Run the portable app and simply untick the items you don't want to appear in your new context menu. Source: about 4 years ago

• This menu should be easy to add/remove programs to... Who is really creating Access Databases from this menu often enough to keep it here? (Not me!) Is there an easy way to edit this?

  I've always used ShellNewHandler for this. It's a really simple portable utility that allows you to remove most of the items from that menu. Tested it out on Windows 11 and it's still compatible. Source: over 5 years ago