Use eBay Product Research to inspect the source evidence for an eBay sale. Use Sift when its scan and net-proceeds workflow suits your sourcing process. Verify questionable estimates against comparable transactions instead of treating either interface as a guarantee.
Sift's listing focuses on resale research, sell-through and visible buy-or-pass arithmetic. It describes estimating proceeds after platform fees and showing the sales evidence used for an estimate.
eBay documents Product Research as a tool for researching sales data with filters such as item condition and marketplace, including longer historical periods than completed-listing searches.
| Decision | Sift | eBay Product Research |
|---|---|---|
| Primary question | What might this item net across a resale workflow? | What does eBay's sales history show? |
| Evidence | App-provided estimates and their supporting data | eBay research filters and sales data |
| Best reason to use | A focused scan and proceeds workflow | Inspecting eBay comparables directly |
Use eBay Product Research to inspect the source evidence for an eBay sale. Use Sift when its scan and net-proceeds workflow suits your sourcing process. Verify questionable estimates against comparable transactions instead of treating either interface as a guarantee.
Comparison based on current official descriptions, not hands-on testing of the competing product. Prices, subscription eligibility and feature availability can change.
The sale price is not the profit. Enter acquisition cost, postage, packing and the fee rules for your actual marketplace to see what remains. You can compare a conservative sold-price estimate with a hopeful asking price before committing cash.
Profit = item price + buyer shipping - percentage fee - fixed fee - acquisition - postage - packing - other costs. Fee basis is selectable; a positive margin is not proof an item will sell.
Inputs are processed in this page. Nothing is submitted to the app or a business. Download a result to keep it; this page does not automatically save your work.
An item costs 18, sells for 45 and costs 8 to post. The leftover is smaller once you add fees and packing. Changing the expected sale from 45 to 35 can matter more than negotiating one unit off the purchase cost.
Sift's listing focuses on resale research, sell-through and visible buy-or-pass arithmetic. It describes estimating proceeds after platform fees and showing the sales evidence used for an estimate.
This page does not fetch sold listings or know your marketplace's current fees. Enter the actual fee basis and rates from your account. Tax, returns and your time are separate costs unless you include them.
This page does not fetch sold listings or know your marketplace's current fees. Enter the actual fee basis and rates from your account. Tax, returns and your time are separate costs unless you include them.
SiftThe sale price is not the profit. Enter acquisition cost, postage, packing and the fee rules for your actual marketplace to see what remains. You can compare a conservative sold-price estimate with a hopeful asking price before committing cash.
Open this toolA thrift flip starts at the purchase decision. Compare likely proceeds with all cash costs and how long the inventory might sit; an attractive asking price alone is not a sourcing thesis.
Read this guideUse eBay Product Research to inspect the source evidence for an eBay sale. Use Sift when its scan and net-proceeds workflow suits your sourcing process. Verify questionable estimates against comparable transactions instead of treating either interface as a guarantee.
Read the comparisonSift's listing focuses on resale research, sell-through and visible buy-or-pass arithmetic. It describes estimating proceeds after platform fees and showing the sales evidence used for an estimate.
View Sift on the App StoreThe current listing requires iOS 26.0 or later. Some features have additional device requirements. Check the listing and purchase screen for current availability and terms.