Most “good deals” are not good deals.

Fees, shipping, supplies and dead stock turn a fat-looking spread into a loss — usually after you have already paid.

Deal Gate OS is a pre-purchase profit system. Enter the buy price, likely sale price and platform. It returns net profit, ROI, max buy price, and a BUY / TIGHT / SKIP decision.

WHAT YOU GET
• Phone-ready Deal Analyzer
• 10 marketplace fee models you can edit
• Platform comparison for the same item
• Max-buy and break-even calculators
• Inventory tracker with days-on-hand
• Dead-stock protocol
• Offer-acceptance math
• Weekly P&L review
• Four worked examples
• 60-second Buy / Skip rules

HOW TO USE IT
Open the analyzer. Enter cost, sale price, shipping and platform. Read the gate. If you buy, log it. Review dead stock once a week.

WHO IT IS FOR
Resellers, retail-arbitrage sellers, thrift buyers, and sneaker/streetwear flippers who sell on eBay, Mercari, Poshmark, Depop, StockX and similar.

WHO IT IS NOT FOR
Anyone looking for hot deals, bots, or guaranteed profit. This does not source inventory.

AFTER PURCHASE
Open the course, do lesson 1, download Deal-Gate-OS.html to your phone, and run one real deal before you buy anything else.

Fees change. Included rates are 2026 starting models — verify current platform fees. This is an operational tool, not financial advice, and does not guarantee profit.