Know what you actually made.

Most resellers track their flips in a spreadsheet, or not at all. The spreadsheet never quite knows the platform fees, the postage gets forgotten, and the "profit" column is a guess. Then tax season arrives and you are scrolling through months of payouts trying to work out gross receipts.

Flip is an inventory book that does the maths for you. Add an item when you buy it, mark it listed, mark it sold. It works out the platform's cut, subtracts postage and what you paid, and shows the real net profit and ROI for every item, every platform and every place you source from.

WHAT IT DOES

• Every item from sourced to listed to sold, with brand, category, source, SKU or bin, and notes
• Platform fees worked out automatically for eBay, Poshmark, Mercari, Depop, Facebook Marketplace and Whatnot, on the item price plus what the buyer paid for shipping
• Editable fee table, so when a platform changes its rates you change one number
• Net profit, ROI and days to sell on every sale, with a live breakdown as you type
• Death pile counter: bought but never listed, and how long each one has waited
• Aging view: unsold items by days listed, stale after 60 days, money sitting in each bucket
• Dashboard: sales and net profit by month, sell-through rate, average days to sell, best platforms after fees, best sources by ROI, best categories
• Year end: gross receipts, cost of goods sold, fees, postage, net profit, a per-platform table for matching 1099-K forms, and what is still on hand
• Search, filters, sortable columns, tick several items and mark them listed or sold in one go
• Export everything or one year as CSV, print the year-end page, backup and restore

Who it's for

Anyone flipping thrift, estate sale, clearance or bin finds on eBay, Poshmark, Mercari, Depop, Facebook, Whatnot or a mix, from a few sales a month to a few hundred.

What you get

• Flip (one .html file, runs in your browser, offline)
• A 2-page quick-start guide

Good to know

• One file. No install, no account, no subscription, no internet needed after download.
• Your data stays on your computer. Export a backup any time; import it on another machine.
• Built for a computer screen: Windows or Mac, in Chrome, Edge, Safari or Firefox.
• Instant download.

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