Know what it’s worth before you buy it.
Photograph anything on a charity shop rail and get an estimated resale price, how fast that kind of thing sells, where to list it, and the most you can pay and still make money.
Built around the decision you actually make
Not “what is this?” but “do I put it in the basket?” — which is a question about money, not identification.
A range, not a number
A quick-sale price and a patient price, because the same jacket is worth two different things depending on how long you’ll sit on it.
How fast it moves
Sell-through, typical days to sell and how much competition is already listed. A $60 item that takes nine months is worse than a $25 item that goes in a week.
Where to sell it
Eight marketplaces ranked on what you actually take home after each one’s real fee structure — eBay, Poshmark, Mercari, Depop, Etsy, Whatnot, Vinted or locally.
Your maximum buy price
Work backwards from the fees, the postage and the return you want, so you know your walk-away number before you reach the till.
Measured profit, not guesses
Record what you paid and what it sold for, and every figure runs back through that platform’s fee model. Estimated values never count as profit.
Works without signal
Charity shop basements have terrible reception. The app keeps working when the connection doesn’t.
What it doesn’t do
Worth being straight about, because plenty of apps in this category are not.
Comparable sales are modeled, not live. No marketplace publishes its sold listings openly, so ThriftLens shows the shape of the market around an estimate rather than records of specific sales, and links you to each platform’s own sold search to check. Anything estimated is labelled as an estimate everywhere it appears — and never counted as profit.