Which app actually helps you make money reselling? Some scan an item and price it from a photo, some do the fee math, some track your whole inventory for tax season — and most of the good ones now gate the best features behind a signup or a subscription. Here's an honest look at the top options and what each is genuinely best for.
Updated 2026 · free vs paid comparedScan an item (or type it) and get live eBay comps plus a take-home Flip-or-Pass verdict after real fees, in seconds. It's free to use, needs no account to start, and runs in any browser — nothing to install (a native app is on the way). Fee calculators for eBay, Poshmark, Mercari, Depop, and Facebook are built in.
Scans an item, pulls real sold comps across eBay, Poshmark, Depop, and Mercari, then has AI write an optimized eBay listing and post it in one tap. The most hands-off option here if you want to go straight from find to live listing.
Snap an item for AI-matched eBay sold comps, a deal score, red flags, and ROI, with an inventory tracker and real P&L reporting. Strong if you like data and want everything saved to an account for tracking.
A mobile-first reseller business tracker: inventory, price research, a profit calculator, plus expense and mileage logging built for tax time. More back-office than in-aisle scanner.
Turn a photo or keyword into sold prices, median, and demand, with extra Poshmark sharing/automation tools (formerly Closet Tools). Geared toward sellers who live on Poshmark and want automation on top of comps.
A privacy-friendly Chrome extension with an always-free profit and fee calculator across Poshmark, Depop, eBay, and Mercari, plus a limited daily sold-comps search. Handy at your desk, not in the store.
Also worth knowing: Google Lens is free but only identifies items (no prices), and Revalue offers a few free scans a day.
| App | Best for | Free tier | Signup to start | Use in the aisle |
|---|---|---|---|---|
| BIDonBOT | Free, no-signup price check | Yes | No | Yes (browser) |
| Cluzy | Scan + auto-list to eBay | Subscription to use | Yes | Yes (app) |
| Underpriced | Deal scores + analytics | ~5 free analyses | Yes | Yes (web) |
| Flippd | Inventory + tax tracking | Free plan, capped | Yes | Partly (app) |
| Resellbot | Deep comps + Poshmark | Trial only (~$30/mo) | Yes | Yes (app/web) |
| ResaleKit | Free desktop fee calc | Yes (calc) | No | No (desktop) |
Features and pricing as of 2026 and subject to change — verify on each app's site.
If you want a free, instant price-check with no signup while you're standing in the store, that's exactly what BIDonBOT is built for. If you want the app to also write and post your listings, Cluzy is the move (and you'll pay for it). If you're scaling into a real business and need inventory and tax tracking, Flippd earns its keep. Plenty of resellers pair a fast scanner for sourcing with a separate tracker for the back office.
For a free, no-signup price check in the store, BIDonBOT — scan or search, get live eBay comps and a flip/pass verdict after fees, no account needed. ResaleKit's profit calculator is also free but desktop-only. Most other apps give a handful of free scans, then charge.
No. BIDonBOT is free to use. Paid apps like Cluzy and Resellbot add features such as one-tap auto-listing and Poshmark automation, but you can price an item and decide whether to flip it for free.
Any tool that pulls real sold-comp data fast on your phone. BIDonBOT runs in any mobile browser with no install and no signup, which is why it's our pick for in-aisle checks; Cluzy and Underpriced are strong paid alternatives.