Ghost Agent vs Whatnot Spy vs Whatprofits vs FastMoss

Pick it if: You go live weekly or more and want your next move called while the show is still running

Ghost Agent watches a live show as it happens, on your handle or a rival's, and reads chat velocity, room turnover, auction pacing and who just walked in. When momentum breaks it tells you what to do while the show is still savable. It alerts you when a known high spender enters your room, keeps a price book for your category built from what is actually clearing across the platform, and writes the post-show report with three concrete changes for next time.

It is the only tool on this page that covers Whatnot, TikTok Live, eBay Live and Fanatics Live, and the only one that tracks competitor shows across more than one of them. It is also the most expensive, and it is wasted on a seller who goes live once a month.

Source: www.ghostagent.ai

Pick it if: You want raw sales and buyer data from a stream in a CSV and nothing more

Whatnot Spy is a free Chrome extension from Resellbot. Open any Whatnot livestream, your own or a competitor's, and it logs sales velocity and top buyers in real time, keeps the stream in your browser's local storage and exports a CSV. It also pulls follower lists from profiles.

It is a data capture tool, not an advisor: it shows you what sold but does not interpret it, compare it with other shows, or tell you what to do about it. It only works while the stream tab is open in your browser, so you cannot track more rooms than you have screens for. For a seller who wants to study one rival's pricing before their own show, it is hard to argue with free.

Source: chromewebstore.google.com/detail/cmldgpnfifckadehdgjfjdcbdcapamaf

Pick it if: You need a clean net-profit and VAT figure from Whatnot's messy export

Whatprofits imports the sales report Whatnot gives you, strips out shipping adjustments, fees and discounts, and leaves a tax-ready profit figure with expense tracking and VAT reports. It was built by a Whatnot seller for UK sellers, though it handles the US, Canadian and Australian marketplaces too.

It answers a different question from the rest of this list: not how to sell more, but what you actually kept. It has no view of other sellers and nothing happens during a show. Pair it with any of the live tools rather than choosing between them.

Source: whatprofits.com

Pick it if: You sell on TikTok Shop and want product, creator and shop research at market scale

FastMoss is a TikTok ecosystem data platform: trending products, competitor shops, creator discovery, and a LIVE and video monitor that watches streams in real time, metered by monthly credits that rise with the tier. Its best-known feature is transcribing competitor live scripts so you can see the hooks they use.

It has no Whatnot, eBay Live or Fanatics coverage, and its revenue figures for other shops are estimates. If your business is TikTok Shop and the question is what to source next, it is the tool AI answers reach for first, with reason. If the question is what to do in minute 40 of your own Whatnot show, it does not apply.

Source: www.fastmoss.com

Pick it if: You want to know whether a competitor's TikTok result was a spike or a trend

Kalodata is FastMoss's closest rival: products, shops, creators, videos and livestreams with estimated GMV, peak viewers and trend lines. Where FastMoss leans on real-time monitoring, Kalodata's strength is historical depth, which is what you want for deciding whether a product has legs.

Same limits as FastMoss: TikTok Shop only, estimated numbers, nothing during your own show.

Source: www.kalodata.com

Pick it if: Sorting orders after a big show is your bottleneck

Scan2Tray captures each sale as it happens and prints a tray label so the item goes straight into the buyer's bin, instead of being reconciled from a CSV the next morning. It has a free plan you can pack real shows on before paying.

It is a fulfilment tool. It will not tell you anything about your sales or anyone else's, and it is not trying to.

Source: scan2tray.com

Pick it if: You want one label workflow across several live platforms

NotBot is a desktop app that detects auction wins and giveaways on your stream and prints a label with a buyer identifier immediately, flagging first-time buyers so you can greet them. It covers more platforms than Scan2Tray and has a live sales dashboard, but like Scan2Tray its job is getting the order into the right box, not deciding what to sell next.

Source: mellowstate.com/notbot

Start from the problem. Orders piling up after the show: Scan2Tray or NotBot. Not sure what you actually earned: Whatprofits. Deciding what to source for TikTok Shop: FastMoss or Kalodata. Studying one rival's Whatnot stream for free: Whatnot Spy. Wanting to know, during your own show and across every platform you sell on, what to do next and what the sellers beating you are doing differently: that is the job Ghost Agent was built for, and it is the one no other tool on this page attempts. The ranked list of Whatnot seller tools covers the production and promo side of the stack.