Scryup analyzes an Amazon product's sales-rank history the moment it starts trending and calls it by day 3 — keeper or fast fade — from the data, not a hunch. Stock the keepers, skip the fads.
Every report also sizes the market for you: estimated units/day, how many sellers are on the listing (and whether they're piling in), the product's own trend track record — and a flag if the spike was just a price cut.
Both surge the same way. The split only shows up later — which is exactly when most sellers have already committed inventory.
Illustrative curves, shaped to the medians we measure across the ~43,000 US Amazon products we track daily, indexed to each product's own pre-surge rank. Lower = selling better.
When a product starts blowing up, you have days to decide whether to buy. Get it right and you ride the wave. Get it wrong and you're sitting on dead stock, marking it down, and paying to store it. And the meter runs while you decide: monthly storage from the day it lands, aged-inventory surcharges from day 181 — and if it's Q4, storage rates that sting from week one.
The hard part isn't spotting what's hot — everyone can see that. And "everyone" includes the twenty other sellers about to jump on the listing and split the buy box. The hard part is knowing what stays hot, and when the rest die. In our data, half of all trends are gone within about two weeks — but the ones still standing at three weeks tend to keep going: the median keeper we confirm sells at double its old pace for more than 150 days. And you can't just wait and watch: by the time it's obvious, your sourcing window has closed.
No vague hype. Here's precisely what we're talking about, measured across the ~43,000 US Amazon products we track daily in 21 major categories.
Every trending product becomes one or the other. Scryup's whole job is to call which — on day 3, before you commit.
Send us one product you're weighing. We run it through our data engine, hand-build its Keeper-or-Dud report — verdict, chart, drivers, and a market snapshot of sales volume and seller crowding — and email it back within 24–48 hours. This is exactly what lands in your inbox.
On high-confidence calls like this one, about 7 in 10 sustain — vs about 1 in 3 of all trends.
We expect this product's demand to hold strong over the coming weeks.
Sales rank, inverted so higher = selling better. Shaded = Scryup projection.
Sales rank improved about 18× off its baseline in a matter of days — far steeper than a typical short-lived bump.
It ranked well below the usual level for Home & Kitchen before the surge — breakouts from obscurity tend to last; bumps on already-popular items tend to revert.
Data estimate, not a guarantee. On high-confidence calls like this one, Scryup is right about 7 in 10 times (base rate: ~1 in 3). Not sourcing advice.
That report is a taste of the engine. Scryup — the tool we're building — never stops working for you.
Paste any product, get the data-backed keeper-or-dud call in seconds — as many as you want. No 24–48-hour wait, no squinting at Keepa charts.
Track the products you hold or have your eye on. We ping you the moment one surges, and warn you when a winner starts to fade — while there's still time to sell off ahead of the storage fees.
The trends in your categories our data says will last — plus a do-not-chase list — surfaced before the crowd piles in.
Stock the keepers. Skip the fads. Stop getting caught with dead stock. Founding members get the free report now — and early access to each piece as it goes live. Claim one of the 50 founding reports →
Every other tool either shows you a chart and makes you guess, or promises "winning products" and never says how often it's wrong. We do the opposite.
We make a real forward call — sustain or fade, over a defined window — not a vague score.
We tested it on data the model had never seen. On our high-confidence calls — 120 of them, held out from training — we're right about 7 in 10 times, against a base rate where only 1 in 3 trends lasts. Better odds, honestly stated.
And our keepers keep going. Once a high-confidence keeper call confirms, about 8 in 10 are still selling strong two months later — 3 in 4 at three months — and the median confirmed keeper keeps selling at double its old baseline for 150+ days. Long enough to source, land, and sell through.
We tell you when we're not sure. Borderline is a valid answer. So is "this isn't actually a trend."
It's an estimate, not a crystal ball. But it turns a coin flip into a decision with the odds on your side.
Send one ASIN you're actually weighing. Within 24–48 hours you get its hand-built report: the Keeper-or-Dud verdict with honest odds, the sales-rank chart with our projection, the two reasons behind the call, and a market snapshot — estimated units/day, seller crowding on the listing, the product's own trend history, and a promo-spike check. Every founding report is built by hand — that's why there are exactly 50. The always-on tool comes next; founding members get it first.