Worth drawing, or skip it?

Anyone who sells illustration, vector art, patterns or digital designs on stock sites and marketplaces — Adobe Stock, Shutterstock, iStock and Etsy. Technique is not the point: whether you draw by hand, work in vector, render in 3D or use AI, what the data measures is which subjects buyers search for and how much supply already exists. It does two jobs: it audits the work you have already published, and it ranks what to make next against your own style. What it does not cover is photography — supply is counted in the illustration catalogues only.

Every verdict is read from the same measurements the rest of the product shows: how often buyers search for the subject, how many works already compete for it, how much of that supply is AI-generated by the marketplace’s own label, and where its season stands. Upload deadlines come from measured run-ups — when search interest for that subject actually starts climbing — not from a rule of thumb. And every card opens to the numbers behind it, because an answer you cannot check is an oracle. The skips are real skips: when a niche is flooded, it says no.

No. You can use the market side — opportunity rankings, keyword research, seasonality and the AI Advisor — without uploading anything. Uploading is what unlocks the portfolio half: reading your style, auditing the keywords carrying each piece, and matching the market to how you actually work. You can also import just your keywords from a contributor CSV, with no images at all.

The full-resolution original is never written down. It is analysed in memory, downscaled, and discarded. What we keep are two watermarked WebP copies — one 384px and one 1024px on the long edge — used to show you your own grid and detail view. The watermark is a tiled overlay at 10% opacity: it is not DRM, and a determined person could filter it off. What actually protects your work is that we never hold the original. You can delete any piece, which removes its stored copies too.

The keywords you really publish, not keywords guessed from the picture. For each piece it reports how its keywords stand against current demand and AI saturation, and flags three specific problems: pieces sitting in niches AI has taken, pieces competing with each other because their keyword sets overlap, and pieces whose demand is next door — where better keywords would move them closer to it. Across the whole portfolio it also names strong keywords nothing of yours uses.

A vision model reads each analysed piece for medium, palette and subject matter, and those readings are aggregated into one profile. 3 pieces are the minimum, because two describe a single piece rather than a style. That profile is what the style-matched ranking searches with — and it leaves out every keyword you already publish, so it suggests niches rather than repeating you back to yourself.

Supply comes from Adobe Stock, Shutterstock and iStock, and seller competition from Etsy. Buyer demand comes from Google Trends, Pinterest Trends and Reddit, with Google Autocomplete suggesting new phrases worth tracking. On top sits a timing layer: public holidays and observances, and upcoming film and TV releases, each linked to the keywords it moves. That is 10 sources in all, reconciled into one time-series per keyword — and nothing outside that list is collected.

Signals are collected daily, so opportunity scores track the current market rather than a one-time snapshot. Not every source touches every keyword every day, though: the metered marketplace sweeps go to keywords with proven search demand first, while a brand-new long-tail phrase gets a cheap supply check until it earns more. Every keyword page shows when its numbers were last collected.

A research agent built on top of the same dataset. You ask in plain words — "what should I draw for Halloween?" — and it queries demand, supply, AI share, seasonality and upcoming events, then returns a ranked report: which niches to take, what to make in each, and when to upload. It shows every step it ran to get there, and it can read the pieces you select in Studio so its answer is about your portfolio rather than the market in general.

No. The model only chooses which topics to recommend and explains why — it never writes a metric. Every number in the report is filled in by our servers from the underlying data, and any topic the data does not actually back is dropped from the answer before you see it.

No, and it is worth being precise. An image you attach to an AI Advisor message is used for that analysis and never stored — only a flag recording that the message had one. A piece you add to your portfolio is different: it is meant to stay, so its two watermarked copies are kept until you delete it.

Mostly we do not have to guess. Adobe Stock labels its own AI-generated assets, and that first-party flag is where our AI share comes from. Shutterstock and iStock publish no equivalent flag, so a niche measured only on those reports an unknown AI share rather than an invented one. Separately, a vision model rates how much of the sampled supply still reads as hand-drawn — we deliberately do not let it guess AI provenance from pixels, because it cannot do that reliably.

iStock is our newest source — it started collecting in August 2026, so it currently covers a growing slice of the keyword pool rather than all of it. Where an iStock count is missing, supply for that keyword is measured from Adobe Stock and Shutterstock instead, and the app shows the gap rather than filling it in. iStock also publishes no AI-generated flag, so it contributes supply but never AI share.

Yes. SincereTrend runs an MCP server, so any client that speaks the Model Context Protocol can query the opportunity ranking, keyword history, forecasts, the event calendar and upload timing directly — and answer from the measurements rather than from a guess. It is read-only: it cannot change your watchlist, your plan or your portfolio, and it cannot reach your uploaded artwork. ChatGPT and Claude connect by signing in and approving it, the way any connector does; editors and terminals use a key you create yourself. Either way you can disconnect one client at a time. It is included in the subscription and in the 14-day trial, and it stops working when the subscription does — there is no separate door.

No. You start with a 14-day free trial and no card up front. After that it is $5/month, and you can cancel anytime.

It stays. Your uploaded pieces, your style profile and your audits keep working on a free account — the subscription is what buys the market layer: opportunity rankings, the style-matched ranking, seasonality and the AI Advisor. Cancelling costs you the market data, not your own work.