For buyers
Every listing on Viroan is re-run on our data with real fees, slippage, gaps and outages included. You buy against our numbers, not the seller’s screenshot.
What you are actually buying
Not on a forum, not on a marketplace that takes the seller’s word for it. This is the part you find out afterwards, at your own expense.
The screenshot is real. So is the fact that it was picked out of every window available, by the person who wants your money. Move the start date one month and the same strategy tells a different story.
you are buying a selection, not a resultFees, spread, slippage, funding. Leave them out and a losing system looks like a winning one — and almost every backtest you are shown leaves them out.
that gap is usually the whole profitWhat the description says and what the source does are two separate claims. Declared 2% risk with 5% in the code is not a rounding error — it is four times the position you agreed to.
you find out when it is already runningSome tools want trading permissions on your account before they do anything at all. Once granted, you are relying on a stranger’s judgement and a stranger’s uptime.
and the loss is yours aloneEvery one of those is a measurement problem — and every one is measurable by somebody who is not selling you the product. That is the whole idea here.
The three that were turned away
Anonymised, straight from the reports:
None of this is visible in a screenshot. All three would have sold.
The check
The creator states what the build does. Everything after that is measured against the statement — and the certificate names what the measuring missed.
Non-custodial: Viroan does not receive your exchange or broker keys, does not hold your funds, and does not place orders on your behalf. What you buy is a licence to software that runs on your machine. The full pipeline, step by step →
Compatibility targets. Viroan is not affiliated with, endorsed by or partnered with any venue listed.
What you get
Not features we are proud of — rules that hold whichever product you open, because they are properties of the marketplace and not of the seller.
Comparing two products stops being an exercise in reading between the lines, because both of them answer the same eight questions in the same places. The certificate is one of the eight, and it opens without an account.
A licence key, not a custody arrangement. The software runs where you run it, on credentials you never send us. Nothing about buying here moves your money or hands anyone permission over it.
What you see before you pay is what leaves your card. No platform subscription, and nothing added at the last step.
No notice period, no support ticket, nobody to persuade. Revoke the key on your side or pull the software, and it is over.
The part most marketplaces leave out
It is printed on every certificate rather than buried, because a check that claims to cover everything is worth nothing.
Two answers people always want, before they ask: you can read every certificate before buying anything, without an account. And you have 14 days to withdraw from a purchase, for any reason and at no cost. You lose that right only when all three of these are true: you expressly asked us to deliver before the 14 days ended, you acknowledged that you would lose the right to withdraw, and we sent you a confirmation by e-mail that records those two statements. If any of the three is missing, you keep the full 14-day right.
And the sentence that matters most: trading automation can lose money, including all of it. A high check score means the build did what it claimed under our tests — not that it will make you anything. Nothing on Viroan is investment advice, and no certificate is a prediction. Buy accordingly, and size accordingly.
The catalogue and every certificate are open without an account. Buy only if the record convinces you — publishing it is the only reason it exists.
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