What the product computes, what it does not do, and why there is no buy button.
Arbiq looks for price and funding gaps between exchanges and ranks them by whether they are actually executable: is the book deep enough for your size, does the gap cover the fees, has the book frozen, is it even the same coin on both legs.
The point is the filtering. At any moment there are thousands of gaps, and nearly all of them are either arithmetic over dead data or numbers your own size would eat.
It does not trade. You place the orders on the exchange yourself. The product has no access to your account and no buy button — see the separate article about keys.
It does not give buy signals. A rating answers "can this be executed, and how steadily", not "will it go up". The decision stays yours, and every number behind it is laid out in the spread's card.
It does not promise a return. The spread on screen is what the exchanges are showing right now. It can be gone by the time you reach your terminal.
Read the list of spreads, open a card, size the trade in the calculator, set an alert on the condition you are waiting for, and — if you take the trade — record it in the journal so you can see later how it went. You record it by hand: the product knows nothing about your orders beyond what you tell it.