What this is and can I trust it

What the product does, where the numbers come from, what it costs.

• What Arbiq is and what it does for me — What the product computes, what it does not do, and why there is no buy button.
• Do you need my exchange API keys? — Not necessarily. A key is optional and read-only, and it does one thing: it brings your fills and funding into the journal.
• How exchange keys are kept — What happens to a key after connecting, who can see it, and what the worst case looks like.
• Where the numbers come from and how often they refresh — Ten venues, a recount every second, and what "stale data" means.