Quipu

Your Alpaca account, at 120 frames a second.

Quipu is a native iPhone app for trading stocks, fractional shares, options and crypto through your own Alpaca brokerage account. Every price and chart is drawn on the GPU.

Coming to the App Store. Quipu connects to Alpaca with Alpaca’s own sign-in, so it never sees your password.

The Quipu app icon: knotted cords that form a rising chart

Dollars or shares

Buy $25 of a stock or 0.125 of a share. Fractional orders are built in.

Options, properly

Chains, multi-leg strategies, payoff diagrams, implied volatility and time-decay charts.

Paper or live

Practise with Alpaca paper trading, then switch. Every live order asks for Face ID.

Private by design

No ads, no analytics, no tracking. Your account stays between you and Alpaca.

Why “Quipu”?

A quipu is the knotted-cord ledger of the Inca, kept high in the Andes where alpacas live. Each knot recorded a number. Ours record prices.