The desktop app is the same terminal you get in a browser, in a native window. It is free, it updates itself, and it is where you should keep the keys to any account holding real money.
Why desktop for live trading
A browser is a shared, hostile place. Your terminal tab sits next to whatever else you have open, and browser storage is only as safe as the browser.
The desktop app hands your credentials to your operating system instead. On macOS they go into Keychain, on Windows into Credential Manager, on Linux into the Secret Service. These are the same vaults your system uses for your Wi-Fi passwords, protected by your login, and no web page can reach them.
The browser terminal is not unsafe. Your keys are encrypted there too, behind a password, a passkey or Touch ID, and they never reach a Pairlens server either way. Desktop is simply the stronger of the two, and the difference matters most when the account is funded. See connect an exchange.
What else desktop adds
Eight more venues. Coinbase, Gate, KuCoin, MEXC, Bitfinex, Kalshi, KuCoin Futures and Kraken Futures refuse connections from web pages as a security policy of their own. A browser cannot reach them at all. The desktop app can, which takes you from 14 venues to all 22. If a venue looks greyed out in the browser terminal, this is why.
Bots that keep running. A browser tab throttles or suspends background work when you switch away. The desktop app keeps a running bot alive and can stop the machine going to sleep underneath it. See bots.
Multiple windows. Press ⌘N to pull the current view into its own window. Put your chart on one screen and your book and ticket on another. The windows stay in sync, and alerts fire once rather than once per window.
Real system notifications. Alerts arrive in your operating system’s notification centre, so you see them with the terminal minimized.
Screenshots that go where you expect. Chart images save to a real folder you choose.
Updates
The app checks for new versions and installs them itself. Every build is signed, and the app verifies that signature before installing anything, so a tampered update cannot get in. You can also check by hand from the app menu.
Get it
Download a build for macOS, Windows or Linux from the
install page. If you would rather build it yourself, the source is
public and bun run dev:desktop is the command. See the
Quickstart.