About this tool

TwinPhone is a browser-based calling service for people who need to call abroad — or need a second phone number — without a SIM card, an app install, or a contract.

Open the site, top up from $10, and dial. Calls reach 145+ countries starting at $0.02/min, billed per minute, with no connection fees and no monthly subscription — you pay only for the minutes you actually use. Audio is encrypted in transit (TLS + SRTP), and the dialer is built to hold up on slow Wi-Fi.

You can also rent a real US or Canada virtual number from $3.19/month, ready in about 60 seconds. Use it to receive SMS verification codes, keep your personal number private, or run a separate line for work. Cancel anytime.

Signup is free and needs no credit card. Works in any modern browser, with a native iOS app for iPhone.