How calling works on a Mac today
- iPhone Cellular Calls (Continuity) lets the Phone or FaceTime app on a Mac place calls through your iPhone. It needs an iPhone with an active plan, signed in to the same Apple Account, and usually on the same network. No iPhone, no calls.
- FaceTime Audio calls other Apple users for free, but it cannot reach a landline or an Android phone.
- A browser calling service such as TwinPhone needs neither: the Mac's browser connects the call to the phone network itself.
That makes the browser the answer for a work Mac, a Mac at home while your iPhone is elsewhere, an Android owner with a MacBook, or anyone whose phone plan charges heavily for international calls.
Step by step: call from Safari, Chrome or Firefox
- Go to twin-phone.com in Safari, Chrome, Firefox, Edge or Brave on your Mac.
- Sign up with an email or a Google account. No card or phone number is needed to sign up.
- Add credit from $10. Unused credit never expires.
- Type the number with its country code. The dialer shows the per-minute rate for that exact number before you press Call.
- Allow the microphone when the browser asks.
If macOS blocks the microphone, open System Settings → Privacy & Security → Microphone and switch your browser on, then reload the page. A headset or AirPods give the other person the clearest sound.
Prices and caller ID
Calls to US and Canadian numbers are $0.02/min; every other destination is on the rates page and in the dialer before you call. Billing is in whole minutes, rounded up, with a one-minute minimum and no connection fee. There is no subscription for calling.
The person you call sees a shared TwinPhone number by default. Rent a US number from $3.19/month and choose it in the "Call from" menu if you want them to see a number they can call back — incoming calls then ring in the browser tab.
Ways to call a phone number from a Mac
| iPhone Cellular Calls | FaceTime Audio | TwinPhone in a browser | |
|---|---|---|---|
| Needs an iPhone | Yes | No | No |
| Calls landlines and Android phones | Yes | No | Yes |
| Cost | Your iPhone plan | Free between Apple users | Per minute; $0.02/min to the US and Canada |
| International calls | At your carrier's rates | Apple users only | 145+ countries, rate shown first |
| Install anything | Built in | Built in | No — runs in the browser |
| Emergency calls | Yes, through the iPhone | No | No |
