That quirky underground restaurant. Sitting on the train. Or your friend’s basement flat where you can only get signal if you stick your arm out the window.

On mobile networks, unfortunately there are times when you just can’t seem to get a signal. So we created Three inTouch for our customers – a free app that lets you connect through Wi-Fi even if there’s no mobile signal. Just download and activate.

No signal? No problem with Three inTouch – email, Three (16 October 2014)

All Three users in the UK – wait, that sounds like the company is really unpopular, let me try again. All the doubtlessly millions of people in the UK who use the Three mobile phone company have today been emailed about Three inTouch. This is an iOS and Android app that lets you make phone calls and send texts even when your phone has no signal. At least, when it has no mobile phone signal. It does have to have wifi.

But if you’re in a spot and moreover are in a wifi spot, you will be able to launch the app and get on with calling or texting. Or sexting. I don’t judge. That Three email says it works anywhere in the UK and that the cost of the service is effectively free: a call or text will cost you just whatever it would cost you if you were doing it over a mobile phone signal like 3G or 4G.

Also, when you phone someone this way, it looks and sounds to them like you’re ringing from your normal phone. I’ve made wifi calls before but using Skype; it’s not been the best experience but generally speaking neither is Skype.

If you’re a Three customer, you’ve got or you will soon get the email with details. If you’re not or you’re in a hurry, check out the Three company’s page about it online and go get the free iOS app or free Android app.