Save on international calling from the UK

Stay connected with your loved ones and get a £2 bonus when you create new account with BOSS Revolution.

The Best International Calling App

Our unique app is ready to deliver on its promise of reliability, low cost, and a high quality connection. You can also call and send messages app to app for free over Wi-Fi. So, whether you’re trying to call a family member, set up a business meeting, or reconnect with a long-lost friend, we’re here to help.

Distance shouldn’t mean disconnected. At BOSS Revolution, it’s our mission to help you stay in touch despite the miles. Make international calls, send messages, and stay connected with some of the best rates for calling overseas.

BOSS Revolution calling app features

Any country with great rates and crystal clear connection
Promotions from your favorite mobile carriers
Mobile top-ups to your friends and family in a few clicks
And share your photos and videos for free
News, listen to radio from any country and see what’s trending
4.5, 149.5К Ratings
4.6, 129К Ratings

Why make international calls from the UK with BOSS Revolution?

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Great Rates

Who said staying connected had to cost a fortune? Whether you’re calling internationally to Haiti, Kenya, Nigeria, Ghana or Guatemala with BOSS Revolution, you can rest assured that you are getting the best calling rates around. This is a better way to make cheap international calls, no matter your location. Save up to 90% compared to a standard mobile carrier.

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Excellent quality

Ensuring crystal clear quality and uninterrupted calls is what we do best. BOSS Revolution is part of the IDT Corporation, which has been bringing the world closer together for more than 30 years. As part of an established global business, we have telecommunications hubs on three continents and direct connections to phone networks all over the world.

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Simplicity and Security

Staying in touch shouldn’t mean expensive fees or the need for a perfect internet connection. At BOSS Revolution, we make it simple. Just register an account, add balance and start calling. But don’t worry, you won’t be tied into an expensive subscription – just pay and go! Or call app to app for free over Wi-Fi .

What our customers say about us

Excellent App with the best discount for calls. Am amazed and have introduced the App to many people.

Nimota Olukotun

It's very good am really enjoying it anytime anywhere and I have recommended it to all my friends.

Demian Ukeachu

Very wonderful and awesome. Boss revolution makes me feel at home. I can reach my family any time.

Iziegbe Enogieru

I have used this app for over six years, it's been amazing.

RD Jamwal

I have been using it for handful of years. It feels I am calling locally. I call my grandparents who are in their 80s. And it’s only possible because of this app. Thank you!


This is a very good app that serves the purpose well. They have good rates and I enjoy using it.

But what makes BOSS Revolution so good?

Want to make an international phone call but don’t know where to start? Let us show you why BOSS Revolution is your perfect connection companion for calling abroad.

Got questions? Here’s the low-down on calling with BOSS Revolution

At BOSS Revolution we do our best to help you solve all the possible issues. Please check out our FAQ page or contact our customer service team if you have any questions.

How do I sign up for BOSS Revolution?

Signing up is simple. Create an account on the website by clicking “Join” in the menu bar or download the BOSS Revolution app and follow the simple in-app instructions. Then just add funds and start saving on international calls to over 200 countries worldwide.

How do I add funds to my account?

Adding funds to your account is simple. You can add to your balance via a credit or debit card in the BOSS Revolution calling app or on the website. The choice is up to you.

How much does it cost to call abroad?

Depending on where you’re calling to, rates will vary. When you enter the number you want to call, BOSS Revolution will automatically give you the relevant per-minute rate for your call. Our calling rates and fees are always transparent, with no hidden charges for calling international phone numbers.

Which BOSS Revolution access number do I need to use?

No access number is needed when using our app. However, if you’re calling from a mobile or landline phone, you need to dial one of these numbers first. Please, select the language you speak:

  • Local Access Cantonese 0-330-777-1229
  • Local Access English 0-330-777-1222
  • Local Access Mandarin 0-330-777-1228
  • Local Access Polish 0-330-777-1223
  • Local Access Portuguese 0-330-777-1221
  • Local Access Romanian 0-330-777-1224
  • Local Access Spanish 0-330-777-1220
  • Local Access Tagalog 0-330-777-1225
  • National Access 0-845-613-0036

As an alternative, you can use BOSS Revolution's toll-free access numbers: 0-800-0147-837 (English) and 0-800-6527-861 (Spanish). Please note, you may be charged by your landline or mobile service provider for calling our access numbers. Please check the details of your plan with your provider..

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