Whatsapp is a brilliant app that facilitates instant messaging and media sharing across iPhone, Android, Blackberry and Windows smartphones. The problem is that it facilitates messaging and media sharining across all these smartphones, so invariably there are going to be people who contact you over Whatsapp who are annoying – so here is where we show you how to block people on Whatsapp. (See all smartphone how-to tutorials.)

Ultimately you can just delete the app, and then there is absolutely no way a person can contact you over Whatsapp. However, that's a little extreme, especially as it means you can't speak to people you actually want to via the smartphone application. So just follow these simple steps and say goodbye to those annoying Whatsappers. (See also The best phone you can buy in 2013)

How to block Whatsapp contacts on Android

Step one:

Open the Whatsapp application and select the contact you want to block.

How to block Whatsapp contacts on Android

Step two:

Next you need to click on the three vertical dots located in the top right of the screen (settings menu) and select More.

How to block Whatsapp contacts on Android

Step three:

Click Block and then select OK to confirm that you want to block the selected person.

How to block Whatsapp contacts on AndroidHow to block Whatsapp contacts on Android

That's it - you have blocked someone on Facebook. To unblock a person just reverse this process.

How to block Whatsapp contacts on iPhone

Step one:

Open Whatsapp and go to Setting and then Chat Settings.

How to block Whatsapp contacts on iPhoneHow to block Whatsapp contacts on iPhone

Step two:

Click the Blocked button and then Add New…

How to block Whatsapp contacts on iPhone

Step three:

Type in the name of the contact you wish to block and confirm. To unblock simply remove the contact from the list.

How to block Whatsapp contacts on iPhoneHow to block Whatsapp contacts on iPhone