9 features you probably didn't know exist in WhatsApp

Group chat notifications — especially in a big group — can become annoying, particularly if you aren't involved in the conversation. While muting group chat may seem drastic, sometimes these things have to be done.

Go to the group chat in question, click on its name and select "Mute" where you will be presented with three options: 8 hours, a week, and a year.

Hiding your "Last Seen" time is a useful feature if you don't want people to know when you last checked into WhatsApp.

In order to switch it off, head to Settings > Account > Privacy > Last Seen. From here, you can select who gets to view your "Last Seen" time.

The feature does come with a trade off: you won't be able to see anyone else's "Last Seen" time either.

Setting up WhatsApp and then changing phones can be a pain. The service is not linked to your actual phone number, just the first number you enter and verify. This "number" will then follow you onto your next phone, creating confusion for everyone.

If you get a new number, you can change your WhatsApp number quite easily but going to Settings > Account > Change Number and following the steps from there.

An alternative to muting group chat is having different notifications for each one meaning that you only have to check your phone for the important ones.

Just like the muting feature, head to the chat, click the name and go to "Custom Notifications" where a different sound can be selected.

Phone storage space is a precious thing, and WhatsApp can consume a lot of it.

To avoid this, head to Apple Settings > Privacy > Photos and then un-select WhatsApp from the list, banning the app from saving new pictures to the camera roll. Pictures do still download, however, so you won't be missing out.

Checking when someone read your message is useful for all kinds of reasons, especially in a group chat setting.

To check, select the message and drag it left, revealing the time it was delivered and the time it was read. In a group chat, a list of who the message has been delivered to and who has read it shows instead.

Note: if you uncheck Read Receipts to prevent people from seeing when you have read their messages, you also won't be able to see when other people have read your messages (explained next).

Reading someone's messages without replying is, in 2015, considered the height of bad digital etiquette. Luckily, WhatsApp can help.

By going to Settings > Account > Privacy and switching off Read Receipts, your friends will never know that you are ignoring them.

WhatsApp Web, accessed via web.whatsapp.com, brings the phone experience to your computer and is available in all major browsers.

To access it, go to the website, scan the QR code with the WhatsApp app and you will be logged in. From here you can start, continue and end conversations with all the usual features that are in the app.