The Twitter app is the official mobile offering for the microblogging service. While it used to lag behind third-party Twitter apps, it's now arguably the best way to tweet and engage with your followers.
All of Twitter in your hand
When you open the app, there are three screens to swipe between. First is your feed, featuring the tweets of people you follow, as well as the occasional 'promoted tweet'. There are also tweets suggested by Twitter based on who you follow.
Swipe left to view the Discover tab. Here you can see current trends (which you can set by location), popular tweets, and retweets and suggestions for users to follow.
Swiping again brings up the Activity tab. This shows you what the people you follow have been up to on Twitter. You can see what tweets people have favorited, for example, and get a feel for what people are talking about when not creating their own tweets.
You can also see your own Twitter profile, messages, and notifications.
When you tweet from the app, as well as sharing links and 140 characters of text, you can now take photos and video and share them directly in your tweet. Videos can last up to 30 seconds, and do not loop, making them much longer (and less loopy) than Vine, the video app which is owned by Twitter.
Privacy and help for new users
Twitter supports multiple accounts, which are really easy to set up and switch between. Privacy is now well served - you can connect the service to your phone, and any time you or anyone else tries to log in, they will have to enter a code sent to your device.
New users will get suggested people to follow, which are mainly brands and celebrities. We would warn against this, and instead try to find friends and people with who you share interests so you can get involved in conversations more easily. Twitter as a service can be daunting for newcomers, and this is not helped by the fact people use it for very different reasons. It takes a little persistence to get into the app, and find out why you want it.
The obvious and best choice
It has taken some time to get here, but it's fair to say this is the best Twitter app around, whether you're a new or experienced user.