Isn’t it great that you can take a picture or shoot a short film with your phone and immediately post it on Twitter, Vimeo, Flickr or Facebook? Schedule posts on-the-go... No need to download it first to your computer. You can post a picture to social media without leaving the Photos app. Have more fun on social media save a lot of time with these features!
Apple explains on their support page how to share content from iPhone, iPad or iPod Touch. Use the “Settings” menu of your device to connect to your social-media accounts. Sign in, share content, or update your contacts and calendars with information from social-media profiles.
Apple explains how to sign in to a social media account:
Tap Settings, then scroll down and tap a social network, such as Twitter. Sign in with your username and password for that social-network account. If you forget your username or password, visit the company's help page. For example, Facebook and Twitter offer online support to help you with your account.
Share and post content without switching to a social-media app:
After you sign in to your social-media account from your device's Settings menu, you can share content on social media right from Safari, Photos, and some other apps. For example, open Photos, tap a picture, and tap Share icon. Then tap a social network, like Facebook, to share the picture from your Facebook profile.
Update your contacts with social-media usernames and photos:
Follow these steps to update your contacts:
Scroll down and tap the social network that you want to use.
Tap Update Contacts.
Today's best-known social platforms began on the web, the iPhone — by putting social media in our pockets — is what helped the industry explode. As a user enjoy the simplicity and ease of use.