Download this app if: you want a free, reliable input method.
TouchPal Emoji Keyboard is a free Emoji Keyboard for Android phone that helps you to fast input over 1000 emoji, emoticons, smileys and text faces conveniently everywhere such as Twitter, WhatsApp, Facebook, Messenger, Evernote, Skype and Line.
TouchPal - the No.1 Emoji Keyboard for mobile...
Slide away — This is a great slide-input keyboard and it's also totally free. Well worth a look, and there's a separate tablet version available too.