I have played around with this a bit more, in answer to your question first I wanted to use the Android App that is available through the Google Play Store but the problem was that I couldn't log in using my email and password.
When playing through the browser I always use my Twitter handle to log in. I ensured that my settings were correct for my email and password by changing them in 'Settings'.
As a result I could log in through a web browser using Twitter credentials but not my email/password, neither could I log in on the Android App using email/login details.
As a last attempt I chose to try the lost password reset on the login page using my email address, I was sent a new password which would you believe allows me to login with email/password into both the browser and the android app.
So problem solved, not sure why but solved.
Thanks for your advice.