The answer @mahassan is yes there is a mobile application for steemians and I am using it all the time!
I am using an android mobile phone and there is also the iOS version for iphone.
The application is esteem developed by a steemit witness @good-karma thanks to him. You can check the @esteemapp account for this application.
@good-karma is an honest and trusty person but it's better, as I do, to sign in your account using only your posting key not your owner key.
One more thing if you have had tagged your post above with esteem tag you would have been rewarded from @esteemapp and @good-karma about 0.6 $ I think!
Good luck @mahassan