There is a nice language tool available. It is an open source proofreading software for English, German and more languages:
Tag Archives: English Language
New App: Academic Writing in English
The University College London offers an interactive self-learning course in Academic Writing in English. This app is availalbe for iOS and Android.
Find more at http://www.ucl.ac.uk/english-usage/apps/awe/index.htm
Academic Writing Tips
This blog post by Next Scientist gives you some tips to improve academic writing including 15 typical English grammar goofs:
http://www.nextscientist.com/tips-improve-your-academic-writing