JA Sensei 4.6.3 is available on Google Play. 

Here are the new features:

• 10 to 15 new word examples for each JLPT and Jouyou kanji (total about 30000 new word examples!)
• During a vocabulary quiz, comments now only appear for ambiguous words
• 15 typographical examples for each kana
• Vocabulary: theme "House" now free for all users (68 extra words)
• Kanji: choose to hide romaji for word examples
• A few spelling mistakes fixed in the vocabulary module

Premium users, please reinstall modules KANJI & VOCABULARY to enjoy all the new features 

Please leave a comment on Google Play if you have some time, it's very important for the application reputation, and therefore its future developments. THANK YOU VERY MUCH!