Learn Japanese JLPT N4

Learn absolutely anywhere you can use your mobile phone or device! You can even Learn whilst walking!
This is the second in the series, following JLPT N5 Beginner App.
Imagine using your time sitting on the bus or train learning a new language. But when you get off and walk to your destination, you can continue studying!
Combine exercise and learning in a convenient and easy to use package, straight from your mobile device.
JLPT (Japanese Learning Proficiency Test) is the International standard for Japanese learning assessment. This app teaches JLPT N4 vocabulary and sentences to give a standing start to learning Japanese. It is advised that knowledge from JLPT N5 is obtained before beginning this course.
StudyNWalk Beginner Japanese (JLPT N4) contains 7 Courses with a total of 623 different words and phrases for a total of 3115 flashcards, each with Japanese Text and Voice...
- 6 Vocabulary packs (The vocabulary list from JLPT N5 test, split into ~100 word bundles)
- Practise sentences using vocabulary from JLPT N4.
A Translation Dictionary is also included to help find words at any time.
StudyNWalk uses an SRS-FlashCard system to teach words. Each new word starts with a "Question". Think of the answer. Then swipe down to confirm. Swipe Right if you knew the answer correctly, or Swipe Left if not. Unknown words will be repeated more frequently until you learn them.
Swipe Interface
A Swipe interface has been introduced to make using the app even easier when not looking at the screen.
Walking mode / Normal mode
Each Deck of words contains two methods of learning. Walking mode is great when you can't always look at the phone screen. Use your earphones to listen to the words being spoken. The buttons on screen can be easily pressed without looking at the screen.
Normal mode provides a deeper level of learning, using voice and text together. Use this if you can look at the screen.
You can switch between the two modes instantly by pressing SWITCH. Imagine you are on the train, you can use Normal mode. But you can still continue learning after stepping off the train and walking to your destination, by switching to Walking mode.
Use the records mode to see how long you have been studying for and observe your progress. Aim to spend at least 30 minutes a day studying Japanese and you will become fluent before you know it!
Feedback gratefully appreciated! I'm looking to improve this app to make this a more effective study aid