Much better after update.
Have used this a couple of times since the update and it is actually ok now, got me where I needed to go. Now seems to pick up the gps signal ok and doesnt freeze or crash like it used to. I like the simple UI and function. Search function is not very useful, but if you have the postcode of the place you want to go in Japan, then it seems to provide appropriate directions. Voice directions are also now working, but unfortunately it cant read kanji so there are gaps where place names should be. If you need a basic English-language navi to direct you to a place in Japan that you already have the address of, then this is worth trying because it is very cheap and uses google maps data so its generally up-to-date. If you need something with more frills, then youll probably need to spend more and get one of the Japanese-language navi apps.
Kanagawaben about
iWay GPS Navigation - Turn by turn voice guidance with offline mode, v1.5.8