There are in-app purchases and ads in the tool. This application is very popular among Samsung and LG users. Get the .apk setup package of Japan Travel 3.6.1 that is free of charge and take a look at users' reviews on Droid Informer. The file size is 100 MB and the app is developed for Android 5.0 and higher.
The antivirus report shows that the app is totally safe.
The way users see it, you can notice such benefits of this application as a good user interface and useful features. Users leave reviews pointing out that there are some disadvantages, they are server errors, unacceptable performance and high battery usage.