When traveling to Japan, which iOS App are more distinctive and practical?

I have traveled in Japan (Liu) and (Xue) for several years. I can directly inquire about the tourist attractions in official website, and generally have electronic travel brochures to print. When you arrive in the local area, you must go to the tourist service center first. There are more abundant map information for you to read. It is recommended that tourists rent mobile wifi in China, which is much cheaper than renting it in Japan. In addition, some apps need to be downloaded and used very much, such as Google Maps, which is necessary for walking and avoiding getting lost. You can enter the phone number and address of the hotel.

The mobile phone comes standard, the road is blind, just follow the route arrow; Booking credit card payment, many hotels can cancel the reservation for free. It's convenient to book here if you want to go to Europe. Eat food.

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You can scan the bar code to check the price. Group tourists will know that they have been slaughtered by sweeping the laox duty-free shop. Imoney global exchange rate conversion uses the best exchange rate software at present, and so on.