Key features: 1. Offline maps from official sources. 2. Usable even without internet connection and Wi-Fi 3. Can zoom in, zoom out and scroll vertical and horizontal. 4. Easy to use. Quick to find your place. 5. Without charge. 6. Bookmark and customize maps and web pages by yourself. 7. Local guide and local foods guide. 8. Paperless and environmental sustainability 9. LGBT friendly travel guide This app includes: 1. Tokyo Metro Subway Map 2. Tokyo Jr Train Map 3. Tokyo Travel Guide Book 4. Ha