Key features: 1. Offline maps from official sources. 2. Usable even no internet connection and Wi-Fi lost. 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 This app includes: 1. Train/Subway Network – Tariff Area Abc 2. Bus/Ferry Network 3. Tram Network 4. Berlin Travel Guide Book 5. Berlin Gay Travel Guide Book 6. Train/Subway Network – Tariff Area Ab