Naver Maps 
You can use Google Maps to find your way, but for better accuracy and more frequent updates, we recommend using Naver Maps. Naver Maps allows you to find the optimal route, time and cost to your desired destination. It offers route suggestions and estimated travel time depending on your mode of travel: walking, biking, driving, and public transportation. The map is also connected to Korea’s major search engine, Naver, providing customer reviews and links to the official website, if any, when looking up a restaurant, café, or popular attraction.
App │ Android, iOS (Korean, English, Japanese, Chinese)
Subway Korea 
Subway Korea is a simple metro map that offers real-time subway schedules along with all the basic information you need for taking the subway in Korea such as train arrival times, line routes, transfer guides, and estimated travel time based on departure and arrival points. The app provides information for all the metro systems in Korea: Seoul and the metropolitan area, Daejeon, Daegu, Busan, and Gwangju. It also has a bookmark feature for saving frequently used routes.
App │ Android, iOS (Korean, English, Japanese, Chinese)
Kakao T
We don't always have the convenience of using public transportation such as buses and the metro, especially when you're burdened with luggage. In such cases, reserving a taxi becomes a necessity, and the Kakao T app is the most reliable choice for this purpose. This app operates much like Uber - all you need to do is provide your current location and your desired destination. Then, you'll find the "Request Taxi" button - just click it, and that's it! In just a matter of minutes, your taxi will arrive to pick you up. Please note that for using Kakao T, your credit card information should be verified and registered.
App │ Android, iOS (Korean, English, Japanese)
Papago
Papago is the most widely used online translation app among Korean speakers. In addition to text-based translations, the app can recognize and extract text from various sources, including images, handwriting, webpages, and spoken words. It supports translations for 14 different languages, including Korean.
App │ Android, iOS (Korean, English, Japanese, Simplified Chinese, Traditional Chinese, Vietnamese, Thai, Spanish, French, Indonesian, Russian, German, Italian)
