Use APKPure App
Get 日帰り温泉・クーポン検索アプリ おふろぐ スパや銭湯も満載 old version APK for Android
It is a free app that allows you to search for facility details such as one-day hot springs, spas, and super public baths, discount coupons, and word-of-mouth information. You can find your favorite hot bath facility by searching the map or searching for a map.