Recommendation:

来华通 (BOC Compass) - Developed by Bank of China, this app provides map and navigation services without requiring registration or login, offering convenience for international visitors. It even features AR live-view navigation to help foreign travelers navigate China with ease.

Maps:

高德地图 (Amap) - Most accurate for real-time navigation

百度地图 (Baidu Maps) - Better for public transit routes

Translation:

腾讯翻译君 (Tencent TranSmart) - Best for voice conversations

百度翻译 (Baidu Translate) - Strong OCR text scanning