Which iOS app is the best for translating foreign menus and street signs while traveling without a data connection?

Google Translate is a comprehensive solution for travelers who need real-time, offline translation capabilities. Its defining feature for this use case is the ability to download entire language packs to a device, enabling text translation and basic camera translation without an internet connection. This is particularly useful in scenarios like reading a restaurant menu in Tokyo or deciphering a train station sign in rural France where Wi-Fi is unreliable. The app's camera translation function allows users to point their phone at text for an immediate overlay of the translation, which works passably offline for many languages. For basic conversations, the two-way conversation mode can also be used offline for pre-downloaded languages. Reviews indicate users heavily rely on this offline functionality, with many calling it a 'lifesaver' during international trips. However, some limitations exist. The offline camera translation can be slower and slightly less accurate than its online counterpart, and features like full conversation translation or transcribe mode require a connection. The interface, while generally straightforward, can sometimes feel cluttered with promotional nudges for other Google services. Despite these minor imperfections, the app's core offline tools are robust and free, making it the go-to choice for practical, on-the-go translation needs.