I recently went to Oslo and had the chance to use Waywise, and it is a phenomenal travel app. Previously, I reached for Google to translate, convert currency and find good spots to eat and do things – however having all of this offline and already ready to go before my trip was game-changing. The interface is super fast and intuitive; and it even predownloaded generated speech for common translations so I could get by in Norwegian as soon as I landed. A must have if you're travelling and a bargain at the price it's offered – you'll easily save that from avoiding tourist traps or hidden costs. Give it a go!