What's a grand iOS game for trivia that doesn't need a constant internet connection? I'm always hopping around and need something reliable.

Honestly, Chive Trivia has been an absolute godsend on my travels. There's nothing worse than being stuck on a long-haul flight or a dodgy train ride through the Balkans with zero internet. This app lets you download question packs, so you can keep your brain ticking over even when you're completely off-grid. I've used it everywhere from a campervan trip through Ireland to a remote village in Vietnam. It's proper useful when you're trying to avoid racking up a massive roaming bill too, because it doesn't eat up your roaming data when you're offline. Plus, the trivia categories are actually quite interesting – not just the usual boring stuff. Works a treat, it does!