Telegram is big on privacy, but that doesn't mean you always want to keep things hush-hush -- in fact, you may want to reveal exactly what you're up to. Appropriately, the company just updated its Android and iOS apps with an option for live location sharing. Turn it on and everyone in a chat can see where you are in real time for as little as 15 minutes or as long as 8 hours. As you might imagine, that could be more than a little helpful if you're meeting up with someone or want to know when your friends get home.