Yo presents an almost absurdly simple mechanism to quickly subscribe and unsubscribe from push notifications. There aren’t many services taking advantage of it yet — for now, you can only Yo WORLDCUP to turn on notifications for when there’s a goal — but in the future, you might receive a Yo from a restaurant to say your table’s ready, or from an airline to say that your flight’s boarding, or from your weather channel that there’s a flash flood warning. Yo the account again and notifications are turned off. Like with most apps, you can bring your subscriptions with you from phone to phone.
Here's why you're going to install the most annoying app in the world | The Verge
Here's why you're going to install the most annoying app in the world | The Verge