Yo went from being what was considered a dumb joke to an amazing success basically overnight. The app’s idea dead simple: let the user send only the word “Yo” to a friend in a push notification. Now there’s an API for the app and it’s being used to warn citizens about missile strikes in the Middle East.
As you can imagine, there are plenty of app makers trying to jump on the Yo bandwagon after all the attention it has been getting. One app that sticks out from the rest is AHOY, a new iPhone app that takes the Yo concept one step further by adding location to the mix.