Check in quickly with friends or loved ones with just 3 taps — without having to type a word. This is indispensable when you are on the go and can't stop what you are doing, but just want to stay close with each other throughout the day.
A short message is already typed in for you, so all you have to do is click Send. There's also a GPS location option where you can share your location with your contacts so they'll know where you are and won't worry, or can find you easily if you need them.
If you have young children, or if you are looking out for elderly parents, put this app on their iPhones, it will prove invaluable.