I just wanted to stress that this app is only for iPhone 7 and 7 plus (if the title and description in the app store isn't enough) as they are currently the onl

I just wanted to stress that this app is only for iPhone 7 and 7 plus (if the title and description in the app store isn't enough) as they are currently the only devices that have the Taptic Engine. If you have an older device, it will not work.