a prior example is how iphone built in the flashlight app...now the apple watch built in a period female tracker (which have multiple apps built by companies wo

a prior example is how iphone built in the flashlight app...now the apple watch built in a period female tracker (which have multiple apps built by companies worth a couple hundred M all together)...I can't see how this fails since theyve released oxygen monitor in the last watch and better heart rate monitoring...