Just informing users about the changed IAP behavior...
Apple changed the dialog box asking for confirmation while doing in-app-purchase. Previously it used to ask for TouchID to authenticate and then poped-up a dialog box asking to Buy or Cancel. Now it asks for TouchID and straightaway make the purchase without giving an option to cancel.
Although it's one less step while purchasing, in some apps, the price is not listed and you have to click Upgrade just to see the price and that's where it asks for TouchID along with showing the Upgrade price and you accidentally end-up making a purchase even though you just wanted to check the price.
Apple changed the dialog box asking for confirmation while doing in-app-purchase. Previously it used to ask for TouchID to authenticate and then poped-up a dialog box asking to Buy or Cancel. Now it asks for TouchID and straightaway make the purchase without giving an option to cancel.
Although it's one less step while purchasing, in some apps, the price is not listed and you have to click Upgrade just to see the price and that's where it asks for TouchID along with showing the Upgrade price and you accidentally end-up making a purchase even though you just wanted to check the price.