IGrill
idevicesinc.com/igrill
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
iGrill enables you to multitask between your grill and guests with the peace of mind that your food is perfectly cooked, at target temperature and safe for consumption. iGrill communicates with your iPhone, iPad or iPod Touch via a secure, long-range Bluetooth connection.