This thermometer is the best one I've ever spent money on. $20 at Target. You have to download the free app to use. Then plug the thermometer into your phone. You can set up different accounts for each family member. It records their temperature, symptoms, time, etc. It makes my life so easy when my kiddies are sick. I usually run around looking for a piece of paper and a pen to write down the temp, when I gave medicine, etc. Great investment!
BTW I gave 4 stars because it doesn't ask anything about medicine. But it does have a notes section so that's where I put the time I gave meds.