A trio of interesting updates hit the App Store on Thursday, as WebMD added new coaching options to its Healthy Target feature, RollerCoaster Tycoon 4 became a free-to-play game, and Sony released a new music app that will give iOS users a discount on one album each day.
Sony has a new app out today in the U.S. that offers up a deep discount on one album from the artists on its record label over the course of a 24 hour period, with a new one arriving each day. The discounts in “Album of the Day” will vary, but can offer as much as 70 percent off the standard sticker price, meaning for most albums in the iTunes Store you might pay as little as $3 for…