Apple is celebrating the life of a college student so they're giving away one education-themed app each week via the official Apple Store client for the iPhone and iPad.
Although some other promo offers are available only to Apple Store visitors, anyone who has downloaded the free shopping app to their device and has a U.S.-based iTunes account can now download Tydlig for free.
Note that these promos are separate from Apple's ongoing Free App of the Week so iOS apps which go temporarily free in the Apple Store app still cost money when accessed regularly in the App Store via their iTunes links.
In the past two weeks, two high-quality apps have gone temporarily via the Apple Store app (not to be confused with the App Store): the gorgeous Rise Alarm Clock and Runtastic Pro, a premium version of the popular fitness tracking software.
If you love calculators, the advanced Tydlig for the iPhone and iPad will be free until next Wednesday, a $2.99 saving.
Here's how you can redeem your free copy of Tydlig...