Coinciding with the celebration of Cinco de Mayo and for a very limited time, the good folks behind the University of Chicago Spanish–English Dictionary (Sixth Edition) app have dropped the price to $0.99 (usually $4.99). You can a basic screenshot of the app’s functionality above—from breezing through recent reviews, it seems like the app’s ability to generate words lists, along with its word-by-word notetaking feature, has proven especially popular.

From the App Store description:

The Spanish–English Dictionary app is a precise and practical bilingual application for iPhone® and iPod touch® based on the sixth edition of The University of Chicago Spanish–English Dictionary. Browse or search the full contents to display all instances of a term for fuller understanding of how it is used in both languages. Build your vocabulary by creating Word Lists and testing yourself on terms you need to master with flash cards and multiple choice quizzes. Whether you are preparing for next week’s class or upcoming international travel, this app is the essential on-the-go reference.

You can watch a demo of the app here:

The app is, of course, a companion to the (physical book) sixth edition of the University of Chicago Spanish–English Dictionary, praised by Library Journal as, “comprehensive in scope, but simple enough to use for even the most tongue-tied linguist.” Limited time means limited time, so if you’re looking for an “an important contribution to update the traditional dictionary to the new digital era,” visit the App Store today.