How I Use It
I had a few high level fifth-grade students try this app out for me. They were enthusiastic about the dictionary aspect of the app, but didn't care for the games. They mentioned that the games were confusing and hard to figure out how to play. They did see the merit of using this as a tool in the future.
I used the free app on a Kindle fire
As a whole group this app would be an interesting way to start class, as a do it now (assign the article of the day or quote, or write sentences for the word of the day.)
The games were so, so.
I tried the spelling bee one and the audio was difficult to understand.
I like that in the word of the day you can hear the US and UK pronunciation.
The homepage is customizable so that you can choose which items you'd like to be available for students.
The articles come from Wikipedia, so the reading level might be too high for 3rd grade (lists grade 3-12), but I suppose you could scale down the home page to meet the reading level and content needs of the younger students.
The weather and horoscope widgets were easy to set-up.
The hangman, and match up games are on the difficult side for elementary students but they would be good for high school SAT review.
One may remove items from the homepage by customizing, but there is no way to change the order of the items.
All in all, I'd say that full functionality of this app would be for 9-12 grade.
* This app boasts 14 languages, but English is the only one that offers the full list of games and word of the day. Other language versions offer definitions but only show the weather widget, hangman and words within words game as extras.