Common Sense offers great reviews and advice to parents as well as educators. Their new Beta site - Learning with Technology - reviews apps, games, and other media for kids in terms of learning.
This site features reviews of apps from Apple Distinguished Educators. In addition to organizing apps by theme, it also presents them by multiple intelligence and Blloom's Taxonomy.
This is a great review of a standard app - iBooks. It also includes a link to a great podcast about alternate ways to integrate iBooks into the classroom
Flashcard Exchange works much like Quizlet but with a slightly cleaner interface. Students can create flashcards with images or their own text and then test themselves. Flashcards can be published and shared as well. It does work with some apps for review on mobile devices.
This app could be a great review for a basic physics class. It includes a study guide and covers most common units such as motion, vectors, energy, and optics.
Designed for 1st-2nd grade students, Murky Reef combines reading and math skills in the context of exploring a coral reef. This is the free version, though there is a more robust version available for $3.99. Students can review numbers, sight words, and vocabulary. There is some reporting built in.
This app is designed for toddlers to help build number recognition and counting skills. It could also be used in early childhood centers as a review or to provide remediation.
This article from I Education Apps Review lists out a series of apps to use for creating custom digital content. Not all are free, but the list presents some interesting options.
Source: iTunes , Reallusion We use infographics as teaching tools because they hit so many academic sweet spots in critical thinking, graphicacy , data analysis, and interdisciplinary learning. Our students also produce their own graphics, applying visual design to exam reviews , geography studies , or personal hobbies .