The Japanese Japanese English Translation Dictionary (or JET for short) is a free and comprehensive dictionary app that lets you search both English and Japanese words. It's a great tool for learning the language, whether you're trying to learn how to read and write it or just want to learn the basics.

You can search words by their spelling, meaning, or phonetic spelling. You can also search by the verbs, adjectives, adverbs, and conjunctions that the word can form. And you can also search by the part of speech, if you want to find out the meaning of a word in a particular context.

The app is very easy to use, and even the most novice of users will be able to learn how to use it in a matter of minutes.