This free app offers several hundred sample words as an inducement to purchase the full version. Unfortunately, the more comprehensive vocabulary list in the full version is flawed because of poor translations. I would be reluctant to use any of their language tools.
Ive given a comprehensive review, including a half dozen examples of bad translations, for the full version. This could have been a great study tool, if only the developers had hired a bilingual editor instead of relying on computer translations.
Howard9999 about Spanish Essentials, v1.9.0