Spanish Class Demo is an Android application developed by Linguineo BV, designed to help users learn Spanish. The app offers a complete offline Spanish course, including interactive verb, vocabulary, grammar, and listening exercises, all with the added benefit of being able to listen to the words and phrases.

The demo version offers only the first two lessons, which cover tenses (present, gerund, participle), 300 words, basic grammar, and 30 useful phrases. However, the app compensates for the limited content with highly customizable exercises and a fun awards system that makes practicing more engaging. The app tracks your progress by saving statistics and summaries of all done exercises, together with errors made.

The app also has a speaking exercise, although it is more for fun than serious practice. Basic voices are included, but it is possible to buy additional higher quality voices from the third-party company Svox.

In conclusion, if you are serious about learning Spanish, Spanish Class Demo is worth a try. Its fun and addictive exercises make learning engaging, and the app offers a great way to practice verb conjugations, vocabulary, grammar, and phrases. However, keep in mind that the demo version is limited, and the full version comes with tons of additional content.