Beginner Klingon is a free Android application developed by shotgun.experiments. This application is designed to teach the basics of the Klingon language to beginners and enthusiasts. With almost a thousand words available in the app, users can learn up to 12 words per day based on the 'a word a day' concept.

The app uses a repetitive learning technique, testing the user's knowledge of the words they have learned. If the user answers correctly, the app will test them less frequently, and if they answer incorrectly, the app will adjust and test them more frequently. This allows users to learn at their own pace and retain the information they have learned.

Overall, Beginner Klingon is an effective and straightforward language learning app that is perfect for anyone interested in learning the basics of Klingon. With a simple interface and daily word learning, users can quickly build their vocabulary and gain an essential understanding of the Klingon language in just a few weeks.